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Artykuły w czasopismach na temat "TAGUCHI DOE"
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Islam, M. N., i A. Pramanik. "Comparison of Design of Experiments via Traditional and Taguchi Method". Journal of Advanced Manufacturing Systems 15, nr 03 (26.07.2016): 151–60. http://dx.doi.org/10.1142/s0219686716500116.
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This paper presents a case study on comparison of Design of Experiments (DOE) via traditional and Taguchi methods in terms of efficiency. First, a three-level, four-parameter, full factorial DOE was conducted for finding the effects of machining parameters on the surface roughness (arithmetic average) of parts produced by turning operation. The results were analyzed applying average response, Taguchi’s [Formula: see text]/[Formula: see text] ratio, and Pareto ANOVA. Subsequently, the same data was analyzed applying Taguchi’s L9 orthogonal array. The comparison of two results revealed that despite an 88.9% savings of experimental runs with the Taguchi method, both methods produced similar results.
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Kowang, Tan Owee, i Choi Sang Long. "Design of Experiment – An Integration of Fisher, Taguchi and Shainin DOE Methodology". Applied Mechanics and Materials 789-790 (wrzesień 2015): 1201–6. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.1201.
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Design of experiment (DOE) is the focal collective of quality technique and is widely used in Research and Development (R&D) organization to optimize product design parameters. There are three main DOE approaches that commonly adopted by R&D companies, which are the classical Fisher’s DOE, Taguchi DOE and Shainin DOE. This paper explores how these three main DOE approaches could be integrated to optimize product design parameters in a Research and Development company. The paper starts with enlightenment of the common DOE steps, follows by discussion of issues faced by the Research and Development company during the implementation of the three DOE approaches in product design. The paper subsequently illustrates how the three DOE approaches could be integrated as a new methodology for optimization of product design parameters. The integrated DOE methodology presented in this paper offers an alternative and effective way to conduct DOE in a dynamic product design and development environment.
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Rafidah, Ali, A. Nurulhuda, A. Azrina, Y. Suhaila, I. S. Anwar i R. A. Syafiq. "Comparison Design of Experiment (DOE): Taguchi Method and Full Factorial Design in Surface Roughness". Applied Mechanics and Materials 660 (październik 2014): 275–79. http://dx.doi.org/10.4028/www.scientific.net/amm.660.275.
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Statistical quality improvement techniques such as design of experiments (DOE) and Taguchi methods form an essential part of the search for improved product performance. This paper applies both the Taguchi and full factorial design techniques to highlight the application and to compare the effectiveness of the Taguchi and full factorial design processes as applied on surface roughness. Besides that, to determine the optimal parameter setting for each factor in surface roughness. For this study, we used two different probes of Mahr Surf XR20 which was MFW 250 tracing arm 6851804 (25μm) and tracing arm 6851806 (50μm). The main effect and interaction plot had been analyzed by using MINITAB (software). The experiment result showed that full factorial design performs better than Taguchi method.
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Yue, Cui Hong, i He Lin Zou. "Optimization Based on ANSYS Electric Numerical Method for a Novel MEMS ESI-MS Ion Focusing Device". Key Engineering Materials 483 (czerwiec 2011): 727–30. http://dx.doi.org/10.4028/www.scientific.net/kem.483.727.
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In order to improve the ion transmission efficiency from atmospheric pressure MEMS electrospray (ESI) ion source to mass spectrometry (MS), a novel ion focusing device has been developed and simulated by FEM method (ANSYS). The ion focusing device consists of two electrodes with progressively smaller internal diameters to which electric potential are applied. Taguchi DOE has been used in the optimization process of the structures and critical dimensions for the device. Postprocessing has been implemented by Kriging interpolation method. The shapes of equipotential lines are measured to obtain the response for Taguchi DOE by CAD software. The significance of each factor and optimized structure has been obtained by signal-to-noise (S/N) ratio and means variance analysis. The simulation results will provide good reference for experiments.
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M. S., Ranganath, i Vipin V. "Optimization of Process Parameters in Turning Operation Using Taguchi Method and Anova: A Review". International Journal of Advance Research and Innovation 1, nr 1 (2013): 42–56. http://dx.doi.org/10.51976/ijari.111306.
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This paper investigates the parameters affecting the roughness of surfaces produced in the turning process for the various materials studied by researchers. Design of experiments were conducted for the analysis of the influence of the turning parameters such as cutting speed, feed rate and depth of cut on the surface roughness. The results of the machining experiments were used to characterize the main factors affecting surface roughness by the Analysis of Variance (ANOVA) method Taguchi‟s parametric design is the effective tool for robust design it offers a simple and systematic qualitative optimal design to a relatively low cost. The Taguchi method of off-line (Engineering) quality control encompasses all stages of product/process development. However the key element for achieving high quality at low cost is Design of Experiments (DOE). In this paper Taguchi‟s (DOE) approach used by many researchers to analyze the effect of process parameters like cutting speed, feed, and depth of cut on Surface Roughness and to obtain an optimal setting of these parameters that may result in good surface finish, has been discussed.
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Hernadewita, Hernadewita, I. Rochmad, Hendra Hendra, Hermiyetti Hermiyetti i E. N. S. Yuliani. "An analysis of implementation of Taguchi method to improve production of pulp on hydrapulper milling". International Journal of Production Management and Engineering 7, nr 2 (31.07.2019): 125. http://dx.doi.org/10.4995/ijpme.2019.10163.
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<div><p class="TtuloAbstract">Abstract: Taguchi method is one of a design of experimental (DOE), by using statistical approach to optimize the process parameters and maintaining the minimum variability and also improve the quality of product. Based on data characterisation, Nominal is Best in Taguchi methods is suitable application in this study. Its describe the procedures and steps that occur in DOE to find an optimum quality parameter corresponding quality characterisation. Nominal is the best applied in milling process of pulp on the hydrapulper with pulp freeness 650 Canadian Standard Freeness (CSF). The result is shown by orthogonal array, Signal-to-Noise (S/N) Ratio and analysis of variances (ANOVA). Three factors cosidered in this study and namely the composition of pulp (waste paper), pulp consistency and milling time. The experiment will conducted after determination of each level and the appropriate orthogonal array was selected. After measuring of pulp freeness produced by the pulp milling on the hydrapulper, then Signal-to-Noise (S/N) Ratio is calculated. As the conclussion, the factors and levels of optimum freeness obtained, pulp composition in level 1 (100%), pulp consistency at level 2 (8%) and milling time factor in level 2 (45 minutes). The result of experimental verification was interpreted in the conclusion.</p></div><p class="Abstract"><strong>Keywords:</strong> Taguchi; DOE; pulp; hydrapulper; Nominal is the Best; ANOVA</p>
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Aizuddin, Z. A. Z., B. A. Aminudin, P. S. Sanda i R. M. S. Zetty. "Resistance Spot Welding Process Optimization Using Taguchi Robust Method for Joining Dissimilar Material". Applied Mechanics and Materials 835 (maj 2016): 248–53. http://dx.doi.org/10.4028/www.scientific.net/amm.835.248.
