Bibliografías temáticas / Robust layout

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Literatura académica sobre el tema "Robust layout"

Autor: Grafiati
Publicado: 6 de septiembre de 2023

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Artículos de revistas sobre el tema "Robust layout"

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MELLER, R. D. y K. Y. GAU. "Facility layout objective functions and robust layouts". International Journal of Production Research 34, n.º 10 (octubre de 1996): 2727–42. http://dx.doi.org/10.1080/00207549608905055.

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Vitayasak, Srisatja y Pupong Pongcharoen. "Re-Layout and Robust Machine Layout Design under Stochastic Demand". Applied Mechanics and Materials 789-790 (septiembre de 2015): 1252–57. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.1252.

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In manufacturing business, variability in customer demand over time-periods has led to production flexibility on the shop floor area. Placement of machines in a limited manufacturing area is one of the essential plant designs in material flow between machines. Shortened material handling distance can be considered a key performance index of internal logistic activity in a manufacturing firm. This paper presents the application of the Genetic Algorithm for designing machine layouts that minimise total material handling cost based on demand uncertainty during time-periods. The experimental study was computationally conducted based on two scenarios: re-layout after demand changing; and robust layout (no machine movement even if demand changes). A trade-off between the shortened handling distance and total cost was discussed as being a business decision-making tool.
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Madhusudanan Pillai, V., Irappa Basappa Hunagund y Krishna K. Krishnan. "Design of robust layout for Dynamic Plant Layout Problems". Computers & Industrial Engineering 61, n.º 3 (octubre de 2011): 813–23. http://dx.doi.org/10.1016/j.cie.2011.05.014.

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Hunagund, Irappa Basappa, V. Madhusudanan Pillai y Ujjani Nagegowda Kempaiah. "Design of robust layout for unequal area dynamic facility layout problems with flexible bays structure". Journal of Facilities Management 18, n.º 4 (24 de agosto de 2020): 361–92. http://dx.doi.org/10.1108/jfm-04-2020-0028.

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Purpose The purpose of this paper is to develop a mathematical model for the design of robust layout for unequal area-dynamic facility layout problem with flexible bay structure (UA-DFLP with FBS) and test the suitability of generated robust layout in a dynamic environment. Design/methodology/approach This research adopts formulation of a mathematical model for generating a single layout for unequal area facility layout problems with flexible bay structure under dynamic environment. The formulated model for the robust layout formation is solved by developing a simulated annealing algorithm. The proposed robust approach model for UA-DFLP with FBS is validated by conducting numerical experiments on standard UA-DFLPs reported in the literature. The suitability of the generated robust layout in a dynamic environment is tested with total penalty cost criteria. Findings The proposed model has given a better solution for some UA-DFLPs with FBS in comparison with the adaptive approach’s solution reported in the literature. The total penalty cost is within the specified limit given in the literature, for most of the layouts generated for UA-DFLPs with FBS. In the proposed model, there is no rearrangement of facilities in various periods of planning horizon and thus no disruptions in operations. Research limitations/implications The present work has limitations that when the area and aspect ratio of the facilities are required to change from one period to another, then it is not possible to make application of the robust approach-based formulation to the dynamic environment facility layout problems. Practical implications Rearrangement of facilities in adaptive approach disrupts the operations whereas in the proposed approach no disruption of production. The FBS approach is more suitable for layout planning where proper aisle structure is required. The solution of the proposed approach helps to create a proper aisle structure in the detailed layout plan. Thus, easy interaction of the material handling equipment, men and materials is possible. Originality/value This paper proposes a mathematical formulation for the design of robust layout for UA-FLPs with FBS in a dynamic environment and an efficient simulated annealing algorithm as its solution procedure. The proposed robust approach generates a single layout for the entire planning horizon. This approach is more useful for facilities which are difficult/sensitive to relocate in various periods of the planning horizon.
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Suo, Xiao Hong y Zhan Qiang Liu. "Relationships among SFLP, DFLP and Robust Layout". Applied Mechanics and Materials 10-12 (diciembre de 2007): 235–41. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.235.

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Facility layout plays an important role in the performance of manufacturing systems. Firstly, this paper describes the derivations and classification of facility layout problem (FLP). The concepts of static facility layout problem (SFLP), dynamic facility layout problem (DFLP) and robust layout problem are introduced, and their main performance characteristics are compared with each other. Then, the procedure of rearrangement costs in DFLP is proposed. Some main characteristics of SFLP and DFLP, DFLP and robust layout are compared respectively. Lastly, the difference and connection among SFLP, DFLP and robust layout are analyzed. The research results indicate that the dynamic facility layout and robust layout are suitable for the dynamic and changeable manufacturing systems. The method for development of DFLP and its implementation are presented based on SFLP and robust layout.
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PEDRAM, MASSOUD y ERNEST S. KUH. "BEAR-FP: A ROBUST FRAMEWORK FOR FLOORPLANNING". International Journal of High Speed Electronics and Systems 03, n.º 01 (marzo de 1992): 137–70. http://dx.doi.org/10.1142/s0129156492000060.

