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

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 308-310)
• Pages: 606-609
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.308-310.606
• Online since: August 2011
• Authors: Shu Yang, Chang Qi, Ping Hu, Zhi Yong Wei, Ying Li Wang
• Keywords: Body-In-White, Compliance Minimization, Electric Vehicle (EV), Topology Optimisation

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