摘要
建立了交流充电桩的桁架有限元模型,对充电桩桁架受撞时的载荷进行了分析,考虑了桁架型钢厚度、汽车保险框有效高度、汽车保险杠距地高度以及车速对充电桩撞击响应的影响,得到了各情况下充电桩的最大应力与最大变形情况。结果表明,充电桩最大应力与最大变形将随桁架型钢厚度的增大而减小,将随汽车保险框有效高度、汽车保险杠距地高度以及车速的增大而增大;最大应力及最大变形与保险杠有效高度、汽车车速之间大致呈线性变化关系。
The crash response of the electric vehicle AC charging spot was analyzed due to different hit conditions. The FE model of the charging spot truss was firstly set up. Then the crash responses of the charging spot under different truss steel thicknesses, different bumper highnesses, different bumper-ground distances and different vehicle velocities were investigated, with the maximum stress and the max deformation obtained. The study shows that the max stress and the max deformation can be reduced as the truss steel thickness is increased, while the result will be opposite as the bumper height, the ground-bumper distance, or the vehicle velocity is increased. Besides, linear relation is shown between the max stress ＆ deformation and the bumper height ＆ vehicle velocity. The achievements are of reference value for the crash study and improvement of the charging spots.
出处
《电源技术》
CAS
CSCD
北大核心
2013年第2期259-262,共4页
Chinese Journal of Power Sources
