Academic literature on the topic '120405 Models of Engineering Design'

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Journal articles on the topic "120405 Models of Engineering Design"

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Chen, Cheng-Wu. "Modeling and Fuzzy PDC Control and Its Application to an Oscillatory TLP Structure." Mathematical Problems in Engineering 2010 (2010): 1–13. http://dx.doi.org/10.1155/2010/120403.

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An analytical solution is derived to describe the wave-induced flow field and surge motion of a deformable platform structure controlled with fuzzy controllers in an oceanic environment. In the controller design procedure, a parallel distributed compensation (PDC) scheme is utilized to construct a global fuzzy logic controller by blending all local state feedback controllers. The Lyapunov method is used to carry out stability analysis of a real system structure. The corresponding boundary value problems are then incorporated into scattering and radiation problems. These are analytically solved, based on the separation of variables, to obtain a series of solutions showing the harmonic incident wave motion and surge motion. The dependence of the wave-induced flow field and its resonant frequency on wave characteristics and structural properties including platform width, thickness and mass can thus be drawn with a parametric approach. The wave-induced displacement of the surge motion is determined from these mathematical models. The vibration of the floating structure and mechanical motion caused by the wave force are also discussed analytically based on fuzzy logic theory and the mathematical framework to find the decay in amplitude of the surge motion in the tension leg platform (TLP) system. The expected effects of the damping in amplitude of the surge motion due to the control force on the structural response are obvious.
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JESSOP, ALAN. "MODELS AND DESIGN IN ENGINEERING." Civil Engineering and Environmental Systems 16, no. 1 (March 1999): 1–17. http://dx.doi.org/10.1080/02630259908970248.

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EMORI, Ichiro. "Scale Models and Engineering Design." Journal of the Society of Mechanical Engineers 91, no. 833 (1988): 303–7. http://dx.doi.org/10.1299/jsmemag.91.833_303.

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THOMPSON, G. "Mathematical Models and Engineering Design." Water and Environment Journal 7, no. 1 (February 1993): 18–23. http://dx.doi.org/10.1111/j.1747-6593.1993.tb00805.x.

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Smoak, Robert A., and Xavier R. Ollat. "Construction of control design models from engineering simulation models." Mathematical and Computer Modelling 14 (1990): 413–17. http://dx.doi.org/10.1016/0895-7177(90)90218-c.

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Parkinson, A. "Robust Mechanical Design Using Engineering Models." Journal of Mechanical Design 117, B (June 1, 1995): 48–54. http://dx.doi.org/10.1115/1.2836470.

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This paper examines how engineering models can be used to develop robust designs—designs that can tolerate variation. Variation is defined in terms of tolerances which bracket the expected deviation of model variables and/or parameters. Several methods for robust design are discussed. The method of transmitted variation is explained in detail and illustrated on a linkage design problem and a check valve design problem.
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Parkinson, A. "Robust Mechanical Design Using Engineering Models." Journal of Vibration and Acoustics 117, B (June 1, 1995): 48–54. http://dx.doi.org/10.1115/1.2838676.

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This paper examines how engineering models can be used to develop robust designs—designs that can tolerate variation. Variation is defined in terms of tolerances which bracket the expected deviation of model variables and/or parameters. Several methods for robust design are discussed. The method of transmitted variation is explained in detail and illustrated on a linkage design problem and a check valve design problem.
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Hershenson, M. "Models of good design." IEE Review 49, no. 6 (June 1, 2003): 38. http://dx.doi.org/10.1049/ir:20030612.

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Rodd, M. G. "Logic models of design." Engineering Applications of Artificial Intelligence 1, no. 4 (December 1988): 335. http://dx.doi.org/10.1016/0952-1976(88)90059-0.

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Maffin, David. "Engineering Design Models: Context, theory and practice." Journal of Engineering Design 9, no. 4 (December 1998): 315–27. http://dx.doi.org/10.1080/095448298261462.

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Dissertations / Theses on the topic "120405 Models of Engineering Design"

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Bashir, Hamdi A. "Models for estimating design effort." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0034/NQ64508.pdf.

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LeBlanc, Andrew Roland. "Engineering design decomposition." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/16044.

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Jessop, Alan Thomas. "Multiattribute models for engineering evaluation." Thesis, Heriot-Watt University, 1999. http://hdl.handle.net/10399/1226.