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Steel sheet joining were dominantly by resistance spot welding (RSW) method. It is the most implemented in automotive mass production in which the heat is applied to the materials. Joining different material with different properties is a challenge. Thicker material needs more current and time. Meanwhile, the thinner material may burn and weaken if the excessive parameters apply. The purpose of this study is to identify the optimum spot weld parameters for joining dissimilar materials with different thickness that involve high tensile strength steel and low carbon steel in the automotive application. In this study, weld parameters with varying electrode forces, welding currents, and welding times are analyzed by applying a Taguchi robust method for the design of experiment (DOE). The L9 orthogonal array has been chosen due to the particular material specimen and time constraint. In the analysis, the higher value of signal-to-noise (S/N) ratio indicates the good responses of testing parameter when the level changed. Base of the plotted S/N ratio graph for each factor, Taguchi robust method has suggested that A3 (5000V), B3 (25 cycle), and C2 (150N) as the optimum weld parameters. The confirmation test afterward, finally proved that the Taguchi robust method was a liable DOE method and has been successfully optimized the spot weld parameters.
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Fotovvati, Behzad, Madhusudhanan Balasubramanian i Ebrahim Asadi. "Modeling and Optimization Approaches of Laser-Based Powder-Bed Fusion Process for Ti-6Al-4V Alloy". Coatings 10, nr 11 (18.11.2020): 1104. http://dx.doi.org/10.3390/coatings10111104.
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Laser-based powder-bed fusion (L-PBF) is a widely used additive manufacturing technology that contains several variables (processing parameters), which makes it challenging to correlate them with the desired properties (responses) when optimizing the responses. In this study, the influence of the five most influential L-PBF processing parameters of Ti-6Al-4V alloy—laser power, scanning speed, hatch spacing, layer thickness, and stripe width—on the relative density, microhardness, and various line and surface roughness parameters for the top, upskin, and downskin surfaces are thoroughly investigated. Two design of experiment (DoE) methods, including Taguchi L25 orthogonal arrays and fractional factorial DoE for the response surface method (RSM), are employed to account for the five L-PBF processing parameters at five levels each. The significance and contribution of the individual processing parameters on each response are analyzed using the Taguchi method. Then, the simultaneous contribution of two processing parameters on various responses is presented using RSM quadratic modeling. A multi-objective RSM model is developed to optimize the L-PBF processing parameters considering all the responses with equal weights. Furthermore, an artificial neural network (ANN) model is designed and trained based on the samples used for the Taguchi method and validated based on the samples used for the RSM. The Taguchi, RSM, and ANN models are used to predict the responses of unseen data. The results show that with the same amount of available experimental data, the proposed ANN model can most accurately predict the response of various properties of L-PBF components.
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Vishal Kaushik i Naren Shankar. "Statistical Analysis using Taguchi Method for Designing a Robust Wind Turbine". Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 100, nr 3 (31.12.2022): 92–105. http://dx.doi.org/10.37934/arfmts.100.3.92105.
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The current paper presents the tolerance and parameter design for robust wind turbine. By utilizing the traditional Taguchi method along with its extensions, there is a way of designing a robust wind turbine by considering multiple objectives, constraints and design variables. The concept of design of experiment (DOE) i.e.; Taguchi Method is used to evaluate the constrained and unconstrained problems for the optimization. The current work produces an inexpensive and simpler approach for robust vertical axis wind turbine. DOE (Taguchi Method) of L-9 Orthogonal Array having four parameters along with their three levels i.e; type of NACA aerofoil, Reynolds number, Mach number and Angle of attack are utilized for the optimization and to derive the corresponding optimal values of CL, CD and CP. The parameters like coefficient of lift, drag and power for the wind turbine was determined by Q-Blade software, which is use for designing of wind turbine blades. From the obtained results the inferences drawn were: for CL the major impact was due to Reynolds number and least was due to angle of attack, for CD the major and minor impacting factors were angle of attack and Mach number respectively and for CP the most and least influenced parameters were Reynolds number and Mach number respectively. Also, for obtaining the optimized parameters, the Grey based Taguchi method was utilized which has the combination of orthogonal arrays and grey relational analysis. The analysis showed that the NACA0021 has the maximum lift coefficient of 1.0361 and the minimum drag coefficient of 0.02190 in the case of NACA0021 aerofoil.
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Lokhande, Pravin R., Sachin S. Salunkhe i Sethuraman Balaguru. "Numerical simulation and experimentation of endodontic file using Taguchi DoE". International Journal for Simulation and Multidisciplinary Design Optimization 12 (2021): 32. http://dx.doi.org/10.1051/smdo/2021032.
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The endodontic file is a tapered, needle shape body used for the preparation of curved human root canals. During the preparation, process files get failed due to the locking action offered by the canal wall. The present study aimed to find the fatigue life of endodontic files at 23°, 33° and 43° root canal curvature angles. Four brands of files were selected for the present study viz. Hyplex CM, Pro-Taper Next, Hero Shaper, Pro-File Vortex. The strain life analysis done using ANSYS showed that the Hyplex CM file gives the highest fatigue life at 23°, 33° and 43° root canal curvature angles. Therefore, Hyplex CM file was selected for DoE Taguchi Optimization study. Each experimental reading was conducted on X Smart Plus experimental setup under purely rotary and combined reciprocating-rotary motion, at 500 rpm, 600 rpm and 700 rpm and 23°, 33° and 43° root canal curvature angles. Hyplex CM file given maximum fatigue life at 23° root canal curvature angle and 500 rpm speed of rotation. But if file motion is combined rotary-reciprocating, life reduces. The ANNOVA study showed that P-value and significance F are very small, which represented that the regression model is effective.
Rozprawy doktorskie na temat "TAGUCHI DOE"
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Caballero, Terrazas Luis Eduardo, i Vélez Fátima Milagros Pescoran. "Aplicación de herramientas Lean Manufacturing y DOE-Taguchi en una empresa de plásticos peruana". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/655123.
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La industria de plásticos se encuentra en un crecimiento progresivo a comparación de otros sectores, ya que la gran mayoría de las empresas tienen procesos automatizados. Es por esto que las empresas del sector se vuelven más competitivas cada día. Esta investigación se realiza en una empresa peruana en la que se detecta como problema principal la alta tasa de productos defectuosos, que impacta a su vez negativamente en un 4.37% del costo fabricación. Por ello y en base a diversos estudios sobre la implementación de herramientas y metodologías de solución y mejora, se propone la implementación de un modelo basado en la filosofía Lean Manufacturing con el método Taguchi para la reducción de estos, obteniendo como resultado un decremento del 60.41% en la tasa de defectos. Si bien el objetivo del proyecto es posicionar la empresa dentro del porcentaje estándar, se logra estar por debajo de este.The plastics industry is in progressive growth compared to other sectors since the vast majority of companies have automated processes. This is why the companies in the sector become more competitive every day. This investigation is carried out in a Peruvian company in which the high rate of defective products is detected as the main problem, which in turn negatively impacts 4.37% of the manufacturing cost. For this reason and based on various studies on the implementation of tools and methodologies for solution and improvement, the implementation of a model based on the Lean Manufacturing philosophy with the Taguchi method is proposed to reduce these, resulting in a decrease of 60.41 % in defect rate. Although the objective of the project is to position the company within the standard percentage, it is possible to be below this.