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This paper presents a hierarchical floorplanning approach for macrocell layouts which is based on the bottom-up clustering, shape function computation, and top-down floorplan optimization with integrated global routing and pin assignment. This approach provides means for specifying and techniques for satisfying a wide range of constraints (physical, topological, timing) and is, therefore, able to generate floorplans for a number of different layout styles. A systematic and efficient optimization procedure during the selection of suitable floorplan patterns that integrates floorplanning, global routing and pin assignment, a new pin assignment technique based on linear assignment and driven by the global routing solution and floorplan topology, and an effective timing-driven floorplanning scheme are among the other novel features of the floorplanner. These techniques have been incorporated in BEAR-FP, a macrocell layout system developed at the University of California, Berkeley. Results on various placement and floorplanning benchmarks are quite good.
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Lin Ma y E. K. Antonsson. "Robust mask-layout and process synthesis". Journal of Microelectromechanical Systems 12, n.º 5 (octubre de 2003): 728–39. http://dx.doi.org/10.1109/jmems.2003.815830.

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Zarea Fazlelahi, Forough, Mehrdokht Pournader, Mohsen Gharakhani y Seyed Jafar Sadjadi. "A robust approach to design a single facility layout plan in dynamic manufacturing environments using a permutation-based genetic algorithm". Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 230, n.º 12 (8 de agosto de 2016): 2264–74. http://dx.doi.org/10.1177/0954405415615728.

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During the past few decades, developing efficient methods to solve dynamic facility layout problems has been focused on significantly by practitioners and researchers. More specifically meta-heuristic algorithms, especially genetic algorithm, have been proven to be increasingly helpful to generate sub-optimal solutions for large-scale dynamic facility layout problems. Nevertheless, the uncertainty of the manufacturing factors in addition to the scale of the layout problem calls for a mixed genetic algorithm–robust approach that could provide a single unlimited layout design. The present research aims to devise a customized permutation-based robust genetic algorithm in dynamic manufacturing environments that is expected to be generating a unique robust layout for all the manufacturing periods. The numerical outcomes of the proposed robust genetic algorithm indicate significant cost improvements compared to the conventional genetic algorithm methods and a selective number of other heuristic and meta-heuristic techniques.
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Peng, Yunfang, Tian Zeng, Lingzhi Fan, Yajuan Han y Beixin Xia. "An Improved Genetic Algorithm Based Robust Approach for Stochastic Dynamic Facility Layout Problem". Discrete Dynamics in Nature and Society 2018 (5 de diciembre de 2018): 1–8. http://dx.doi.org/10.1155/2018/1529058.

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This paper deals with stochastic dynamic facility layout problem under demand uncertainty in terms of material flow between facilities. A robust approach suggests a robust layout in each period as the most frequent one falling within a prespecified percentage of the optimal solution for multiple scenarios. Mont Carlo simulation method is used to randomly generate different scenarios. A mathematical model is established to describe the dynamic facility layout problem with the consideration of transport device assignment. As a solution procedure for the proposed model, an improved adaptive genetic algorithm with population initialization strategy is developed to reduce the search space and improve the solving efficiency. Different sized instances are compared with Particle Swarm Optimization (PSO) algorithm to verify the effectiveness of the proposed genetic algorithm. The experiments calculating the cost deviation ratio under different fluctuation level show the good performance of the robust layout compared to the expected layout.
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Bielik, Pavol, Marc Fischer y Martin Vechev. "Robust relational layout synthesis from examples for Android". Proceedings of the ACM on Programming Languages 2, OOPSLA (24 de octubre de 2018): 1–29. http://dx.doi.org/10.1145/3276526.

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Tesis sobre el tema "Robust layout"

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Oheba, Jamal Bashir. "A new framework considering uncertainty for facility layout problem". Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/a-new-framework-considering-uncertainty-for-facility-layout-problem(7e0b665d-ed10-4355-a200-70d52d93eefe).html.

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In today’s dynamic environment, where product demands are highly volatile and unstable, the ability to design and operate manufacturing facilities that are robust with respect to uncertainty and variability is becoming increasingly important to the success of any manufacturing firm in order to operate effectively in such an environment. Hence manufacturing facilities must be able to exhibit high levels of robustness and stability in order to deal with changing market demands. In general, Facility Layout Problem (FLP) is concerned with the allocation of the departments or machines in a facility with an objective to minimize the total material handling cost (MHC) of moving the required materials between pairs of departments. Most FLP approaches assume the flow between departments is deterministic, certain and constant over the entire time planning horizon. Changes in product demand and product mix in a dynamic environment invalidate these assumptions. Therefore there is a need for stochastic FLP approaches that aim to assess the impact of uncertainty and accommodate any possible changes in future product demands.This research focuses on stochastic FLP with an objective to present a methodology in the form of a framework that allows the layout designer to incorporate uncertainty in product demands into the design of a facility. In order to accomplish this objective, a measure of impact of this uncertainty is required. Two solution methods for single and multi period stochastic FLPs are presented to quantify the impact of product demand uncertainty to facility layout designs in terms of robustness (MHC) and variability (standard deviation). In the first method, a hybrid (simulation) approach which considers the development of a simulation model and integration of this model with the VIPPLANOPT 2006 algorithm is presented. In the second method, mathematical formulations of analytic robust and stable indices are developed along with the use of VIPPLANOPT for solution procedure. Several case studies are developed along with numerical examples and case studies from the literature are used to demonstrate the proposed methodology and the application of the two methods to address different aspects of stochastic FLP both analytically and via the simulation method. Through experimentation, the proposed framework with solution approaches has proven to be effective in evaluating the robustness and stability of facility layout designs with practical assumptions such as deletion and expansion of departments in a stochastic environment and in applying the analysis results of the analytic and simulation indices to reduce the impact of errors and make better decisions
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Mukherjee, Tonmoy Shankar. "High performance, low-power and robust multi-gigabit wire-line design". Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/39515.

