某混合动力汽车中央通道一体化设计与优化分析  

Integrated design and simulation optimization analysis of a domestic hybrid electricvehicle central tunnel

作　　者：张沈生 王丽娟[1] 陈宗渝[1] 王栋 吴晓东 ZHANG Shensheng;WANG Lijuan;CHEN Zongyu;WANG Dong;WU Xiaodong(School of Mechatronics Engineering,Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学机电工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2018年第3期280-285,共6页Journal of Nanchang University(Engineering & Technology)

基　　金：国家自然科学基金资助项目(51165034);江西省自然科学基金资助项目(2013BAB206029)

摘　　要：为研究某国产混合动力SUV汽车车身结构的安全性能,依据中国研发新车评价规程(C-NCAP)构建了在台车以50 km·h-1的速度撞击整车侧面的有限元模型,并且将该混合动力SUV汽车进行了仿真分析。碰撞试验显示该国产混合动力SUV汽车出现的中央通道弯曲变形严重、侧地板褶皱程度大而导致的动力电池包受到挤压风险的问题,分析了该问题产生的原因同时提出了结构一体化设计方案。一体化设计加强了中央通道的抗应力变形能力,下侧地板褶皱程度减小,动力电池包受到挤压或破裂风险降低。最后通过实车试验和仿真结果表明该优化方案的可行性。In order to study the safety performance of a domestic hybrid SUV vehicle body structure, a finite el- ement model of the side of the vehicle colliding with the vehicle at a speed of 50 km . h-1 was constructed according to the China R ＆ D New Car Evaluation Regulation （C-NCAP） ,and the hybrid SUV car was simulated.The crash test showed that the central hybrid vehicle produced by the domestic hybrid SUV has severe bending deformation and a large degree of side floor wrinkling, which caused the battery pack to be squeezed at risk.The cause of the problem was analyzed and the structural optimization design scheme was also proposed. The simulation results showed that the integrated design strengthened the anti-stress deformation ability of the central tunnel, reduced the degree of floor under-floor fold, and reduced the risk of the power battery pack being crushed or crushed.Finally, the actual vehicle test and simulation results showed that the optimization scheme is feasible.

关 键 词：混合动力汽车 侧面碰撞 结构优化 中央通道 仿真分析 

分 类 号：TH122[机械工程—机械设计及理论]