Shape Optimization of Solid Structures Using the Growth-Strain Method (Application to Chassis Components) 921063
This paper describes the shape optimization analysis of solid structures such as chassis components of a car, where the shape optimization problems of linearly elastic structures are treated to improve strength or to reduce weight of solid structures. The optimization method used here is the growth-strain method, and the shape optimization system is developed based on this method. The growth-strain method, which modifies a shape by generating bulk strain, was previously proposed for analysis of the uniform-strength shape. The generation law of the bulk strain is given as a function of a distributed parameter to be uniformed, such as von Mises stress. Two improved generation laws are presented. The first law makes the distributed parameter uniform while controlling the structural volume to a target value. The second law makes the distributed parameter uniform while controlling the maximum value of the distributed parameter to a target value. A simple example using a cantilever beam and examples applied to suspension arms are presented. The results show sufficient validity and practicality of this method and system in strength improvement and weight reduction of solid structures.
Citation: Shimoda, M., Sakurai, T., Kondo, Y., and Azegami, H., "Shape Optimization of Solid Structures Using the Growth-Strain Method (Application to Chassis Components)," SAE Technical Paper 921063, 1992, https://doi.org/10.4271/921063. Download Citation
Affiliated:
Mitsubishi Motors Corp., Toyohashi University of Technology
Pages: 10
Event:
International Conference On Vehicle Structural Mechanics & Cae
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the Eighth International Conference on Vehicle Structural Mechanics and Cae-P-258, SAE 1992 Transactions: Journal of Passenger Cars-V101-6
Related Topics:
Chassis
Body structures
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