Trabajo de investigación
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Rodrigues, Luis Maria Mota. "Aplicação dos métodos de Taguchi e estudo da capacidade do processo: caso de estudo na indústria automóvel". Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/12087.
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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia MecânicaA complexidade do processo de encapsulamento de resinas epoxy em ignições, e o apertado controlo da qualidade, exige o desenvolvimento e o melhoramento contínuo dos processos de fabrico de forma a satisfazer as exigências dos clientes e a perpetuar a confiança que depositam na Delphi do Seixal. A insdústria automóvel, a par da indústria aeronáutica, adoptaram a filosofia 6 sigma para o controlo dos processos de fabrico de modo a maximizar a segurança dos consumidores e a qualidade do produto final ao mesmo tempo que se minimiza o número de produtos não conformes, por milhão de unidades produzidas, o que obriga a utilização de ferramentas de controlo estatístico e de melhoramento contínuo. O recurso a ferramentas estatísticas e metodologias desenvolvidas por especialistas na matéria, permite uma análise metódica, científica e eficiente, do processo, poupando tempo e dinheiro aos engenheiros que as aplicarem com sabedoria e humildade. O Controlo Estatístico do Processo, SPC, está presente na politica de qualidade da Delphi, no entanto, o método de experimentação contínua a ser feito numa base intuitiva, seguindo uma filosofia de “Tentativa-Erro”, cujo resultado nem sempre é rápido e satisfatório. Fatores-chave, como a estequiometria das reações químicas da resina com o endurecedor e o perfil de cura em função do tempo e temperatura, tornam o processo altamente sensível a variações provocadas por agentes externos, que podem comprometer a qualidade final do produto, o que motiva a introdução de ferramentas robustas em todas as etapas de desenvolvimento e controlo do processo. A carteira de clientes da Delphi Seixal, no campo das ignições, conta com marcas de renome, como é o exemplo da General-Motors, Mercedes-Benz, BMW, grupo PSA, entre outros. O aumento dos volumes de fabrico, torna por vezes necessária, a instalação de novas linhas de produção, que necessitam de ser certificadas para produzir de acordo com os padrões de qualidade da Delphi e critérios do cliente, exigindo a realização de um estudo rigoroso onde são definidos os parâmetros de processo e avaliada a sua capacidade. Este trabalho procura definir a melhor combinação de fatores controláveis que aumentam a robustez do processo, através do desenho de experiências de Genichi Taguchi, e verificar se os equipamentos se encontram aptos para produzir segundo os critérios de qualidade da Delphi (Cartas de controlo de Walter A. Shewhart).
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Hizli, Cem. "Thermal Optimization of Veo+ Projectors (thesis work at Optea AB) : Trying to reduce noise of the Veo+ projector by DOE (Design of Experiment) tests to find anoptimal solution for the fan algorithm while considering the thermal specifics of the unit". Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-10382.
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The Veo+ projector is using a cooling system that consists of fan and blowers. This system is cooling the electronic components of the device and the lamp of the projector, however extracting a high noise. To lower this noise the rpm speeds (rotational speed) of the fan and blowers should be decreased. Thus, lowering the speed will result in higher temperature values in whole system (inside the device). While lowering the speed, the higher temperature values should be kept within the thermal design specifications of the electronic components. The purpose of this thesis work is to find an optimal solution with lower rpm speeds of the fan and blowers while keeping the temperatures of the various components of the device (touch temperature of the enclosure and electronic components) within the temperature design limits. Before testing the device to find the optimum state, the design limits of the device are determined. Then, by using the design of experiment methods like Taguchi, the optimum state for the device within the design specifications is obtained. Finally, additional tests are applied within the optimum state to demonstrate a fan algorithm as a final solution. While doing the experiments thermocouples are used for measuring the component temperatures.
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Amanna, Ashwin Earl. "Statistical Experimental Design Framework for Cognitive Radio". Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/77331.
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This dissertation presents an empirical approach to identifying decisions for adapting cognitive radio parameters with no a priori knowledge of the environment. Cognitively inspired radios, attempt to combine observed metrics of system performance with artificial intelligence decision-making algorithms. Current architectures trend towards hybrid combinations of heuristics, such as genetic algorithms (GA) and experiential methods, such as case-based reasoning (CBR). A weakness in the GA is its reliance on limited mathematical models for estimating bit error rate, packet error rate, throughput, and signal-to-noise ratio. The CBR approach is similarly limited by its dependency on past experiences. Both methods have potential to suffer in environments not previously encountered. In contrast, the statistical methods identify performance estimation models based on exercising defined experimental designs. This represents an experiential decision-making process formed in the present rather than the past. There are three core contributions from this empirical framework: 1) it enables a new approach to decision making based on empirical estimation models of system performance, 2) it provides a systematic method for initializing cognitive engine configuration parameters, and 3) it facilitates deeper understanding of system behavior by quantifying parameter significance, and interaction effects. Ultimately, this understanding enables simplification of system models by identifying insignificant parameters. This dissertation defines an abstract framework that enables application of statistical approaches to cognitive radio systems regardless of its platform or application space. Specifically, it assesses factorial design of experiments and response surface methodology (RSM) to an over-the-air wireless radio link. Results are compared to a benchmark GA cognitive engine. The framework is then used for identifying software-defined radio initialization settings. Taguchi designs, a related statistical method, are implemented to identify initialization settings of a GA.Ph. D.
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Santos, Sousa Mayko Rannany. "Optimization of Operation Parameters in Ultrafiltration by Experiment Design, Mathematical Modelling and Fouling Characterization of the Membranes Used to Remove Dissolved and Colloidal Substances from a Treated Paper Mill Effluent". Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/155975.