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The object of this research is to develop robust wire-line systems which demonstrate high performance while simultaneously consuming low power. The main focus of this work is the Clock and Data Recovery (CDR) system, which is the primary circuit of any modern wire-line transceiver. Different techniques starting from circuit-level to system-level have been investigated in this work to improve the performance of multi-gigabit CDRs. A 62 GHz bandwidth amplifier has been presented to address the need for a scalable amplifier for CDR needs. A new technique has been proposed to improve the radiation immunity of latches, to reduce the BER in CDRs occurring due to package radiations. An injection-lock based clock recovery method was investigated as an alternative to PLL based CDRs as they can be used for burst-mode wire-line communication. The investigation yielded the vulnerability of the method to jitter (false-locking and high jitter transfer), the attenuation of which is critical to commercial CDRs. A novel false-lock detector system has been proposed and demonstrated for the first time as a robust solution to the issue of false-locking of CDRs due to repetitive patterns. The implementation of the final CDR system required the use of an L-C tank VCO, the components of which are generic for all commercial CDRs. A new systematic layout technique for the VCO has been proposed and demonstrated in this work to substantially improve the layout area and the associated parasitics, approximately by 70 %. This new layout addresses a critical yet often neglected part of VCO design. Furthermore, a new concept has been proposed to optimize static dividers with respect to their power consumption and number of devices.
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Christensen, Mick y Albin Thörn. "Framtagning av automatiserat layoutförslag : Layout med human robot-kollaboration". Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-15832.

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Industrin står inför utmaningar på grund av förkortade produktlivscykler och ökad produktvariation. Nuvarande system har svårt att hantera ökade krav. Kollaborativa robotar (cobots) har utvecklats för att övervinna dessa svårigheter och skapa flexibla och anpassningsbara automatiseringsprocesser. Parker Hannifin i Skövde monterar idag hydraulik‐ och pneumatikkopplingar. All montering är manuell, vilket kan resultera i påfrestande ergonomi för arbetarna. Produktiviteten och kvalitetsutfallet lider i nuläget inte av några större problem, men företaget ser ändå anledningar till att automatisera delar av produktionen. Dels vikten av att ständigt försöka förbättra sig både inom ergonomi och produktion, samt att en förnyelse av företaget sker. Projektets syfte är att hitta en arbetsstation lämpad för kollaborativ automatisering. Stationen och dess moment ska därefter studeras för att kartlägga vad som krävs för att göra en förbättring genom en automatiserad layout. Målet med arbetet är att det ska kunna användas som underlag i framtiden för beslut om investering. Olika arbetsstationer och moment kommer studeras för att kunna välja en lämplig process för automatisering. För att kartlägga vad som krävs av ett layoutförslag behöver information om komponentkandidater samlas in. Jämförelser kommer sedan göras baserat på konceptets parametrar. Årskostnad mellan kollaborativ och manuell station kommer jämföras utifrån uppskattad livslängd på investeringen. Produkttyp 1 är en spillfri produkt och har goda förutsättningar att öka i volym i framtiden. I dagsläget har stationerna för tillverkning av produkttyp 1 och 2 hög beläggning. Stationen X ansågs därför vara en lämplig kandidat och valdes till projektet. När sammanställningarna av parametrarna och jämförelserna var gjorda, valdes UR5 från Universal Robots som robotmodell med gripper från Robotiq och vision system från Sick. Ett layoutförslag skapades där roboten utför monteringens sista moment, 11–15. Med en beräknad livslängd på sju år, visade det sig att en investering med föreslagen layout inte skulle vara ekonomiskt lönsamt jämfört med manuellt arbete. På grund av att en mycket högre produktionsvolym krävs i station X, bör implementationen istället undersökas på annan station så att roboten får högre beläggning. Arbetet har även undersökt lösningar till olika moment som inte tagits med i förslaget. Trots att layouten inte är mer lönsam än dagens manuella montering, ses projektet som lyckat och arbetet som ett värdefullt underlag för framtiden. Det är inte bara ekonomin som är viktig att reflektera över, utan kvalité och ergonomi är aspekter som kan dra stor nytta av kollaborativa robotar.
The industry today stands before challenges because of products shortened lifecycle and increased variation. Present systems are having a difficult time handling these demands. Collaborative robots (cobots) have been developed to overcome these problems and creating flexible and adjustable automation processes. Parker Hannifin in Skövde is a manufacturer of hydraulic and pneumatic couplings. All assembly is done manually at present, which can cause issues ergonomically for the workers. The productivity and quality are not suffering from any major problem now, still the company sees reasons to automate parts of the production. Partly because the importance of always trying to improve the production and ergonomic, but also the renewal of the company that follows is a reason. The purpose of the project is to find a workstation suitable for collaborative automation. The station and the processes are then to be studied to define what is needed for improvement through an automated layout. The goal is that the project will work as support for future decision concerning an investment. Different stations and moments will be studied for choosing an appropriate process to automate. Information regarding components needs to be collected, for mapping the needs of the layout. Comparisons will then be made from the concept’s parameters. Yearly cost between collaborative and manual station will be compared based on an approximately life time of the investment. Product type 1 is a new type of spill free product and its volume have good conditions to increase inthe future. Today the stations for manufacturing product type 1 and 2 have a high occupation. Station X was considered an appropriate candidate and was chosen for the project. After a compilation of the comparisons been made, the robot model UR5 from Universal Robots with a gripper from Robotiq and vision system from Sick, was chosen. A proposed layout was made where the robot is performing the last moments, 11‐15, of the assembly. The results showed that with an approximate life time of seven years, the investment would not be financially profitable compared to manual labour. The implementation should instead be investigated in a different station, concerning the high production volume that is needed in station X. The work has resulted in several solution for moments not included in the proposition. The project is still viewed as successful and the work as useful support for the future, despite results showing that the layout is not more profitable than today’s manual assembly. It is just not the economical aspect that is important to reflect over, but quality and ergonomic are fields that can benefit from collaborative robots.
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Šula, Martin. "Automatizace výroby statorů elektromotorů". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417747.

