A simple configuration is described and used for computational and experimental investigations including thermal and mechanical fluid structure interactions for hypersonic flow conditions. the numerical modelling incl...
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ISBN:
(纸本)9780791844878
A simple configuration is described and used for computational and experimental investigations including thermal and mechanical fluid structure interactions for hypersonic flow conditions. the numerical modelling includes all relevant heat transfer mechanisms, takes into account the changes due to the heated and deformed structure and shows a good agreement with experiments.
Configuration management of modular mechatronics products is an effective way of rapid development for the modular mechatronics industry. By summarizing the relevant literature, the concept of product configuration is...
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ISBN:
(纸本)9780791844861
Configuration management of modular mechatronics products is an effective way of rapid development for the modular mechatronics industry. By summarizing the relevant literature, the concept of product configuration is illustrated. then this article sums up the latest research progress for configuration design process modeling, configuration knowledge management, implementation method for configuration management methods. Finally, the weak aspects of present research are discussed, and the following research topics are determined.
As the design of mechatronic systems relies on different technical and scientific disciplines, it is often difficult to anticipate, at the earliest, the consequences of design choices on the final product. the role of...
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ISBN:
(纸本)9780791844854
As the design of mechatronic systems relies on different technical and scientific disciplines, it is often difficult to anticipate, at the earliest, the consequences of design choices on the final product. the role of the evaluation process is to support designers each time engineering choices must be made or justified. Being able to estimate the impact of design decisions on key technical performance indicators is one objective of our research. After having presented the activities of the evaluation process, we propose a meta-model of the data required by evaluation in the context of the systemsengineering framework. then we investigate how the top down and bottom up tracing of technical requirements through Block systems and between systemsengineering layers of the 'onion model' may help designers analyze the consequences of design decisions on the final product. the research is illustrated through the development of a wheelchair with electrical assistance so as to allow reduced mobility people to move and work outside with less tiredness.
Computer-aided engineering is widely used in various areas including manufacturing, requirement planning and product design. these specific CAE tools, here called expert tools, manipulate large amounts of data. Some o...
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ISBN:
(纸本)9780791844861
Computer-aided engineering is widely used in various areas including manufacturing, requirement planning and product design. these specific CAE tools, here called expert tools, manipulate large amounts of data. Some of those data also need to be processed by other expert tools to allow a flexible collaboration between various experts. this article proposes an approach to exchange data of various formats manipulated by different expert tools through model-based technologies. the presented approach is validated by its implementation on an academic use case involving commercial industrial tools.
In this paper we consider a parametric model related to the elasticity problem in which many parameter describing he material and/or the geometry will considered as extra-coordinates, allowing for the construction, fr...
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ISBN:
(纸本)9780791844847
In this paper we consider a parametric model related to the elasticity problem in which many parameter describing he material and/or the geometry will considered as extra-coordinates, allowing for the construction, from a single solution, of an abaqus containing the solution for each choice of the parameters considered as extra-coordinates. In order to circumvent the curse of dimensionality related to the high number of dimensions considered in the model, a separated representation will be considered.
Bone tissue engineering currently represents one of the most interesting alternatives to autologous transplants and their drawbacks in the treatment of large bone defects. Mesenchymal stem cells are used to build new ...
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ISBN:
(纸本)9780791844878
Bone tissue engineering currently represents one of the most interesting alternatives to autologous transplants and their drawbacks in the treatment of large bone defects. Mesenchymal stem cells are used to build new bone in vitro in a bioreactor. their stimulation and our understanding of the mechanisms of mechanotransduction need to be improved in order to optimize the design of bioreactors. In this study, several geometries of bioreactor were analyzed experimentally and biological results were linked with numerical simulations of the flow inside the bioreactor. these results will constitute a base for an improved design of the existing bioreactor.
In this paper, a complex multiphysics system is modeled using two different energy-based graphical techniques: Bond Graph and Energetic Macroscopic Representation. these formalisms can be used together to analyze, mod...
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ISBN:
(纸本)9780791844878
In this paper, a complex multiphysics system is modeled using two different energy-based graphical techniques: Bond Graph and Energetic Macroscopic Representation. these formalisms can be used together to analyze, model and control a system. the BG is used to support physical, lumped-parameter modeling and analysis processes, and then EMR is used to facilitate definition of a control structure through inversion-based methodology. this complementarity between both of these tools is set out through a helicopter flight control subsystem.
Product design involves a multitude of actors who have complementary knowledge and responsibility about the product under development. Coupling together their views-points, particularly these of product designers and ...
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ISBN:
(纸本)9780791844861
Product design involves a multitude of actors who have complementary knowledge and responsibility about the product under development. Coupling together their views-points, particularly these of product designers and engineeringdesigners in the upstream phases of the design, has the objectives to make the collaboration easier and to improve the product from both of their expertises. the Product/Process multi-view model is a collaborative tool which supports engineeringdesigners during product development processes. It allows the structuring and tracing of relative knowledge of engineeringdesigners on the product. We make the assumption that Product/Process multi-view model could also be used to create relationships withthe product designer's representation. the paper deals withthis product model and illustrates the possible connection between engineering knowledge and product design knowledge.
Model-based systemsengineering (MBSE) is an approach to improve traditional document-based systemsengineering approach through the use of a system model. In the current practice of system developments, there exists ...
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ISBN:
(纸本)9780791844861
Model-based systemsengineering (MBSE) is an approach to improve traditional document-based systemsengineering approach through the use of a system model. In the current practice of system developments, there exists a large gap between systemsengineering activities and engineering analyses, because systems engineers and engineering analysts are using different models, tools and terminology. the gap results in inefficiencies and quality issues that can be very expensive. this work presents an integrated modeling and analysis capability that bridges the gap. the technical approach is based on integrating SysML modeling tools with process integration and design optimization framework. this approach connects SysML models with various engineeringanalysis tools through a common interface. A capability was developed to automatically generate analysis models from a system model and then execute the analytical models. Requirements conformance analysis was performed using results of engineeringanalysis. A technique was developed to define optimization problems in SysML, where requirements were used as design constraints. the integrated system modeling and analysis capability was demonstrated using an automobile brake pad design example. the integrated toolset was used to understand impacts of requirements changes in the SysML model and to find a new designthat meets the new requirements through engineeringdesign optimization.
Human-automation interaction in complex systems is common, yet design for this interaction is often conducted without explicit consideration of the role of the human operator. Fortunately, there are a number of modeli...
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ISBN:
(纸本)9780791844854
Human-automation interaction in complex systems is common, yet design for this interaction is often conducted without explicit consideration of the role of the human operator. Fortunately, there are a number of modeling frameworks proposed for supporting this design activity. However, the frameworks are often adapted from other purposes, usually applied to a limited range of problems, sometimes not fully described in the open literature, and rarely critically reviewed in a manner acceptable to proponents and critics alike. the present paper introduces a panel session wherein these proponents (and reportedly one or two critics) can engage one another on several agreed questions about such frameworks. the goal is to aid non-aligned practitioners in choosing between alternative frameworks for their human-automation interaction design challenges.
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