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[ES] En la presente Tesis Doctoral se investigó la aplicación del proceso de ultrafiltración (UF) y el fenómeno de ensuciamiento de las membranas en la eliminación de sustancias disueltas y coloidales (DCS) de efluentes tratados de la industria papelera (PMTE) para su reutilización en los diferentes procesos de fabricación de papel y cartón reciclado. El objetivo general de esta investigación se dividió en tres partes principales: i) describe cómo encontrar las condiciones óptimas de operación de cuatro parámetros de proceso: presión transmembrana (TMP), velocidad de flujo cruzado (CFV), temperatura y corte de peso molecular (MWCO) para maximizar el flujo promedio de permeado (Jp) y rechazo de la demanda química de oxígeno (COD) y minimizar el descenso del flujo de permeado acumulado (SFD) utilizando el método de Taguchi (Design Robusto) y utility concept aplicado a un proceso de UF a flujo cruzado, para remover DCS de efluentes tratados de la industria papelera, ii) el descenso del flujo de permeado y los mecanismos de ensuciamiento de las membranas de UF ensuciadas con PMTE se examinaron mediante modelos matemáticos semi-empíricos. Los resultados para los diferentes ensayos de UF se expresaron en términos de variación del Jp en función del tiempo para verificar la precisión del ajuste (mayor valor de R2 y menor valor de desviación estándar) de los distintos modelos de Hermia adaptados a flujo tangencial y del modelo de formación de torta en filtración a presión constante ajustados a los datos experimentales, y iii) describe métodos de identificación, caracterización y posibles orígenes de las sustancias contaminantes (foulants) en las membranas de UF. Técnicas como el análisis físico-química, FESEM, SEM-EDS, ATR-FTIR y 3DEEM se llevaron a cabo para comprender qué fracción de los contaminantes son responsables por la formación de incrustaciones en las membranas. Los resultados obtenidos durante la etapa de optimización de parámetros del procesos demostraron que TMP y MWCO tienen la mayor contribución en el Jp y SFD. En el caso de la tasa de rechazo de COD, los resultados mostraron que MWCO tiene la mayor contribución seguida de CFV. Por consiguiente, las condiciones óptimas se encontraron para el segundo nivel de TMP (2.0 bar), el tercer nivel del CFV (1.041 m/s), el segundo nivel de la temperatura (15°C) y el tercer nivel de MWCO (100 kDa). Bajo estas condiciones óptimas de operación Jp, rechazo de COD y SFD alcanzaron respuestas de 81.15 L/m2.h, 43.90% y 6.01 (alrededor de 28.96 % para (FD), respectivamente, valores dentro del rango previsto del intervalo de confianza del 95%. Además, los modelos de Hermia adaptados a UF en flujo tangencial fueron capaces de predecir con gran precisión el descenso del Jp y los mecanismos de ensuciamiento en función del tiempo para todas las membranas seleccionadas (10, 30 y 100 kDa) y bajo diferentes condiciones ensayadas de UF. Por lo tanto, los modelos que presentan un mayor grado de ajuste son el bloqueo completo de poros (coeficiente de determinación R2 >0.97) y bloqueo intermedio (R2 >0.96), seguido por el modelo de formación de torta (R2 >0.94), lo que indica que estés son los principales mecanismos de ensuciamiento de las membranas. Análisis de 3DEEM revelaron que la mayoría de la materia orgánica fluorescentes en las membranas sucias eran proteínas coloidales (componentes similares a proteínas I + II) y proteínas macromoleculares (componentes similares a SMP). Además, polisacáridos (especie celulósica) y sustancias como ácidos grasos y resinosos fueron identificadas en las membranas contaminadas mediante análisis ATR-FTIR. Por fin, análisis SEM-EDS para las membranas ensuciadas con PMTE se detectó concentración de contaminantes inorgánicos (iones metálicos multivalentes) especialmente el Ca2+ que podría acelerar la formación torta en la superficie de la membrana.[CA] En la present Tesi Doctoral es va investigar l'aplicació del procés d'ultrafiltració (UF) i el fenomen d'embrutiment de les membranes en l'eliminació de substàncies dissoltes i col·loïdals (DCS) d'efluents tractats de la indústria paperera (PMTE) per al seu reutilització en els diferents processos de fabricació de paper i cartó reciclatge. L'objectiu general d'aquesta investigació es va dividir en tres parts principals: i) descriu com trobar les condicions òptimes d'operació de quatre paràmetres de procés: pressió transmembrana (TMP), velocitat de flux creuat (CFV), temperatura i tall de pes molecular (MWCO) per a maximitzar el flux mitjà de permeat (Jp) i rebuig de la demanda química d'oxigen (COD) i minimitzar el descens del flux de permeado acumulat (SFD) utilitzant el mètode de Taguchi (Design Robust) i utility concept aplicat a un procés de UF a flux creuat en escala pilot, per a remoure DCS d'efluents tractats de la indústria paperera (PMTE), ii) el descens del flux de permeat i els mecanismes de embrutiment (fouling) de les membranes de UF embrutades amb PMTE es van examinar mitjançant models matemàtics semi-empírics. Els resultats per als diferents assajos de UF es van expressar en termes de variació del flux de permeat (Jp) en funció del temps per a verificar la precisió de l'ajust (major valor de R2 i menor valor de desviació estàndard) dels diferents models de Hermia adaptats a flux tangencial i del model de formació de coca en filtració a pressió constant ajustats a les dades experimentals, i iii) descriu mètodes d'identificació, caracterització i possibles orígens de les substàncies contaminants (foulants) en les membranes de UF. Tècniques com l'anàlisi física-química, FESEM, SEM-EDS, ATR-FTIR i 3DEEM es van dur a terme per a comprendre quina fracció dels contaminants són responsables per la formació d'incrustacions sobre la superfície i adsorció dins dels porus de les membranes. Els resultats obtinguts durant l'etapa d'optimització de paràmetres del processos van demostrar que TMP i MWCO tenen la major contribució en el Jp i SFD. En el cas de la taxa de rebuig de COD, els resultats van mostrar que MWCO té la major contribució seguida de CFV. Per consegüent, les condicions òptimes es van trobar per al segon nivell de TMP (2.0 bar), el tercer nivell del CFV (1.041 m/s), el segon nivell de la temperatura (15°C) i el tercer nivell de MWCO (100 kDa). Sota aquestes condicions òptimes d'operació Jp, rebuig de COD i SFD van aconseguir respostes de 81.15 L/m².h, 43.90% i 6.01 (al voltant de 28.96% per a (FD)), respectivament, valors dins del rang previst de l'interval de confiança del 95%. A més, els models de Hermia adaptats a UF en flux tangencial van ser capaços de predir amb gran precisió el descens del Jp i els mecanismes de embrutiment en funció del temps per a totes les membranes seleccionades (10, 30 i 100 kDa) i baix diferents condicions assajades de UF. Per tant, els models que presenten un major grau d'ajust són el bloqueig complet de porus (coeficient de determinació R2 >0.97) i bloqueig intermedi (R2 >0.96), seguit pel model de formació de coca (R2 >0.94), la qual cosa indica que estigues són els principals mecanismes de embrutiment de les membranes. Anàlisi de 3DEEM van revelar que la majoria de la matèria orgànica fluorescents en les membranes brutes eren proteïnes col·loidals (components similars a proteïnes I + II) i proteïnes macromoleculars (components similars a SMP). A més, polisacàrids (espècie cel·lulòsica) i substàncies com a àcids grassos i resinosos van ser identificades en les membranes contaminades mitjançant anàlisis ATR-FTIR, tals substàncies exerceixen un paper important en el embrutiment de les membranes. Per fi, anàlisi SEM-EDS per a les membranes embrutades amb PMTE es va detectar concentració de contaminants inorgànics (ions metàl·lics multivalents) especialment el Ca2+ que podria accelerar la formació coca en la àrea de la membrana.