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Peak, Russell Speights. "Product model-based analytical models (PBAMs) : a new representation of engineering analysis models." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/18379.

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Gonzalez-Zugasti, Javier P. (Javier Patricio) 1965. "Models for platform-based product family design." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9300.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
Includes bibliographical references (p. 95-97).
Platform-based product families have been an effective way for companies to offer increased variety into markets, while containing the resulting complexity of developing large numbers of products. A product platform is the set of resources - components, processes, technologies, and knowledge - that are shared across multiple products offered by a firm. The products derived from that common platform are called the variants, and the set of variants forms a product family. This thesis presents a theoretical basis for modeling the design of platform-based product families, as well as practical implementations based on those models. The problem is formulated as an optimization, where the requirements of the desired variants must be balanced against family objectives, such as maximizing the value of developing the family. A general case is formulated that covers the effects of using a platform-based design on the benefits and investments required to produce the desired family. The problem is then simplified into a two-step optimization approach to apply it to actual design situations for complex products. The first stage considers the technical details of creating feasible product families that satisfy the variants' requirements while optimizing the expected value to the firm. The second stage evaluates the design alternatives generated by the first step, considering the effects of uncertainty during the actual development of the family on its value to the firm. This evaluation is then used to select the most appropriate choice of family design. A case study of the design of multiple NASA exploratory space missions based on alternative telecommunications technology platforms is shown. Applying the approach resulted in several alternative family designs, some of which had not been previously considered viable. The resulting candidate designs were evaluated through the use of decision analysis models developed in this thesis, which calculate the value to the firm of each design. Simulation was then used to evaluate the value of each alternative and its flexibility to changes in uncertain factors during the development process. As a reference, a Pugh-type selection method (a qualitative, multi-criteria approach) was also explored and applied to the example of platform-based spacecraft design.
by Javier P. Gonzalez-Zugasti.
Ph.D.
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Smith, Robert Paul. "Development and verification of engineering design iteration models." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12858.

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Gasparini, Riccardo. "Engineering Analysis in Imprecise Geometric Models." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1793.

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Engineering analysis in geometric models has been the main if not the only credible/reasonable tool used by engineers and scientists to resolve physical boundaries problems. New high speed computers have facilitated the accuracy and validation of the expected results. In practice, an engineering analysis is composed of two parts; the design of the model and the analysis of the geometry with the boundary conditions and constraints imposed on it. Numerical methods are used to resolve a large number of physical boundary problems independent of the model geometry. The time expended due to the computational process are related to the imposed boundary conditions and the well conformed geometry. Any geometric model that contains gaps or open lines is considered an imperfect geometry model and major commercial solver packages are incapable of handling such inputs. Others packages apply different kinds of methods to resolve this problems like patching or zippering; but the final resolved geometry may be different from the original geometry, and the changes may be unacceptable. The study proposed in this dissertation is based on a new technique to process models with geometrical imperfection without the necessity to repair or change the original geometry. An algorithm is presented that is able to analyze the imperfect geometric model with the imposed boundary conditions using a meshfree method and a distance field approximation to the boundaries. Experiments are proposed to analyze the convergence of the algorithm in imperfect models geometries and will be compared with the same models but with perfect geometries. Plotting results will be presented for further analysis and conclusions of the algorithm convergence
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Thompson, David Charles. "Feasibility of a skeletal modeler for conceptual mechanical design /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004386.

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Rios, Miguel. "Broadband networks design models and admission control algorithms." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0020/NQ48114.pdf.

