文档介绍：??????????? 194535455 1 ????????ц???仈???????????????21ц???????????????????????????????????????????????????????傦????????????????????????????????????а????????????儈?????????????????????????儈??????а????傦????????????к???僘??????????????????????????????????傦?????????????????????????????????????????????????????????????????儈???????????????а? ????ウ???ь仾?????????ъ????EQ6120??????????????а????????CAD?????CATIA??????僘?й??????????????й???????????????????Hypermesh ?????????????????僘?????????й????Optistruct??н???л??僘????????????????????????Optistruct???????????????僘????仁????????????????????????????????? Hyperview ???????о???????????傼????????????僘????????????ф???????????????????????僘???????????? ??????????????????????????????????????????? 194535455 2 Abstract In recent years in the face of the world oil resources to reduce induced energy crisis, 21st century saw the birth of new green cars, pure electric buses. The biggest advantage of electric buses is that using renewable energy - power can reduce dependence on oil.. It is in the running process, produces few nitrogen-pounds, more environmentally friendly. For the car, kerbed mass is larger, higher fuel consumption. Also for pure electric bus, kerbed mass is heavier, power consumption is larger, under certain conditions, the battery, mileage will be very short. In the pure electric bus, body frame quality accounted for vehicle total mass of relatively large, if can reduce the frame of quality and endurance of electric vehicles will be improved. How to weight loss for pure electric passenger car, the theoretical basis and data support for the finite element analysis. By the finite element software for the unitized body structure analysis results of higher accuracy, is the development process of the bus is one of the important research object of this paper is the Dongfeng pany of car of new energy industry manufacturing EQ6120 of pure electric bus full bearing type body frame. The first step is to provide pany with the CAD