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Shape and Topology Optimization of a Car Body with Multiple Loading Conditions
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English
Abstract
In various practical structural design problems, decision of a layout of material or stiffeners in the given design space satisfying some design constraints is the most difficult task for design engineers. Also, they must consider many possible cases for safety, performance and some other requirements. But it is very difficult to solve this type of layout (topology) problem by any conventional structural optimization techniques because its mathematical modeling of topology is so complex. To solve this problem, we employed the new topology optimization technique using the homogenization method that was recently introduced by Bensøe and Kikuchi. The method gives the minimum compliance design under certain material constraint. This technique was also extended to three dimensional shells and three dimensional solids by Suzuki and Kikuchi.
In this paper, shape and topology optimization problem under multi-loading conditions is discussed. Various car body design problems are solved to justify the validity and the strength of the present approach for engineering applications.
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Citation
Fukushima, J., Suzuki, K., and Kikuchi, N., "Shape and Topology Optimization of a Car Body with Multiple Loading Conditions," SAE Technical Paper 920777, 1992, https://doi.org/10.4271/920777.Also In
References
- Bensøe M.P. Kikuchi N. “Generating Optimal Topologies in Structural Design using a Homogenization Method,” Computer Methods in Applied Mechanics and Engineering 71 1988 197 224
- Suzuki K. Kikuchi N. “Homogenization Method for Shape and Topology Optimization,” Computer Methods in Applied Mechanics and Engineering
- Suzuki K. “Shape and Layout Optimization using Homogenization Method,” University of Michigan 1991