NDLI: A Stochastic Optimization Application for Vehicle Structures

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A Stochastic Optimization Application for Vehicle Structures

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Fu, Yan Steve, C. Wang Urmila, M. Diwekar Kemal, H. Sahin
Abstract	With the continuous improvement of powerful computers, vehicle structural designs have been addressed using computational methods, resulting in more efficient development of new vehicles. Most simulation-based optimization generates deterministic optimal designs without considering variability effects in modeling, simulation, and/or manufacturing. This paper presents an application of a new stochastic optimization method for vehicle side impact design. Nonlinear response surface models are employed for approximations of the side impact related test performance functions to conduct this study. The main goal is to maintain or enhance the vehicle side impact test performance while minimizing the vehicle weight under various uncertainties. The new algorithm alleviates the computational burden of excessive model evaluations by estimating the objective and constraint functions during the optimization process through a reweighting method. The efficiency and accuracy of this algorithm is presented through an actual vehicle safety design problem.
Sponsorship	Design Engineering Division and Computers and Information in Engineering Division
Starting Page	361
Ending Page	370
Page Count	10
File Format	PDF
ISBN	0791836223
DOI	10.1115/DETC2002/DAC-34075
e-ISBN	0791836037
Volume Number	Volume 2: 28th Design Automation Conference
Conference Proceedings	ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2002-09-29
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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