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The diploma thesis deals with the design of a robotic workplace layout for finishing operations on the stator of an electric motor. Three variants of the workplace layout were created, these variants were evaluated, and then the most suitable variant was selected. Suitable subcomponents have been created for this variant, such as the end effector, deburring spindles, rotary stand and milling table. A risk analysis was also created for her to ensure the safety and protection of the operator. The most suitable variant was transferred to the Process Simulate software, where its functionality was verified and the real cell cycle was determined.
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Zhao, Zhengyang. "Optimizing Task Sequence and Cell Layout for Dual Arm Robot Assembly Using Constraint Programming". Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186593.

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Nowadays, assembly robots are increasingly used in the manufacturing industry to replace or collaborate with human labors. This is the goal of the dual arm assembly robot developed by ABB. With the rapid upgrading in consumer electronics products, the lifetime of an assembly line could be only a few months. However, even for experienced programmers, to manually construct a good enough assembly sequence is time consuming, and the quality of the generated assembly sequence is not guaranteed. Moreover, a good robot assembly sequence is important to the throughput of an assembly line. For dual arm robots, it is also important to obtain a balance between the two arms, as well as handling scheduling conflicts and avoiding collisions in a crowded environment. In this master thesis, a program is produced to automatically generate the optimal assembly sequence for a class of real-world assembly cases. The solution also takes the layout of the assembly cell into account, thus constructing the best combination of cell layout, workload balancing, task sequence and task scheduling. The program is implemented using Google OR-Tools – an open-source support library for combinatorial optimization. A customized search strategy is proposed and a comparison between this strategy and the built-in search strategy of Google OR-Tools is done. The result shows that the used approach is effective for the problem study case. It takes about 4 minutes to find the optimal solution and 32 minutes to prove its optimality. In addition, the result also shows that the customized search strategy works consistently with good performance for different problem cases. Moreover, the customized strategy is more efficient than built-in search strategy in many cases.
Numera används monteringsrobotar alltmer inom tillverkningsindustrin för att ersätta eller samarbeta med människor. Detta är måluppgiften för den tvåarmiga monteringsroboten, YuMi, som utvecklats av ABB. Med den korta produktlivslängden för hemelektronikprodukter kan livslängden för en monteringslinje vara ett fåtal månader. Även för erfarna robotprogrammerare är det svårt och tidsödande att manuellt konstruera en tillräckligt bra monteringsordning, och dessutom kan resultatets kvalitet inte garanteras. En bra monteringsordning är nödvändig för genomströmningen i en monteringslinje. För tvåarmiga robotar, är det också viktigt att få en balans mellan de två armarna, samt hantering av schemakrockar och undvika kollisioner i en trång miljö. I detta examensarbete har ett program skrivits, som automatiskt genererar optimala lösningar för en klass av verkliga monteringsfall. Lösningen tar hänsyn till utformningen av monteringscellen och arrangerar cellen på bästa sätt, balanserar arbetsbelastningen, ordnar och tidsbestämmer uppgifter. Programmet använder sig av Google OR-Tools – ett öppet kodbibliotek för kombinatorisk optimering. Dessutom föreslås en skräddarsydd sökstrategi, som jämförs med Google OR-Tools inbyggda sökstrategi. Resultatet visar att den använda metoden är effektiv för problemtypen. Det tar ungefär 4 minuter att hitta den optimala lösningen och 32 minuter för att bevisa optimalitet. Dessutom visar resultatet att den anpassade sökstrategin konsekvent har en bra prestanda för olika problemfall. Dessutom är den anpassade strategin effektivare än den inbyggda sökstrategin i många fall.
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Guex, Jerson Paulo. "Utilizando folding no projeto de portas lógicas robustas à variabilidade de processo". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/78529.

