Journal article
An Extension of the Material Derivative Method for Configuration Design Sensitivity Analysis
Mechanics of structures and machines, Vol.20(4), pp.459-498
01/01/1992
DOI: 10.1080/08905459208905177
Abstract
Configuration design variation of built-up structures that include truss, beam, plane elastic solid, and plate design components can be characterized by changes in the domain shape and orientation of design components. The material derivative method of shape design sensitivity analysis is extended to develop a continuum configuration design sensitivity analysis method for built-up structures by accounting for effects of both shape and orientation changes in the same energy equation. Variations of energy bilinear and load linear forms, with respect to both shape and orientation design variables, are derived for each structural component. Using the adjoint variable or direct differentiation method, configuration design sensitivity results for built-up structures are obtained in terms of the design velocity fields. The relationship between design parameterizations and design velocity fields is discussed for line and surface design components. A numerical method is developed to evaluate these configuration design sensitivity expressions, using analysis results from an established finite-element analysis code. The configuration design sensitivity analysis method is demonstrated using examples.
Details
- Title: Subtitle
- An Extension of the Material Derivative Method for Configuration Design Sensitivity Analysis
- Creators
- Kyung K Choi - DEPARTMENT OF MECHANICAL ENGINEERING AND CENTER FOR COMPUTER AIDED DESIGN COLLEGE OF ENGINEERING , THE UNIVERSITY OF IOWASung-Ling Twu - DEPARTMENT OF MECHANICAL ENGINEERING AND CENTER FOR COMPUTER AIDED DESIGN COLLEGE OF ENGINEERING , THE UNIVERSITY OF IOWA
- Resource Type
- Journal article
- Publication Details
- Mechanics of structures and machines, Vol.20(4), pp.459-498
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/08905459208905177
- ISSN
- 0890-5452
- eISSN
- 1525-612X
- Language
- English
- Date published
- 01/01/1992
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064204902771
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