【文章內(nèi)容簡介】 operating principle, structure and design plan were described in the paper, and a model of the electromagic energy regenerative suspension was built. Energy saving potential of this suspension has been studied by simulation with CARSIM and MATLAB/SIMULINK software. The result shows that the electromagic energy regenerative suspension can recover some of the vibration energy. It is known from simulation results that structural damping, energy regenerative element damper and charging circuit performance are the main factors which influence energy regeneration efficiency of energy regenerative elements.Key Words: Suspension。 Electromagic energy regenerative type。 Design。 Energy saving8 / 17基于實物的汽車后碰仿真中移動小車有限元模型研究董學勤 1 朱西產(chǎn) 1 楊輝 2 李佳琦 1（1. 同濟大學 汽車安全技術研究所；2. 上海機動車檢測中心）【摘要】基于上海機動車檢測中心的實物建立了后碰撞移動小車CAE模型，針對某型轎車進行了后碰撞有限元仿真，分析了移動剛性墻模型和移動小車模型對后碰撞仿真結(jié)果的影響，以及移動小車模型對仿真結(jié)果準確性的重要作用。通過對比分析主要零部件的潰縮變形量可知，移動剛性墻模型與移動小車模型的計算結(jié)果差別較大；剛性材料移動小車模型和彈性材料移動小車模型的計算結(jié)果差別較小。主題詞：汽車 后碰撞 仿真 移動小車 剛性墻 Study on Finite Element Model of Moving Impactor for Rearend Crash Simulation based on Real ObjectDong Xueqin1, Zhu Xichan1, Yang Hui2, Li Jiaqi1(1. Automotive Safety Technology Institute of Automotive College of Tongji University。 2. Shanghai Motor Vehicle Inspection Center)【Abstract】In this paper a CAE model of rearend crash movingimpactor is built base on realobject from the Shanghai Motor Vehicle Inspection Center (SMVIC). And rear crash finite element simulation is carried out for a passenger car, then the influence of moving rigid wall model and the moving impactor model on rear crash simulation result is analyzed, the significance of moving impactor model on accuracy of simulation result is also analyzed. It is known from paring and analyzing crumple deformation of main ponents that calculation results of the moving rigid wall model differ greatly with that of the moving impactor model。 whereas the calculation results of the rigid material moving impactor model differ slightly with that of elastic material moving impactor model.9 / 17Key words: Automobile。 Rearend crash。 Simulation。 Movingimpactor。 Rigidwall車身輕量化系數(shù)的決定因素及其優(yōu)化羊 軍 葉永亮 汪侃磊（上海汽車集團股份有限公司）【摘要】介紹了車身設計評價的關鍵指標——車身輕量化系數(shù)，闡述了車身輕量化系數(shù)的優(yōu)化方法，即減輕車身質(zhì)量和提高扭轉(zhuǎn)剛度。指出，應主要從鋼材選擇、結(jié)構(gòu)設計、新技術新材料的選用等角度實現(xiàn)車身質(zhì)量減輕；主要通過車身加強件增加或板材加厚、車身高強度板用量提高、結(jié)構(gòu)斷面優(yōu)化、車身接頭設計優(yōu)化等方法提高車身扭轉(zhuǎn)剛度。關鍵詞： 車身 輕量化 優(yōu)化設計Investigation on Body Lightweight Design MethodYang Jun, Ye Yongliang, Wang Kanlei(SAIC Motor Corporation Ltd)【Abstract】Body lightweight coefficient is introduced in this article as a key factor for body design evaluation. An optimized method of body lightweight, . weight saving amp。 stiffness improvement are presented. It is pointed out in the paper that body lightweight should be realized mainly by steel selection, structural design, selection of new techniques and new materials。 whereas body torsion stiffness can be improved by adding body reinforcements or thickening steel sheet, increasing the amount of high strength steel sheet used in body, optimizing structural section and body joint design, etc.Key words: Body。 Lightweight。 Optimal design10 / 17半掛汽車列車彎道行駛工況下軸偏角對行駛穩(wěn)定性影響的仿真分析宋年秀 1,2 蘇建 1 蘇麗俐 1 李錢 3 劉宏飛 1 梁成江 2（ ；；）【摘要】針對半掛汽車列車彎道行駛穩(wěn)定性差的問題，運用仿真分析軟件ADAMS 建立了半掛汽車列車整車模型，通過對比穩(wěn)態(tài)轉(zhuǎn)向特性試驗和制動效能試驗的仿真結(jié)果與實車試驗結(jié)果，驗證了仿真模型與實車的一致性。分析了彎道行駛工況下軸偏角對半掛汽車列車折疊角和轉(zhuǎn)向特性的影響，結(jié)果表明，半掛車軸偏角的方向與半掛汽車列車的轉(zhuǎn)向一致時，半掛汽車列車折疊角增大，有利于半掛汽車列車的行駛穩(wěn)定性。主題詞：半掛汽車列車 彎道行駛 軸偏角 穩(wěn)定性Analysis on the Influence of Axial Deviation Angle on Driving Stability When Semitrailer Train Running in a CurveSong Nianxiu1, 2, Su Jian1, Su Lili1，Li Qian 3，Liu Hongfei1，Liang Chengjiang2（1. Jilin University。 2. Qingdao Technological University。 3. Xiamen King Long United Automotive Industry Co., Ltd）【Abstract】To address the poor stability when the semitrailer train runs in a curve, a semitrailer train model was established with simulation analysis software ADAMS. By paring the simulation results from steadystate steering tests and braking efficiency tests with the real vehicle tests, the consistency of the