[EN] In this PhD Thesis, the application of ultrafiltration process (UF) and membrane fouling phenomenon used to remove dissolved and colloidal substances (DCS) from paper mill treated effluent (PMTE) for reuse in different recycled paper and cardboard manufacturing processes was investigated. The overall goal of this research has been divided into three main parts: i) describes how to find optimal operating conditions of four controlling parameters, such as transmembrane pressure (TMP), cross-flow velocity (CFV), temperature and molecular weight cut-off (MWCO) for maximizing the average permeate flux (Jp) and chemical oxygen demand (COD) rejection, and minimizing the cumulative flux decline (SFD) using Taguchi method and utility concept for a cross-flow UF in pilot scale, used to remove DCS from a paper mill treated effluent (PMTE), ii) flux decline and fouling mechanisms of UF membranes fouled with PMTE were examined by theoretical modelling. The results from UF tests were expressed in terms of permeate flux (Jp) as a function of time to check modified Hermia's models adapted to crossflow filtration and cake formation in constant-pressure filtration, and iii) describes the Identification, characterization and possible origins of UF membrane foulants. Techniques such as chemical analysis, FESEM, SEM-EDS, ATR-FTIR and 3DEEM analysis were applied to understand which fraction of the foulants caused the fouling. This research found that the TMP and MWCO have the greatest contribution to the average permeate flux and SFD. In the case of the COD rejection rate, the results showed that MWCO has the highest contribution followed by CFV. The optimum conditions were found to be the second level of TMP (2.0 bar), the third level of the CFV (1.041 m/s), the second level of the temperature (15°C), and the third level of MWCO (100 kDa). Under these optimum conditions Jp, COD rejection and SFD resistance of 81.15 L/m2/h, 43.90% and 6.01 (around 28.96 % of (FD), respectively, were obtained and they were within of the predicted range at the 95% confidence interval. Furthermore, the results showed that the predictions of the modified Hermia's models adapted to cross-flow UF had good agreements with experimental data, under different conditions tested for PMTE. Therefore, it can be concluded that for all cases the best fit (higher accuracy) to the experimental data corresponds to the complete (coefficient of determination R2 >0.97) and intermediate (R2 >0.96) blocking, followed by the cake layer formation (R2 >0.94). Moreover, measurements of particle size distribution and zeta potential near the isoelectric point, showed a substantial reduction in colloidal compounds. The 3DEEM analysis revealed that the majority of the organic foulants with fluorescence characteristics on the fouled membranes were colloidal proteins (protein-like substances I+II) and macromolecular proteins (SMP-like substances). Further, polysaccharide (cellulosic specie), fatty and resin acid substances were identified on the fouled membrane by the ATR-FTIR analysis and they play an important role in membrane fouling. In addition, the membrane SEM-EDS analysis showed accumulate and adsorbed onto the membrane surfaces of inorganic foulants, such as multivalent metal ions and especially Ca2+ (acts as a binding agent) that could accelerate cake layer formation on the membrane.
Santos Sousa, MR. (2020). Optimization of Operation Parameters in Ultrafiltration by Experiment Design, Mathematical Modelling and Fouling Characterization of the Membranes Used to Remove Dissolved and Colloidal Substances from a Treated Paper Mill Effluent [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/155975
TESIS
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Laiate, Juliana. "Estudo do processo de cultivo da microalga chlorella minutíssima e caracterização termoquímica de sua biomassa para aplicação em gaseificação". Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/157246.
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Outra
O interesse na diversificação da matriz energética por meio de fontes de energias renováveis tem promovido mudanças no âmbito nacional e internacional, em setores acadêmicos, industriais, sociais e governamentais com foco no desenvolvimento de processos biotecnológicos baseados nos três pilares da sustentabilidade: ambiental, social e econômico. Frente a esse contexto, as microalgas são consideradas uma fonte promissora alternativa para a produção de biocombustíveis por apresentarem alta taxa de crescimento e de concentração de lipídeos. O presente trabalho realizou um estudo do processo de cultivo da microalga marinha Chlorella minutíssima por meio da ferramenta DOE – Design of Experiments para maximização da sua concentração microalgal e do teor lipídico simultaneamente, além de sua caracterização termoquímica para aplicação no processo de gaseificação. O cultivo ocorreu em fotobiorreator tubular descontínuo do tipo coluna de bolhas seguindo o arranjo ortogonal L8 de Taguchi, e as variáveis de processo foram fluxo de CO2 na alimentação, concentração de nitrato, concentração de fosfato, suplementação, temperatura e salinidade. A investigação demonstrou que a concentração de nitrato e fosfato, o fluxo de gás carbônico, a suplementação do meio e a temperatura são fatores influentes na concentração microalgal e no teor lipídico, sendo a melhor configuração para maximização conjunta, utilizando-se a função desirability, com o nitrato operando em nível alto e os demais fatores em nível baixo. A análise elementar forneceu teores condizentes com alguns relatos da literatura, a termogravimetria auxiliou na identificação das faixas de temperatura com maior taxa de decomposição (300 °C a 400 °C), e o poder calorífico superior da biomassa encontrado se demonstrou atrativo para a produção de syngas quando comparado ao de materiais como casca de arroz e lascas de eucalipto já empregados na gaseificação em maior escala. Dessa forma, a metodologia empregada e os resultados apresentados neste trabalho podem auxiliar na busca da viabilização econômica do cultivo, em grande escala, da microalga marinha Chlorella minutíssima para produção de biocombustível pelo processo de gaseificação.
The interest in diversifying the energy matrix through renewable energy sources has promoted changes at the national and international levels in academic, industrial, social and governmental sectors, focused on the development of biotechnological processes based on the three pillars of sustainability: environmental, social and economic. In this context, microalgae are considered a strong promising alternative source for the production of biofuels due to their high rate of growth and lipid concentration. The present work carried out a study of the cultivation process of the marine microalgae Chlorella minutíssima using DOE – Design of Experiments to maximize the cell growth and the lipid content simultaneously, besides its thermochemical characterization for application in the gasification process. Cultivation occurred in a discontinuous-tubular photobioreactor, bubble-column type, following Taguchi L8 Orthogonal Array design, and the process variables were: CO2 feed flow rate, nitrate concentration, phosphate concentration, supplementation (metals and vitamins), temperature and salinity. Results showed that the nitrate and phosphate concentration, CO2 feed flow, supplements and temperature are influential factors in the cell growth and lipid content, and the best configuration presenting good results for simultaneous maximization, using desirability, was nitrate operating at high level and the other factors at low level. Ultimate analysis provided levels consistent with some reports in the literature. Thermogravimetric analysis identified the temperature ranges with the highest decomposition rate (300 °C to 400 °C). The higher heating value of the biomass found was attractive for the production of syngas when compared to raw materials such as rice husk and eucalyptus chips already used in the larger scale gasification. In face of, the methodology employed and the results presented in this work can be useful in seeking economic feasibility of the large-scale cultivation of Chlorella minutíssima for the production of biofuels by the gasification process.