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Shen, Su 1973. "Logistics service network design : models, algorithms, and applications." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/29424.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2004.
Includes bibliographical references (leaves 177-186).
Service network design is critical to the profitability of express shipment carriers. In this thesis, we consider two challenging problems associated with designing networks for express shipment service. The first problem is to design an integrated network for premium and deferred services simultaneously. Related existing models adapted to this problem are intractable for realistic instances of this problem: computer memory requirements and solution times are excessive. We introduce a disaggregate information-enhanced column generation approach for this problem that reduces the number of variables to be considered in the integer program from hundreds of thousands to only thousands, allowing us to solve previously unsolvable problem instances. The second problem is to determine the express package service network design in its entirety, including aircraft routings, fleet assignments, and package flow routings, including hub assignments. Existing models applied to this problem have weak associated linear programming bounds and hence, fail to produce quality feasible solutions. For example, for a small network design problem instance it takes days to produce a feasible solution that is provably near- optimal using the best performing existing model. To overcome these tractability challenges, we introduce a new model, referred to as the gateway cover and flow formulation. Applying our new formulation to the same network design instance, it takes only minutes to find an optimal solution.
(cont.) Applying our disaggregate information-enhanced column generation approach and gateway cover and flow formulation and solution approach to the network design problems of a large express package service provider, we demonstrate tens of millions of dollars in potential annual operating cost savings and reductions in the numbers of aircraft needed to perform the service. Moreover, we illustrate that, though designed for tactical planning, our new model and solution approach can provide insights for strategic decision-making, such as hub opening/closure, hub capacity expansion, and fleet composition and size.
by Su Shen.
Ph.D.
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Books on the topic "120405 Models of Engineering Design"

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Bergé, Jean-Michel. Models in System Design. Boston, MA: Springer US, 1997.

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Paolo, Orlandini, ed. Product design models. New York: Van Nostrand Reinhold, 1990.

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Janschek, Klaus. Mechatronic Systems Design: Methods, Models, Concepts. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2012.

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Arora, Jasbir S. Introduction to optimum design. New York: McGraw-Hill, 1989.

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Introduction to optimum design. 2nd ed. Amsterdam: Elsevier/Academic Press, 2004.

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Terry, Bahill, and Wymore A. Wayne, eds. Engineering modeling and design. Boca Raton, Fla: CRC Press, 1992.

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Conte, Samuel Daniel. Software engineering metrics and models. Menlo Park, Calif: Benjamin/Cummings Pub. Co., 1986.

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Buede, Dennis M. The engineering design of systems: Models and methods. 2nd ed. Hoboken, N.J: John Wiley & Sons, 2009.

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The engineering design of systems: Models and methods. New York: Wiley, 1999.

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Kreimeyer, Matthias. Complexity metrics in engineering design: Managing the structure of design processes. Heidelberg: Springer, 2011.

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Book chapters on the topic "120405 Models of Engineering Design"

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Bahrami, Ali, and Cihan H. Dagli. "Models of design processes." In Concurrent Engineering, 113–26. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3062-6_7.

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Badiru, Adedeji B. "Systems modeling for product design." In Systems Engineering Models, 167–83. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor &: CRC Press, 2019. http://dx.doi.org/10.1201/b22519-10.

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Badiru, Adedeji B. "Ergonomics in systems design and modeling." In Systems Engineering Models, 63–79. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor &: CRC Press, 2019. http://dx.doi.org/10.1201/b22519-4.

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Vajna, Sándor, C. Burchardt, P. Le Masson, A. Hatchuel, B. Weil, T. Bercsey, and F. Pilz. "Models and Procedures of Product Development." In Integrated Design Engineering, 1–80. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-19357-7_1.

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Micouin, Patrice. "Designing Solutions and Design Models." In Model-Based Systems Engineering, 127–49. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118579435.ch7.

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Barba, Paolo Di. "Field Models and Shape Design." In Lecture Notes in Electrical Engineering, 41–62. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-3080-1_4.

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Eckert, Claudia, and Rafaela Hillerbrand. "Models in Engineering Design: Generative and Epistemic Function of Product Models." In Design Research Foundations, 219–42. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73302-9_11.

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Anderl, Reiner, and Sven Kleiner. "Dependencies Between Design Product Models and Simulation Models." In Global Engineering, Manufacturing and Enterprise Networks, 275–82. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-0-387-35412-5_32.

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Wei, Wei, Wuxiang Zhu, and Guiping Lin. "Engineering Design Rules for Business Model Design." In Approaching Business Models from an Economic Perspective II, 101–18. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7058-2_6.

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Alnusair, Awny, and Tian Zhao. "Using Ontology Reasoning for Reverse Engineering Design Patterns." In Models in Software Engineering, 344–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12261-3_32.

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Conference papers on the topic "120405 Models of Engineering Design"

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Shafiei, Somayeh B., and Khurshid A. Guru. "Use of Numerical-Clustering Framework for End-Effector Tracking During Robot-Assisted Surgery." In 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/detc2017-67616.