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Este trabalho visa explorar técnicas de projeto de células que possibilitem a minimização dos efeitos da variabilidade de processo sobre o comportamento elétrico dos circuitos integrados. Para este trabalho foram abordados aspectos de regularidade, principalmente na camada de polisilício. A técnica de folding foi explorada em conjunto com a regularidade como possível metodologia de projeto voltada para a minimização dos efeitos da variabilidade de processo. Leiautes de portas lógicas complexas e básicas foram criadas utilizando tecnologia em 65nm. Os netlists dos leiautes extraídos foram simulados utilizando modelos que refletiam os efeitos da variabilidade sobre os parâmetros tecnológicos mais afetados pela variabilidade de processo. Os parâmetros selecionados para este experimento foram a largura (W) e comprimento (L) do canal do transistor, espessura do óxido de porta (Tox) e a mobilidade (μ0) das cargas. Os dados referentes ao pior caso envolvendo atraso e potência consumida de cada porta foram utilizados como métricas de comparação. Os resultados encontrados demonstram que a utilização da técnica de folding juntamente com aspectos de regularidade tornaram os experimentos menos sensíveis às variações do processos de manufatura de circuitos integrados. Essas reduções de sensibilidade chegaram em algumas situações à 33.22% para as portas básicas e de 28.96% para as portas complexas. A adição de folding e regularidade da camada de polisilício, trazem desvantagens significativas em área e potência consumida de cada porta. Pelos experimentos realizados é possível verificar aumento superior a 100% em área de algumas portas e de até 20.54% de aumento em potência. A união destas duas técnicas pode ser utilizada para tornar, por exemplo, o caminho crítico de um circuito integrado mais robusto quanto as variações de temporização e de potência.
This paper aims to explore for design techniques that allow the minimization of the effects of process variability on the electrical behavior of integrated circuits. To this work were discussed aspects of regularity, especially in poly-silicon layer. The technique of it folding was explored in conjunction with the regularity as possible design methodology aimed to minimizing the effects of process variability. Complex and basic layouts logic gates were built using 65nm technology. The it netlists extracted from layouts of the gates were simulated using models that reflected the effects of variability on the main technological parameters such as W, L, Tx, mu0 of the charges. The worst delay of each port and power consumption parameters were used for comparison in this work. The results show that using the it folding with regularity aspects of the experiments turns the layout gates less sensitive to process variations. These sensitivity reductions reached in some situations to 33.22 % for the basic gates and 28.96 % for the complex gates created. This techniques brings significant disadvantages in size and power consumption. For the experiments you can check increase of over 100% in area and up than 20,54% increase in power. These techniques should be used with discretion, especially on projects where there are area or consumption restrictions.
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Jirák, David. "Návrh automatizace linky pro broušení součásti kompresoru". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231020.

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The topic of this diploma thesis was chosen by Valeo Compressor Europe Company. The aim is to propose an automation of the production line for grinding of a compressor part. The part is internally termed “Cylinder,” and it is an integral part of a new type of a rotational compressor for air-conditioning units of automobiles. The diploma thesis includes a complete proposal for the automation of workplace. The current state, the proposal of the concept, technical specification of the project, and the choice of a suitable supplier and economical assessment are included. The data were provided by Valeo Compressor Europe Company.
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Spada, Alessio. "Analisi e progettazione di soluzioni robotiche per l'alimentazione di macchine automatiche per il tè". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10270/.

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Nel presente elaborato è stato valutato l’inserimento di robot commerciali per il caricamento di materiali da processare da macchine automatiche del tè. Sono state affrontate sia valutazioni di tipo progettuale che di tipo economico al fine di poter ottenere e confrontare soluzioni che fossero concretamente realizzabili, in linea con le normative vigenti ed economicamente vantaggiose rispetto alle convenzionali soluzioni senza robot. L’elevato numero di aspetti da considerare ha richiesto lo studio e l’integrazione di campi tematici differenti.
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Martinsson, Fredrik. "Development of Robust Automated Handling of pre-impregnated Carbon Fibre". Thesis, Linköpings universitet, Industriell Produktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148583.

