A Platformization Optimization Design Method for SOB Structures

Liu Heng, Zheng Hao, Wang Yuchao, Li Wei, Fan Song Guangzhou Automobile Group Co., Ltd. Automotive Research & Development Center, Guangzhou 511434） （ Abstract Based on the concept of“energy avoidance” structure design, an advanced force transfer is designed【 】with energy absorption structure represented by Energy Absorbing Ring (EAR). By dividing the collision area of a SUV, orthogonal test matrix is designed, and a high precision response surface model is established based on the simulation results. The optimization schemes of force distribution and energy absorption matching in different collision areas are obtained, and the frontal collision conditions are simulated and verified. Combined with the characteristics of platform development, the structure of MPV with the same platform as the SUV is improved, and the simulation results that meet the requirements of the target are obtained. The error between the body deformation obtained by response surface model and the actual simulation results is 11%, which proves that the response surface model is accurate and credible. Based on the above optimization process, a platformization optimization design method and process of Small Overlap Barrier (SOB) structures with“control force transfer and energy absorption in different impact areas”are summarized.

Key words: Energy avoidance structure, SOB, EAR, Response surface model, Platformization

【引用格式】 , , , . [J]. , 2021(7): 21-25.

刘衡 郑颢 王玉超 等 一种平台化小偏置碰撞结构优化设计方法 汽车技术LIU H, ZHENG H, WANG Y C, et al. A Platformization Optimization Design Method for SOB Structures[J]. Automobile Technology, 2021(7): 21-25.