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Imaging plays an important role in all clinical processes. One challenge in medical image data processing is detection and tracking objects and instruments, which faces complications arising from the developed medical image acquisition systems and also the nature of in-vivo medical images. Special properties of the in-vivo bio images such as noise, specular highlights, inhomogeneity, heterogeneity, varying luminosity, and background change, in addition to the changes of camera, out of camera view tools, and multiple moving tools (instrument tools, surgical suture, cutting instrument, tissue movement) make object detection and tracking in the biomedical image processing complicated. In this study, the k-means clustering method in combination with the level set active curve model are used to develop a platform for low-cost tracking of surgical tools in robotic surgery videos. After removing the image background, the smoothed image is used as input to the numerical method. This model tracks the robot tools even when the camera view changes, the tool is lost, the tissue is bleeding and moving, and the luminosity of the images changes. The developed model is validated using video frames of real and simulated robotic surgeries. The accuracy of model in tracking da vinci robot end-effectors for a video with 12000 frames, recorded at Roswell Park Cancer Institute, is 93%. Accuracy of proposed framework is compared to those for existing numerical models, DRLSE and Chan-Vese. The results show that proposed surgical robot tool tracking model is more efficient than existing computational models.
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Masri, Karim M., Mohammad I. Younis, and Shuai Shao. "Investigation of a Delayed Feedback Controller of MEMS Resonators." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12045.

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Controlling mechanical systems is an important branch of mechanical engineering. Several techniques have been used to control Microelectromechanical systems (MEMS) resonators. In this paper, we study the effect of a delayed feedback controller on stabilizing MEMS resonators. A delayed feedback velocity controller is implemented through modifying the parallel plate electrostatic force used to excite the resonator into motion. A nonlinear single degree of freedom model is used to simulate the resonator response. Long time integration is used first. Then, a finite deference technique to capture periodic motion combined with the Floquet theory is used to capture the stable and unstable periodic responses. We show that applying a suitable positive gain can stabilize the MEMS resonator near or inside the instability dynamic pull in band. We also study the stability of the resonator by tracking its basins of attraction while sweeping the controller gain and the frequency of excitations. For positive delayed gains, we notice significant enhancement in the safe area of the basins of attraction.
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Abdelshafy, M. H., and S. O. Oyadiji. "Penetration Behaviour of Steel Plates." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35229.

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A finite element analysis using ABAQUS v6.6 has been performed to investigate the penetration behaviour of different target structures under the impact velocities of 1000 & 1200 m/s. The analysis has been performed to study the effect of the target configuration and the effect of introducing a damping material like rubber within the target structure on the penetration behaviour of these targets. Three dimensional (3D) models of targets consisting of various discrete one, two and three layers of hardened steel have been developed. The total thickness of each single or multiple layer steel target is 25 mm. These targets have been subjected to the impact of a projectile which was either blunt or had a hemispherical end and is made from a tungsten rod. Furthermore, 3D models consisting of layers of a damping material sandwiched between steel layers have also been developed and analysed. It is found that a purely steel target of multiple layers but of the same total thickness as a single layer steel target produced less residual velocity. This implies that the multiple layer steel targets produced more penetration resistance and, therefore, absorbed more of the impact energy than the single layer steel target. Similarly, multiple layer composite targets comprising layers of a damping material sandwiched between steel layers produced a greater penetration resistance and less residual velocity than a single layer steel target. However, the multiple layer composite targets only produced a slightly greater penetration resistance and less residual velocity than a multiple layer steel target.
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Striz, Alfred G., and Keyur Thakore. "Strength and Stability Analyses of Retaining Structure Models for the Fracturing Fluid Characterization Facility." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0528.