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Prepreg is a fibre reinforced polymer composite material often used by the aeronautical industry. The material supplier has pre-impregnated the fibre often with an epoxy resin and cured it to a semi-viscous B-stage where the material is tacky (adhesive). Manual layup of prepreg components is still common because there are only a few automated layup techniques which has limited geometric capability and high investment cost. Swerea SICOMP is a research institute which have in collaboration with partners developed a manufacturing demonstrator for automated layup of carbon fibre prepreg components based on robotic handling. The manufacturing demonstrator is able to; feed out prepreg from a spool onto a cutting table, cut the prepreg into plies, pick the plies from the cutting table and place them on a layup table, consolidate the prepreg plies on the layup table and remove the backing paper that covers one side of the prepreg. Three robustness problems has been identified and these forms the bulk of this master’s thesis. The first problem is that the robot is unable to place the plies on the cutting table with sufficient accuracy due to fluctuating position of the prepreg on the cutting table. The second problem is that the end effector used for the pick and place operation sometimes fails to pick the adhesive plies from the cutting table. The problem originates in limited holding force by the end effectors suction cups and limited capability to perform a peeling motion when picking due to the design of the end effector. The third problem is that process variables like temperature is believed to effect the robustness of the demonstrator but has not been further studied. The first problem was solved by implementing a probing routine which measures the position of the prepreg on the cutting table with an array sensor mounted to the robot. The measurement values are used to reprogram subsequent operations. The second problem seems to be solved by designing and implementing a new pick and place end effector. The new end effector has higher holding force and better capability to perform a peeling motion while picking and placing the tacky prepreg plies. Tests with the new end effector has been promising, the pick and placeoperation performs robustly, but all ply geometries was not tested and some minor adjustment is needed to further improve the placing accuracy. The third problem has not been solved but studied. A literature study reviled that temperature, relative humidity and prepreg out of freezer age is likely to effect the prepreg adhesive properties which in turn is known to effect the robustness. A test procedure has been devised to test how these variables effect the robustnessof the demonstrator. The tests should be conducted when all process steps in the demonstrator is up and running.
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Karlqvist, Vanessa. "Future Assembly Layout Design for assembly of large robots : A state-of-the-art literature review and a Fuzzy AHP analysis for ABB values". Thesis, Mälardalens högskola, Innovation och produktrealisering, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48896.

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Global competition is growing for companies everywhere and the demand for new and improved products are rising for each day that passes. The globalization brings new opportunities as well as new challenges since companies need to stay up to date and implement new technologies to stay competitive. Not only do customers want up to date products, they also want high quality, low price and individualized products, customized for their needs. This puts high demand on manufacturing companies to adapt their businesses, increase product diversity and to being able to introduce new variations and new products quickly.  Since the drastic evolution of technology has increased the competitiveness of industrial companies, and the mass customization demands have increased, the necessity to investigate potential system alternatives towards improving production processes, with the help from the new technology, is required. One way of doing this is to revaluate one's assembly layouts since the layout design decision is highly connected to the product portfolio and the production volumes. The specific objective of this thesis is to broaden the case company’s, ABB, knowledge on ways their assembly of large robots can be improved with the focus on potential future assembly solutions. The overall aim of this thesis work is to identify state-of-the-art possible layout design alternatives, evaluate their performances and finding a method of choosing the final layout approach. This is answered by research questions connected to plant layout selection methodology, plant layout options and finally recommendations for the case company. The methodology chosen for deciding the recommended layout is the fuzzy Analytical Hierarchy Process which is a multi-criteria decision-making tool suitable for decision problems with a hierarchical structure, having main attributes and sub attributes connected to each main attribute. Twenty-four attributes were created and ten layouts based on company observations and a literature study. The layout with the highest score was a layout based on a modernized version of the common fixed position layout. The overall recommendation for the case company was to focus on having a layout in the future with focus on a high technology level as well as high flexibility, for also receiving high performance.
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Libros sobre el tema "Robust layout"

1

Design of simple and robust process plants. Weinheim, Germany: Wiley-VCH, 2001.

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Nicolaisen, Peter. Entwicklung von Planungshilfsmitteln für Arbeitsschutzaspekte in automatisierten Produktionssystemen. Dortmund: Bundesanstalt für Arbeitsschutz, 1992.

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Koolen, J. L. A. Design of Simple and Robust Process Plants. Wiley & Sons, Incorporated, John, 2021.

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Koolen, J. L. A. Design of Simple and Robust Process Plants. Wiley-VCH Verlag GmbH, 2003.

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Bi, Xiaojun, Brian Smith, Tom Ouyang y Shumin Zhai. Soft Keyboard Performance Optimization. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198799603.003.0006.

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Optimization techniques have played a vital role in improving the performance (i.e., input speed and accuracy) of soft keyboards. This chapter introduces the challenges, methodologies, and results of keyboard performance optimization. Leveraging the robust human motor control phenomena manifested in text entry, we used the Metropolis random walk algorithm, and Pareto multi-objective optimization method to optimize the keyboard layout and a soft keyboard decoder. The optimization led to layouts that shorten finger travel distance and improve the input speed as well as accuracy over the Qwerty layout, and a soft keyboard decoder with improved correction and completion ability.
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Ray, Sumantra (Shumone), Sue Fitzpatrick, Rajna Golubic, Susan Fisher y Sarah Gibbings, eds. Data capture tools: case report form (CRF). Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199608478.003.0016.

