新型电动汽车车架结构的研究_中英文翻译.doc

A Study on New Frame Structures for New Generation Electric Vehicle
新型电动汽车车架结构的研究

Abstract
A new frame structure for an electric vehicle "KAZ-II" is designed and investigated by static and dynamic Finite Element Method (FEM) simulations. KAZ-II is a newly developed second-prototype EV based on the 8-wheeler electric vehicle KAZ, that adopted a variety of innovative technologies such as “Component Built-in Frame (CBF)” in which all ponents needed for driving such as batteries, invertors, DC-DC converters are fixed. The body structure designed in this study posed of CBF with thoroughly reinforced new upper frame structure and crumple zones for impact safety. Static FEM simulations are conducted for investigating the rigidity of this structure. Results of those simulations shows that the bending rigidity of this new frame structure is improved by 402%, and the torsional rigidity is improved by 104%, compared with those of KAZ. Dynamic FEM simulations are also carried out to investigate the impact safety of this structure. On the simulations, newly designed crumple structural models collide into a rigid barrier from an initial velocity of [m/s]. Results of those simulations indicate that; 1) this structure buckles regularly and decelerates the vehicle moderately within 20 [G], deceleration that human can survive, and 2) this structure keeps the cabin structure unstressed and prevents the cabin from deforming so that human would be uninjured. The results of this study provide a prospect of designing rigid and safe body structure for electric vehicles, and show the EV’s advantages towards future vehicle systems.

Keywords: EV (electric vehicle), simulation, Finite Element Analysis, component, safety.
摘要:KAZ-II电动车所采用的新车架结构的设计和研究过程是利用静态和动态的有限元方法进行模拟的过程。KAZ-II电动汽车是新开发的第二代电动汽车,是根据8个轮子驱动的KAZ电动汽车进行研究的。它采用了一系列革命性技术,例如”部件内置到车架的技术(CBF)“,在这种技术中,所有驱动所需要的部件,如电池组,换流器,数模转换器都是固定的。这项研究的主体结构是由CBF构成的,加以强化的新颖的上部结构和压皱区域以应对冲击时的稳定性。静态有限元方法是用来进行刚度仿真,仿真的结构表明,与KAZ的车架结构相比较,这种车架的弯