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Abstract Millions of dollars are spent annually on hydraulic fracturing for oil and gas well stimulation. Various researchers have proposed models to optimize the stimulation treatment, with limited success due to a lack of understanding of the behavior of critical parameters in the models, especially the fracturing fluids. Thus, the Gas Research Institute and the U.S. Department of Energy are sponsoring a project at the University of Oklahoma to investigate fracturing fluids in a large physical fracture model, the Fracturing Fluid Characterization Facility (FFCF). This simulator was initially expected to consist of a parallel plate simulator as large as 16 ft high by 100 ft long, with an internal pressure as high as 1200 psi, to determine critical fluid parameters under full-scale operating conditions. A smaller and more economical version of the simulator (7 ft high by 9 1/3 ft long) has since been built and moved to its own facility. As the reaction forces of the originally intended structure were tremendous (over 275,000,000 lbf for a full-scale simulator), structural analyses were essential. Thus, static strength and stability (buckling) analyses were performed on various full-scale models and on the smaller final version of the pressure retaining structure for the FFCF simulator. An interior segment of each structural model consisting of the pressure chamber and the reaction beam/ plate/tie rod assemblies was modeled in detail and analyzed by the finite element method using the industry standard code MSC/NASTRAN together with the MSC/XL pre- and postprocessor. In addition to the linear analyses for all models, a material nonlinear analysis was run for Model 1. General buckling analyses by the finite element method were performed on square plates and on retaining structure plates with various boundary conditions to determine the influence of these conditions on the critical buckling loads. Finally, the full final model was analyzed for buckling proving the stability of the design.
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Vargas Hernandez, Noe, Jami J. Shah, and Steven M. Smith. "Cognitive Models of Design Ideation." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34903.

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The objective of this paper is to present a series of proposed cognitive models for specific components of design ideation. Each model attempts to explain specific cognitive processes occurring during ideation. Every model presented here is constructed with elements (i.e. cognitive processes) and theories available from cognitive psychology, human problem solving, mental imagery, and visual thinking. Every model in turn is an element of a higher-level cognitive model of design ideation. These models provide a better understanding of the components involved during ideation and their relationships.
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Li, Pengyi, Jing Sun, and Hai Wang. "Towards Code Generation from Design Models." In The 29th International Conference on Software Engineering and Knowledge Engineering. KSI Research Inc. and Knowledge Systems Institute Graduate School, 2017. http://dx.doi.org/10.18293/seke2017-133.

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Graessler, Iris, Julian Hentze, and Tobias Bruckmann. "V-MODELS FOR INTERDISCIPLINARY SYSTEMS ENGINEERING." In 15th International Design Conference. Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Croatia; The Design Society, Glasgow, UK, 2018. http://dx.doi.org/10.21278/idc.2018.0333.

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Ward, J., C. K. Tan, and R. J. Tucker. "Development of a Spectral Radiation Model to Predict the Transient Performance of a Metal Reheating Furnace." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11114.

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The use of computational fluid dynamics for simulation of combustion processes has made significant advances in recent years particularly for the design of individual burners and the prediction of pollutant formation and emission. However, the computational requirements of these models can still be too great for overall furnace thermal design purposes particularly if the transient performance is required. Thermal radiation is usually the dominant mode of heat transfer to the load or stock in industrial fuel-fired furnaces since the contribution of convection is relatively small. Thus prediction of the thermal performance of a furnace requires an accurate calculation of the complex radiation interchange between the surfaces and the combustion products. This can be achieved by the so-called Hottel zone method of radiation analysis and as a result this method has been applied to a wide range of industrial heating processes. The method sub-divides the non-isothermal furnace enclosure into a series of isothermal volume and surface zones and energy balances are then formulated and solved simultaneously for each zone. The computational demands are modest so that the process can be repeated successively throughout a period of furnace operation to simulate the transient behaviour of the system. However in these models all the surfaces are usually assumed to be grey and the radiation properties of the combustion products are normally represented by a mixture of grey and clear gases. These assumptions can lead to errors in the predictions, in applications such as the installation of high emissivity coatings on the furnace lining, where it is necessary to allow for the spectral variation in surface emissivity and the banded nature of the radiation properties of carbon dioxide and water vapour in the combustion gases. Consequently the proposed paper describes the development of “spectral” zone model, which takes these effects into account, to predict the transient performance of a furnace heating steel bars to a discharge temperature of 1200°C. The model also allows for broadening of the spectral bands with changes in the temperature of the combustion products. The work differs from that in previous papers on this type of model, which have been confined to steady-state simulations and do not allow for broadening. Finally the model is applied to investigate the effect of coating the refractory lining of the furnace with high emissivity materials.
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Cramer, Evin. "Using approximate models for engineering design." In 7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-4716.