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This chapter outlines the overall design process, highlights the aspects of design that are significant for the success of the case report form (CRF) and considers the effects of electronic data capture (EDC) in the production of electronic CRFs (eCRFs). It defines the purpose and regulatory requirements in designing a CRF. The chapter describes the data to be recorded in the CRF to answer the hypothesis being posed and collect safety data. The layout and design features are reviewed ensuring an aesthetically pleasing, easy to complete format is achieved. Hint and tips for CRF completion are described and the chapter shows how important question construction is in achieving the objectives of a CRF. The process of CRF printing is described and the different methods for binding and their importance in the production of a robust CRF. The pros and cons of Paper vs. eCRFs is described and the use of tablets and mobile phones being used for data capture is explored, Whatever the method of data capture the design features of the CFR will largely remain the same.
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Abrams, Mary Ann y Benard P. Dreyer. Plain Language Pediatrics. American Academy of Pediatrics, 2008. http://dx.doi.org/10.1542/9781581104417.

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An essential tool to help improve communication between pediatrician and patient or family, Plain Language Pediatrics offers a framework for implementing a plain language approach to communication in your office, and provides specific steps you can take to ensure the information you present to patients and their parents is clearly understood. Included are 25 reproducible plain language patient education handouts--in English and Spanish! Plain Language Pediatrics combines health literacy and plain language principles to present information in a way that makes it as easy as possible for everyone to understand, and applies these principles to a variety of ambulatory acute, chronic, and preventive conditions. Common pediatric topics such as asthma, ADHD, ear infections, and medical dosing are addressed in detail. This robust resource is divided into 2 parts. Part I explores limited health literacy, including the scope of the problem, how it affects children in particular, and how health care providers can address and overcome health literacy issues with patients and their caregivers. At the heart of Part II is a new series of 25 reproducible patient education handouts in English and Spanish that feature need-to-know information up front, health care terms and jargon, practical pronunciation guides, low reading levels, user-friendly layouts, and simple, purposeful illustrations.
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Capítulos de libros sobre el tema "Robust layout"

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Zhang, Peter Y., Jim Y. J. Kuo, David A. Romero, Timothy C. Y. Chan y Cristina H. Amon. "Chapter 28: Robust Wind Farm Layout Optimization". En Advances and Trends in Optimization with Engineering Applications, 367–75. Philadelphia, PA: Society for Industrial and Applied Mathematics, 2017. http://dx.doi.org/10.1137/1.9781611974683.ch28.

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Fu, Yangchun, Junghwan Rhee, Zhiqiang Lin, Zhichun Li, Hui Zhang y Guofei Jiang. "Detecting Stack Layout Corruptions with Robust Stack Unwinding". En Research in Attacks, Intrusions, and Defenses, 71–94. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45719-2_4.

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Fan, Zhun, Jiachuan Wang, Min Wen, Erik Goodman y Ronald Rosenberg. "An Evolutionary Approach For Robust Layout Synthesis of MEMS". En Studies in Computational Intelligence, 519–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49774-5_23.

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Morinaga, Eiji, Komei Iwasaki, Hidefumi Wakamatsu y Eiji Arai. "A Robust Facility Layout Planning Method Considering Temporal Efficiency". En Advances in Production Management Systems. The Path to Intelligent, Collaborative and Sustainable Manufacturing, 168–75. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66926-7_20.

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Auer, Christoph, Ahmed Nassar, Maksym Lysak, Michele Dolfi, Nikolaos Livathinos y Peter Staar. "ICDAR 2023 Competition on Robust Layout Segmentation in Corporate Documents". En Lecture Notes in Computer Science, 471–82. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-41679-8_27.

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Vitayasak, Srisatja y Pupong Pongcharoen. "Genetic Algorithm Based Robust Layout Design By Considering Various Demand Variations". En Advances in Swarm and Computational Intelligence, 257–65. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20466-6_28.

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Wang, Longyan y Andy C. C. Tan. "Robust Wind Farm Layout Optimization Under Weibull Distribution by Monte Carlo Simulation". En Engineering Assets and Public Infrastructures in the Age of Digitalization, 907–14. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48021-9_100.

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Vitayasak, Srisatja y Pupong Pongcharoen. "Competitive Learning and Dynamic Genetic Algorithms for Robust Layout Designs Under Uncertainties". En Lecture Notes in Computer Science, 195–207. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-36622-2_16.

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Morinaga, Eiji, Komei Iwasaki, Hidefumi Wakamatsu y Eiji Arai. "Reduction of Computational Load in Robust Facility Layout Planning Considering Temporal Production Efficiency". En IFIP Advances in Information and Communication Technology, 189–95. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29996-5_22.

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Kumar, Ravi y Surya Prakash Singh. "Modified SA Algorithm for Bi-objective Robust Stochastic Cellular Facility Layout in Cellular Manufacturing Systems". En Advanced Computing and Communication Technologies, 19–33. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0680-8_3.

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Actas de conferencias sobre el tema "Robust layout"

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Ma, Lin y Erik K. Antonsson. "Robust Mask-Layout and Process Synthesis Through an Evolutionary Algorithm". En ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1107.

