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Design Sensitivity Analysis and Optimization Tool for Concurrent Engineering

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Concurrent Engineering: Tools and Technologies for Mechanical System Design

Part of the book series: NATO ASI Series ((NATO ASI F,volume 108))

Abstract

This paper together with the following two papers present emerging technologies for development of design sensitivity analysis (DSA) and optimization that can be used for concurrent engineering. A summary of recently developed unified continuum DSA methods for linear and nonlinear structural systems is presented. Design sensitivities of static and dynamic responses of elastic solids and built-up structures with respect to material property, sizing, shape, and configuration design variables are considered. For DSA of acoustic response, acousto-elastic systems are treated. For DSA of nonlinear structural systems, both geometric and material nonlinearities are considered. The adjoint variable and direct differentiation methods are used to derive explicit design sensitivity expressions that can be evaluated numerically using analysis results from established finite element analysis (FEA) codes. It is demonstrated that the continuum based DSA method allows design sensitivity computations to be carried out using established FEA codes with respect to geometric design parameters that are employed in computer-aided design (CAD) tools, so that industry standard tools can be exploited in concurrent engineering. A DSA and optimization (DSO) tool with a visually driven user interface is developed to allow design engineers to easily create geometric, design, and analysis models; define performance measures; perform DSA; and carry out a four-step interactive design process that includes visual display of design sensitivity, what-if study, trade-offs, and interactive design optimization.

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Author information

Authors and Affiliations

  1. Center for Simulation and Design Optimization, College of Engineering, The University of Iowa, Iowa City, Iowa, 52242, USA

    Kyung K. Choi & Kuang-Hua Chang

Authors
  1. Kyung K. Choi
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  2. Kuang-Hua Chang
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Editor information

Editors and Affiliations

  1. Center for Computer-Aided Design, The University of Iowa, 208 Engineering Research Facility, Iowa City, IA, 52242-1000, USA

    Edward J. Haug

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© 1993 Springer-Verlag Berlin Heidelberg

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Choi, K.K., Chang, KH. (1993). Design Sensitivity Analysis and Optimization Tool for Concurrent Engineering. In: Haug, E.J. (eds) Concurrent Engineering: Tools and Technologies for Mechanical System Design. NATO ASI Series, vol 108. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78119-3_23

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  • DOI: https://doi.org/10.1007/978-3-642-78119-3_23

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-78121-6

  • Online ISBN: 978-3-642-78119-3

  • eBook Packages: Springer Book Archive

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