PRH48 - ANP
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Yurtseven, Saygin. "Analysis Of The Influence Of Non-machining Process Parameters On Product Quality By Experimental Design And Statistical Analysis". Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1026863/index.pdf.
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This thesis illustrates analysis of the influence of the non-machining processes on product quality by experimental design and statistical analysis. For the analysis objectivedishwasher production in Arcelik Dishwasher plant is examined. Sheet metal forming processes of dishwasher production constitutes the greatest portion of production cost and using the Pareto analysis technique
four pieces among twenty six pieces are determined to be investigated. These four pieces are the U Sheet, L Sheet, Inner Door and Side Panel of the dishwasher. By the help of the flow diagrams production process of the determined pieces are defined. Brainstorming technique and cause&
effect diagrams are used to determine which non-machining process parameters can cause pieces to be scrapped. These parameters are used as control factors in experimental design. Taguchi&
#8217
s L16(215) orthogonal array, Taguchi&
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s L16(215) orthogonal array using S/N transformation and 28-4 fractional factorial design are used on purpose. With repetitions and confirmation experiments the effective parameters are determined and optimum level of these parameters are defined for the improvements on scrap quantity and quality of production.
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Barros, Pablo Aronne Funchal de. "Influência do defeito tipo cunha no comportamento mecânico de juntas de liga de alumínio 2198 soldadas por fricção por ponto (FSpW)". Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7357.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
One of the main considerations in selecting materials to manufacture aircraft structures is related to weight saving [1]. In this context, the promising aluminum-lithium alloys have been receiving special attention in aerospace applications due to its attractive combination of low density, high specific strength and corrosion resistance [2-5]. Due to difficulties joining these alloys by conventional welding processes associated to their high thermal conductivity and low melting temperature, solid-state joining technologies emerge as great possibilities to simultaneously solve problems of solidification defects and increasing weight. The feasibility of Friction Spot Welding (FSpW) in joining sheets of lightweight material (e.g. aluminum alloys) places this technology as a potential replacement to the spot-like joint processes, as resistance spot welding (RSW) and laser spot welding (LSW), for application in automotive and aerospace industries [6-8]. In this work, the influence of hook defect on the lap shear strength (LSS) of AA2198-T8 friction spot welds was studied. The effects of process parameters was evaluated in terms of LSS and related to the microstructural configurations. The values of hook length measurements and the LSS were used as response in optimization process developed using the statistical tool of DoE technique with Taguchi Method. Finally it was possible to compare the hook behavior with lap shear strength results. The higher influence on the weld performance was exerted by plunge depth whereas rotational speed was found to be a less significant parameter. Through the minimization of the hook defect, a beneficial response on the weld performance was observed, which was associated to the absence of a potential site for crack nucleation. In spite of inherent discontinuities, promising results were found for aluminum joints for aerospace applications.
Uma das principais considerações na seleção de materiais para a fabricação de estruturas de aeronaves está relacionada à redução de peso [1]. Neste contexto, ligas de alumínio-lítio têm se destacado em aplicações aeroespaciais devido à sua atraente combinação de propriedades como baixa densidade, alta resistência específica e resistência à corrosão [2-5]. Devido às dificuldades para união destas ligas por processos convencionais de soldagem associadas às altas condutividades térmicas e baixas temperaturas de fusão, tecnologias de soldagem no estado sólido emergem com grande potencial para simultaneamente reduzir os defeitos de solidificação e aumento de peso. A viabilidade da Soldagem por Fricção por Ponto (do inglês – Friction Spot Welding – FSpW) para unir chapas de materiais leves posiciona esta tecnologia como potencial substituta para os processos de união por ponto, como soldagem por resistência (RSW) e soldagem a laser (LSW), para aplicação nas indústrias automotiva e aeroespacial [6-8]. O presente trabalho visou estudar a influência do defeito de cunha na resistência ao cisalhamento (RC) das juntas da liga de alumínio 2198-T8 fabricadas por FSpW. O efeito dos parâmetros de processo foi avaliado em relação à RC e relacionado com as configurações microestruturais. Os valores de comprimento de cunha e RC foram utilizados como resposta no processo de otimização desenvolvido utilizando-se a ferramenta estatística de planejamento de experimentos com o Método de Taguchi. Por fim, foi possível comparar o comportamento da cunha com os resultados de RC. A maior influência sobre o desempenho de solda foi exercida pela profundidade de penetração enquanto a velocidade de rotação foi um parâmetro menos significativo. Com a minimização da cunha obteve-se uma resposta benéfica no desempenho de solda, o que foi associado à ausência de uma região potencial para a nucleação de trincas. Apesar de descontinuidades inerentes, resultados promissores foram encontrados para juntas de alumínio para aplicações aeroespaciais.
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Prates, Gláucia Aparecida. "Ecodesign utilizando QFD, métodos Taguchi e DFE". Florianópolis, SC, 1998. http://repositorio.ufsc.br/xmlui/handle/123456789/77653.
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Viana, Denilson José. "Aplicação do método de Taguchi para redução de porosidade de peças fundidas sob pressão". Universidade de Taubaté, 2012. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=565.
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O processo de fundição sob pressão de alumínio tem se desenvolvido significativamente nas últimas décadas, ocupando um lugar de destaque na indústria por produzir componentes de engenharia inovadora. Dentre os problemas de qualidade deste processo, o mais recorrente é a porosidade causada por vários fatores, dentre eles os parâmetros do processo que são de difícil determinação, sendo comumente selecionados por meio da abordagem de tentativa e erro. A presente dissertação buscou responder a pergunta: Como determinar a melhor configuração de parâmetros do processo de fundição sob pressão de alumínio para minimizar a porosidade nas peças produzidas? Tendo como objetivo a melhoria da qualidade de uma peça de alumínio, fundida sob pressão, por meio da redução da porosidade. A principal contribuição desta dissertação concentra-se na aplicação do método de Taguchi utilizando dados categóricos ordinais (classes de porosidades) como característica de qualidade, por meio da análise da relação sinal-ruído ponderada. Os resultados dos experimentos foram analisados a partir do efeito médio dos fatores e da análise de variância (ANOVA). Como conclusão os parâmetros de temperatura do metal e velocidade de primeira e segunda fase de injeção foram os mais significativos na redução da porosidade da peça estudada. E ainda, o método de Taguchi alcançou o resultado esperado, trazendo significativa redução de porosidade na peça estudada por meio da otimização dos parâmetros do processo.The aluminum die casting process has developed significantly in recent decades, occupying a prominent place for producing innovative engineering components. Among quality problems of this process is porosity due to several factors, including the process parameters that are difficult to determine, and are commonly selected by trial and error approach. This paper sought to answer the question: How to determine the best set of parameters of the aluminum die casting process to minimize porosity in the parts produced? Aiming improving die casting aluminum parts quality through reducing porosity. The main contribution of this paper focuses on the application of Taguchi method using ordinal categorical data (porosity classes) as a quality characteristic, by analyzing the weighted signal-to-noise ratio. The experimental results were analyzed from the average effect of factors and analysis of variance (ANOVA). In conclusion parameters metal temperature and speed of the first and second injection phase were the most significant in reducing the porosity of the part studied. Also, the Taguchi method achieved the expected result, bringing significant reduction of porosity in the part studied by optimizing the process parameters.