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Abstract A method for automated mask-layout and process synthesis for MEMS is presented. The synthesis problem is approached by use of a genetic algorithm. For a given desired device shape, and several fabrication process choices, this synthesis method will produce one or more mask-layouts and associated fabrication process sequences (which when used can generate shapes close to the desired one). Given complicated device shapes and wide range of fabrication process possibilities, the designer may encounter difficulty producing the right mask-layout and fabrication procedure by experience and trial and error. An automated synthesis tool like this will be helpful to the designer by increasing the efficiency and accuracy of the design of MEMS devices.
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LeCompte, Travis, Fang Qi y Lu Peng. "Robust Cache-Aware Quantum Processor Layout". En 2020 International Symposium on Reliable Distributed Systems (SRDS). IEEE, 2020. http://dx.doi.org/10.1109/srds51746.2020.00035.

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Mittal, Prateek y Kishalay Mitra. "Robust Wind Farm Layout Optimization under Uncertainty". En 2019 Sixth Indian Control Conference (ICC). IEEE, 2019. http://dx.doi.org/10.1109/icc47138.2019.9123240.

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Martins, Ricardo, Nuno Lourenco, Antonio Canelas, Ricardo Povoa y Nuno Horta. "AIDA: Robust layout-aware synthesis of analog ICs including sizing and layout generation". En 2015 International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD). IEEE, 2015. http://dx.doi.org/10.1109/smacd.2015.7301703.

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Kyoung-Hwan Kim, Hong Kook Min, Se Yeoul Park, So Ra Park, Seung Jin Yang, Byung Sup Shim, Yong Tae Kim y Jeong-Uk Han. "Robust pad layout to improve wire bonding reliability". En 2011 IEEE International Reliability Physics Symposium (IRPS). IEEE, 2011. http://dx.doi.org/10.1109/irps.2011.5784539.

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Dasgupta, Saumitro, Kuan Fang, Kevin Chen y Silvio Savarese. "DeLay: Robust Spatial Layout Estimation for Cluttered Indoor Scenes". En 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2016. http://dx.doi.org/10.1109/cvpr.2016.73.

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Lianos, Konstantinos-Nektarios, Luis Puig, Ajaykumar Unagar y Salma Jiddi. "Robust Planar Optimization for General 3D Room Layout Estimation". En 2022 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct). IEEE, 2022. http://dx.doi.org/10.1109/ismar-adjunct57072.2022.00188.

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Gu Cong y Chen Hong. "HV CMOS orientated variation-aware layout and robust solution". En 2011 IEEE 9th International Conference on ASIC (ASICON 2011). IEEE, 2011. http://dx.doi.org/10.1109/asicon.2011.6157172.

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Chen, Catherine, Zejiang Shen, Dan Klein, Gabriel Stanovsky, Doug Downey y Kyle Lo. "Are Layout-Infused Language Models Robust to Layout Distribution Shifts? A Case Study with Scientific Documents". En Findings of the Association for Computational Linguistics: ACL 2023. Stroudsburg, PA, USA: Association for Computational Linguistics, 2023. http://dx.doi.org/10.18653/v1/2023.findings-acl.844.

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Quan, Ning y Harrison Kim. "Two Stage Mini-Max Algorithm for Grid-Based Wind Farm Layout Optimization". En ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67535.

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The power maximizing grid-based wind farm layout optimization problem seeks to determine the layout of a given number of turbines from a grid of possible locations such that wind farm power output is maximized. The problem in general is a nonlinear discrete optimization problem which cannot be solved to optimality, so heuristics must be used. This article proposes a new two stage heuristic that first finds a layout that minimizes the maximum pairwise power loss between any pair of turbines. The initial layout is then changed one turbine at a time to decrease sum of pairwise power losses. The proposed heuristic is compared to the greedy algorithm using real world data collected from a site in Iowa. The results suggest that the proposed heuristic produces layouts with slightly higher power output, but are less robust to changes in the dominant wind direction.
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Informes sobre el tema "Robust layout"

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McMartin, I., M. S. Gauthier y A. V. Page. Updated post-glacial marine limits along western Hudson Bay, central mainland Nunavut and northern Manitoba. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330940.

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A digital compilation of updated postglacial marine limits was completed in the coastal regions of central mainland Nunavut and northern Manitoba between Churchill and Queen Maud Gulf. The compilation builds on and updates previous mapping of the marine limits at an unprecedented scale, making use of high-resolution digital elevation models, new field-based observations of the marine limit and digital compilations of supporting datasets (i.e. marine deltas and marine sediments). The updated mapping also permits a first-hand, knowledgedriven interpolation of a continuous limit of marine inundation linking the Tyrrell Sea to Arctic Ocean seawaters. The publication includes a detailed description of the mapping methods, a preliminary interpretation of the results, and a GIS scalable layout map for easy access to the various layers. These datasets and outputs provide robust constraints to reconstruct the patterns of ice retreat and for glacio-isostatic rebound models, important for the estimation of relative sea level changes and impacts on the construction of nearshore sea-transport infrastructures. They can also be used to evaluate the maximum extent of marine sediments and associated permafrost conditions that can affect land-based infrastructures, and potential secondary processes related to marine action in the surficial environment and, therefore, can enhance the interpretation of geochemical anomalies in glacial drift exploration methods. A generalized map of the maximum limit of postglacial marine inundation produced for map representation and readability also constitutes an accessible output relevant to Northerners and other users of geoscience data.
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