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Hehenberger, Peter, Alexander Egyed, and Klaus Zeman. "Consistency Checking of Mechatronic Design Models." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28615.

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During all phases of the design process there is a need to build models. Hierarchical models are very important tools for complex activities such as engineering design. In engineering of high performance products, mathematical modeling and simulation, i.e. experimenting with computer-based models, is an increasingly important technique for solving problems, evaluating solutions and making decisions. However, large design models may contain thousands of model elements. Designers easily get overwhelmed maintaining the correctness of such design models over time. Not only is it hard to detect new errors when the model changes but it is also hard to keep track of known errors. In the software engineering community this problem is known as a consistency problem and errors in models are known as inconsistencies. This paper presents an approach for consistency checking of mechatronic design models.
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Reports on the topic "120405 Models of Engineering Design"

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Nitta, C., R. Logan, S. Chidester, and M. Foltz. Benefit/Cost Ratio in Systems Engineering: Integrated Models, Tests, Design, and Production. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/15011407.

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Wemple, C. A., B. G. Schnitzler, and J. M. Ryskamp. Neutronics methods, models, and applications at the Idaho National Engineering Laboratory for the advanced neutron source reactor three-element core design. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/196552.

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Gunay, Selim, Fan Hu, Khalid Mosalam, Arpit Nema, Jose Restrepo, Adam Zsarnoczay, and Jack Baker. Blind Prediction of Shaking Table Tests of a New Bridge Bent Design. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/svks9397.

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Considering the importance of the transportation network and bridge structures, the associated seismic design philosophy is shifting from the basic collapse prevention objective to maintaining functionality on the community scale in the aftermath of moderate to strong earthquakes (i.e., resiliency). In addition to performance, the associated construction philosophy is also being modernized, with the utilization of accelerated bridge construction (ABC) techniques to reduce impacts of construction work on traffic, society, economy, and on-site safety during construction. Recent years have seen several developments towards the design of low-damage bridges and ABC. According to the results of conducted tests, these systems have significant potential to achieve the intended community resiliency objectives. Taking advantage of such potential in the standard design and analysis processes requires proper modeling that adequately characterizes the behavior and response of these bridge systems. To evaluate the current practices and abilities of the structural engineering community to model this type of resiliency-oriented bridges, the Pacific Earthquake Engineering Research Center (PEER) organized a blind prediction contest of a two-column bridge bent consisting of columns with enhanced response characteristics achieved by a well-balanced contribution of self-centering, rocking, and energy dissipation. The parameters of this blind prediction competition are described in this report, and the predictions submitted by different teams are analyzed. In general, forces are predicted better than displacements. The post-tension bar forces and residual displacements are predicted with the best and least accuracy, respectively. Some of the predicted quantities are observed to have coefficient of variation (COV) values larger than 50%; however, in general, the scatter in the predictions amongst different teams is not significantly large. Applied ground motions (GM) in shaking table tests consisted of a series of naturally recorded earthquake acceleration signals, where GM1 is found to be the largest contributor to the displacement error for most of the teams, and GM7 is the largest contributor to the force (hence, the acceleration) error. The large contribution of GM1 to the displacement error is due to the elastic response in GM1 and the errors stemming from the incorrect estimation of the period and damping ratio. The contribution of GM7 to the force error is due to the errors in the estimation of the base-shear capacity. Several teams were able to predict forces and accelerations with only moderate bias. Displacements, however, were systematically underestimated by almost every team. This suggests that there is a general problem either in the assumptions made or the models used to simulate the response of this type of bridge bent with enhanced response characteristics. Predictions of the best-performing teams were consistently and substantially better than average in all response quantities. The engineering community would benefit from learning details of the approach of the best teams and the factors that caused the models of other teams to fail to produce similarly good results. Blind prediction contests provide: (1) very useful information regarding areas where current numerical models might be improved; and (2) quantitative data regarding the uncertainty of analytical models for use in performance-based earthquake engineering evaluations. Such blind prediction contests should be encouraged for other experimental research activities and are planned to be conducted annually by PEER.
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4

Modlo, Yevhenii O., Serhiy O. Semerikov, Stanislav L. Bondarevskyi, Stanislav T. Tolmachev, Oksana M. Markova, and Pavlo P. Nechypurenko. Methods of using mobile Internet devices in the formation of the general scientific component of bachelor in electromechanics competency in modeling of technical objects. [б. в.], February 2020. http://dx.doi.org/10.31812/123456789/3677.