Książki na temat "TAGUCHI DOE"
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Rivadossi, Silvia. Sciamani urbani. Venice: Fondazione Università Ca’ Foscari, 2020. http://dx.doi.org/10.30687/978-88-6969-414-1.
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What does it mean to be a ‘shaman’ in present-day Tokyo today? In what way(s) is the role of the shamanic practitioner represented at a popular level? Are certain characteristics emphasised and others downplayed? This book offers an answer to these questions through the analysis of a specific discourse on shamans that emerged in the Japanese metropolitan context between the late 20th century and the first decade of the 21st century, a discourse that the more ‘traditional’ approaches to the study on shamanism do not take into account. In order to better contextualise this specific discourse, the volume opens with a brief historical account of the formation of the academic discourse on shamans. Within the theoretical framework offered by critical discourse analysis and by means of multi-sited ethnographic research, it then weaves together different case studies: three novels by Taguchi Randy, a manga, a TV series and the case of an urban shaman who is mostly active in Tokyo. The main elements emerging from these case studies are explored by situating them in the precise historical and social context within which the discourse has been developed. This shows that the new discourse analysed shares several characteristics with the more ‘traditional’ and accepted discourses on shamanism, while at the same time differing in certain respects. In this work, particular attention is given to how the category and term ‘shaman’ is defined, used and re-negotiated in the Japanese metropolitan context. Through this approach, the book aims to further problematize the categories of ‘shaman’ and ‘shamanism’, by highlighting certain aspects that are not yet accepted by many scholars, even though they constitute a discourse that is relevant and effective.
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Klein, Bernd. Versuchsplanung - DoE: Einführung in Die Taguchi/Shainin-Methodik. de Gruyter GmbH, Walter, 2011.
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Klein, Bernd. Versuchsplanung - DoE: Einführung in Die Taguchi/Shainin-Methodik. de Gruyter GmbH, Walter, 2014.
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Klein, Bernd. Versuchsplanung - DoE: Einführung in Die Taguchi/Shainin-Methodik. de Gruyter GmbH, Walter, 2003.
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Klein, Bernd. Versuchsplanung - DoE: Einführung in Die Taguchi/Shainin-Methodik. de Gruyter GmbH, Walter, 2011.
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Klein, Bernd. Versuchsplanung - DoE: Einführung in Die Taguchi/Shainin-Methodik. de Gruyter GmbH, Walter, 2014.
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Klein, Bernd. Versuchsplanung - DoE: Einführung in Die Taguchi/Shainin-Methodik. de Gruyter GmbH, Walter, 2014.
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Klein, Bernd. Versuchsplanung - Design of Experiments: Einführung in Die Taguchi und Shainin - Methodik. de Gruyter GmbH, Walter, 2021.
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Klein, Bernd. Versuchsplanung - Design of Experiments: Einführung in Die Taguchi und Shainin - Methodik. de Gruyter GmbH, Walter, 2021.
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Klein, Bernd. Versuchsplanung - Design of Experiments: Einführung in Die Taguchi und Shainin - Methodik. de Gruyter GmbH, Walter, 2021.
Znajdź pełny tekst źródłaCzęści książek na temat "TAGUCHI DOE"
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Ashruth Gukan, S., K. Sivaranjani, Avinash V. Nair, K. Nandha i K. Anand. "Bio-inspired Design and Optimization of Motor Body of an Electronic Lock Using Taguchi DOE-FEA-GA Integration Technique". W Materials, Design and Manufacturing for Sustainable Environment, 239–56. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3053-9_20.
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Nguyen, Huu Phan, Tien Long Banh, T. Muthuramalingam, Ngoc Pi Vu, Quang Dung Le, Le Xuan Hung i Dinh Khai Nguyen. "Taguchi Based Process Parameters Optimization in Vibration Assisted Die Sinking Electrical Discharge Machining". W Advances in Engineering Research and Application, 704–9. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37497-6_81.
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Suslu, Yekta Berk, Mehmet Sirac Acar, Mithat Senol, Muammer Mutlu i Ozgul Keles. "Optimization in Novel Partial-Solid High Pressure Aluminum Die Casting by Taguchi Method". W The Minerals, Metals & Materials Series, 293–300. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72284-9_40.
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Vijayakumar, K., T. Sekar i M. Vijay. "Experimental Studies on Material Removal Rate of Die Steel in Electrochemical Micromachining Process Using Taguchi Method". W Recent Advances in Manufacturing, Automation, Design and Energy Technologies, 181–87. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4222-7_21.
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Phan, Nguyen Huu, Nguyen Van Duc, Pham Van Bong, T. Muthuramalingam, Ngoc Pi Vu i Le Xuan Hung. "Multi-responses Optimization of Process Parameters in Die-Sinking EDM Process on SKD11 Steel Using PSI Based Taguchi Method". W Advances in Engineering Research and Application, 493–99. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37497-6_57.
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Kumar, Praveen, i Satpal Sharma. "Study the Effects of Input Process Parameters in V-Bending Die on Springback/Go for Different Aluminium Alloys Using Taguchi Approach". W Lecture Notes on Multidisciplinary Industrial Engineering, 139–52. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9099-0_15.
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Mohanty, S. D., S. S. Mahapatra, R. C. Mohanty, S. K. Khuntia i J. Mohapatra. "A Perceptive Approach for Multi-objective Optimization of Die-Sinking EDM Process Parameters with Utility Concept and Taguchi Method for Sustainable Machining". W Lecture Notes in Mechanical Engineering, 133–41. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9057-0_14.
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Salam, Haipan, i Yu Dong. "Optimisation of Material Formulation and Processing Parameters in Relation to Mechanical Properties of Bioepoxy/Clay Nanocomposites Using Taguchi Design of Experiments (DoEs)". W Bioepoxy/Clay Nanocomposites, 113–44. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-7297-2_4.
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Prajapati, Mehul, i Sowmin Trivedi. "Optimization of CNC Die-Sinking EDM Process Parameters Based on MRR and EWR by Taguchi Method Using Copper Electrode on P20 Tool Steel". W Proceedings of International Conference on Intelligent Manufacturing and Automation, 147–56. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4485-9_16.
