Topology Optimization of Electric Vehicle Body in White Based on SIMP Method

Abstract:

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Based on Solid Isotropic Microstructure with Penalization (SIMP) method, a mathematical model for topology optimization of EV is proposed, which has design objective as minimizing compliance, with volumetric and geometric constraints. To make results more engineering value, the BIW optimization of EV takes into account not only the static loads, but also the torsion load in turning and moment load in braking process of EV. A number of implementation aspects in solving the numerical instability problem generated in optimization process are discussed, including checkboard patterns and mesh-dependency. Topology optimization of EV body in white with geometry and volumetric constraints is conducted, showing effectiveness of the proposed model.

Info:

Periodical:

Advanced Materials Research (Volumes 308-310)

Edited by:

Jian Gao

Pages:

606-609

DOI:

10.4028/www.scientific.net/AMR.308-310.606

Citation:

S. Yang et al., "Topology Optimization of Electric Vehicle Body in White Based on SIMP Method", Advanced Materials Research, Vols. 308-310, pp. 606-609, 2011

Online since:

August 2011

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Price:

$35.00

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