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An analysis of the experience of professional training bachelors of electromechanics in Ukraine and abroad made it possible to determine that one of the leading trends in its modernization is the synergistic integration of various engineering branches (mechanical, electrical, electronic engineering and automation) in mechatronics for the purpose of design, manufacture, operation and maintenance electromechanical equipment. Teaching mechatronics provides for the meaningful integration of various disciplines of professional and practical training bachelors of electromechanics based on the concept of modeling and technological integration of various organizational forms and teaching methods based on the concept of mobility. Within this approach, the leading learning tools of bachelors of electromechanics are mobile Internet devices (MID) – a multimedia mobile devices that provide wireless access to information and communication Internet services for collecting, organizing, storing, processing, transmitting, presenting all kinds of messages and data. The authors reveals the main possibilities of using MID in learning to ensure equal access to education, personalized learning, instant feedback and evaluating learning outcomes, mobile learning, productive use of time spent in classrooms, creating mobile learning communities, support situated learning, development of continuous seamless learning, ensuring the gap between formal and informal learning, minimize educational disruption in conflict and disaster areas, assist learners with disabilities, improve the quality of the communication and the management of institution, and maximize the cost-efficiency. Bachelor of electromechanics competency in modeling of technical objects is a personal and vocational ability, which includes a system of knowledge, skills, experience in learning and research activities on modeling mechatronic systems and a positive value attitude towards it; bachelor of electromechanics should be ready and able to use methods and software/hardware modeling tools for processes analyzes, systems synthesis, evaluating their reliability and effectiveness for solving practical problems in professional field. The competency structure of the bachelor of electromechanics in the modeling of technical objects is reflected in three groups of competencies: general scientific, general professional and specialized professional. The implementation of the technique of using MID in learning bachelors of electromechanics in modeling of technical objects is the appropriate methodic of using, the component of which is partial methods for using MID in the formation of the general scientific component of the bachelor of electromechanics competency in modeling of technical objects, are disclosed by example academic disciplines “Higher mathematics”, “Computers and programming”, “Engineering mechanics”, “Electrical machines”. The leading tools of formation of the general scientific component of bachelor in electromechanics competency in modeling of technical objects are augmented reality mobile tools (to visualize the objects’ structure and modeling results), mobile computer mathematical systems (universal tools used at all stages of modeling learning), cloud based spreadsheets (as modeling tools) and text editors (to make the program description of model), mobile computer-aided design systems (to create and view the physical properties of models of technical objects) and mobile communication tools (to organize a joint activity in modeling).
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Soroko, Nataliia V., Lorena A. Mykhailenko, Olena G. Rokoman, and Vladimir I. Zaselskiy. Educational electronic platforms for STEAM-oriented learning environment at general education school. [б. в.], July 2020. http://dx.doi.org/10.31812/123456789/3884.

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The article is devoted to the problem of the use of educational electronic platform for the organization of a STEAM-oriented environment of the general school. The purpose of the article is to analyze the use of educational electronic platforms for organizing the STEAM-oriented school learning environment and to identify the basic requirements for supporting the implementation and development of STEAM education in Ukraine. One of the main trends of education modernization is the STEAM education, which involves the integration between the natural sciences, the technological sciences, engineering, mathematics and art in the learning process of educational institutions, in particular, general school. The main components of electronic platform for education of the organization STEAM-oriented educational environment should be open e-learning and educational resources that include resources for students and resources for teachers; information and communication technologies that provide communication and collaboration among students; between teachers; between students and teachers; between specialists, employers, students, and teachers; information and communication technologies that promote the development of STEAM education and its implementation in the educational process of the school; online assessment and self-assessment of skills and competences in STEAM education and information and communication technologies fields; STEAM education labs that may include simulators, games, imitation models, etc.; STEAM-oriented educational environment profiles that reflect unconfirmed participants’ data, their contributions to projects and STEAM education, plans, ideas, personal forums, and more. Prospects for further research are the design of an educational electronic platform for the organization of the STEAM-oriented learning environment in accordance with the requirements specified in the paper.
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