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"DoE-Taguchi". W Versuchsplanung – Design of Experiments, 294–95. De Gruyter, 2021. http://dx.doi.org/10.1515/9783110724516-039.
Pełny tekst źródłaStreszczenia konferencji na temat "TAGUCHI DOE"
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Chien, Ching-Shan, Chien-Wen Chien, Yun-Tsung Li i Hsun-Fa Li. "Taguchi DoE for Solder Voids Reduction". W 2018 13th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT). IEEE, 2018. http://dx.doi.org/10.1109/impact.2018.8625744.
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Hsu, Chun-Cheng, Ching-Shan Chien, Tzu-Yin Wei, Yun-Tsung Li i Hsun-Fa Li. "Taguchi DoE for ceramic substrate SMT defects improvement". W 2016 11th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT). IEEE, 2016. http://dx.doi.org/10.1109/impact.2016.7800005.
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Cooner, M. L., R. S. Reynolds i R. Srinivasan. "Application of Taguchi Optimization Techniques to the Combustor Design Process". W ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-413.
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This paper describes the application of Taguchi design of experiments (DOE) methods to the initial development of the T800-LHT-801 growth engine combustor design. The performance of a gas turbine combustor is strongly influenced by the primary zone aerodynamics and stoichiometry. The interactions between fuel spray and airflows through swirlers, primary jets, and dome surface cooling dominate the primary zone characteristics. Development of a robust combustor design requires a good knowledge of the relative sensitivities of these interactions. In this application, the Taguchi DOE method was used to efficiently determine the design parameters driving the combustor performance, while minimizing the number of tests. The improved design configuration resulted in 60 percent reduction in Lean Blow Out (LBO), 140°C reduction in peak wall temperature, and elimination of carbon formation potential at severe operating conditions.
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Ortiz-Rodriguez, J. m., M. r. Martinez-Blanco i H. r. Vega-Carrillo. "Robust Design of Artificial Neural Networks Applying the Taguchi methodology and DoE". W 2006 Electronics, Robotics and Automotive Mechanics Conference. IEEE, 2006. http://dx.doi.org/10.1109/cerma.2006.83.
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Chopra, Nitin, i Mahadevan P. "Bump Steer and Brake Steer Optimization in Steering Linkages Through TAGUCHI Method DOE Analysis". W Symposium on International Automotive Technology. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2021. http://dx.doi.org/10.4271/2021-26-0079.
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Katsari, Christina Maria, Stephen Yue i Andrew Wessman. "Taguchi Design for Heat Treatment of Rene 65 Components". W HT2019. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.ht2019p0337.
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Abstract Rene 65 is a nickel-based superalloy used in aerospace components such as turbine blades and disks. The microstructure in the as received condition of the superalloy consists of ~40% volume fraction of gamma prime precipitates, which gives such a high strength that thermomechanical processing is problematic. The goal of this study was to develop a heat treatment for manufacturing of Rene 65 components by changing the size distribution and volume fraction of those precipitates and lowering the strength. Gamma prime in this alloy is observed in three sizes, ranging from a few μm to tens of nm. For the design of the heat treatments, Design of Experiments (DOE) has been used; more specifically Taguchi’s L8 matrix. The four factors that are examined are cooling rate, hold temperature, hold time and cooling method to room temperature. The levels of the factors were two (high and low) with replication. Microstructures were characterized by Scanning Electron Microscopy and mechanical properties by Vickers microhardness testing.
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Patil, Amit R., i Avinash D. Desai. "Optimization of Engine Performance and Emission for Various n-Butanol Blends at Different Operating Parameter Condition Using MADM Technique". W ASME 2019 Power Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/power2019-1824.
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Abstract In present work, optimization of engine performance and emission were performed for different butanol diesel blends (5–20%) for various engine operating parameter using Taguchi DoE with AHP Optimization Technique. Single cylinder VCR Engine (CI) was fueled with different blend of diesel and butanol and tested for various CR, FIP and FIT at different load conditions (Idle, 1/3, 2/3 and full load). First 3-D interaction plot is drawn to understand the effect of different engine parameter on butanol-diesel blend combustion at different load conditions for NOx and Smoke formation. It’s observed that result vary with changes in operating parameter with different load conditions. Hence to optimize the engine operating parameter setting for correct butanol blend for all load conditions, AHP optimization with Taguchi DoE is performed and it’s found that butanol blend of 15% with CR of 15, FIP of 260bar and FIT of 25°bTDC is optimum combination to get lowest emission with good engine performance. The use of 15% butanol is found most suitable as it gives favorable engine performance and low emission for all test load conditions.
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Feng, Chang-Xue, i Andrew Kusiak. "Design of Tolerances for Quality". W ASME 1994 Design Technical Conferences collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/detc1994-0003.
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Abstract Design of a product (process) includes system design, parameter design, and tolerance design. Robust design is closely applicable to parameter design and tolerance design. The current literature on robust design is focused on parameter design while little attention has been paid to tolerance design. The current literature on tolerance design has focused on the use of optimization to minimize cost while little attention has been paid to minimizing manufacturing variations. This paper attempts to apply a robust design method, the design of experiments (DOE) approach, in tolerance synthesis to minimize manufacturing variations in the probabilistic case. Both, the manufacturing cost and the number of manufacturing defects are minimized in robust tolerance design. A solution procedure is proposed to apply the DOE approach to probabilistic tolerance design. The procedure is illustrated with an example. Special applications of the DOE approach to tolerance design are discussed. A brief comparison of the DOE approach with optimization, Taguchi methods, and zero defect design is presented.
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Paluskar, Prajakta, i Rohit Vaidya. "Taguchi Method (DOE) Based Performance Optimization of a Three Link Rigid Axle Passenger Car Suspension Using MBD Simulations". W SAE 2011 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2011. http://dx.doi.org/10.4271/2011-01-0734.
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Miller, Ronald H., Gary S. Strumolo i Carlos Leon. "A Design of Experiment Using Computation Fluid Dynamics for Spool-Type Hydraulic Valves". W ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2083.
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Abstract In order to compete successfully in the global market place, manufactures must have the ability to produce high-quality, low-cost products that fully satisfy the customer’s needs. Many analytical techniques have been adopted by these manufactures aimed at improving customer and engineering quality. Nonlinear multivariate systems, however, complicate this process making the determination of controlling factors difficult. Often times, improvements in one area of the process or product compromises the performance in other areas. The Design of Experiments (DOE), pioneered by Taguchi, represents a powerful statistical method to help better understand nonlinear systems with the aim to improve quality and performance in engineering. A DOE using Computational Fluid Dynamics (CFD) is developed to better understand the influences of flow forces on valve design and performance. Geometric control factors for the spool valve are determined, enabling optimization and performance improvements.