发动机曲柄连杆机构运动学仿真及有限元分析  

Finite Element Analysis and Kinematics Simulation of Engine Crank-connecting Rod Mechanism

作　　者：刘晓琴[1] 曹锋[1] 

机构地区：[1]兰州交通大学机电工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2014年第4期168-171,共4页Journal of Lanzhou Jiaotong University

摘　　要：在对发动机曲柄连杆机构运动学分析的基础上,利用Pro/E软件建立了发动机曲柄连杆机构的虚拟样机模型,并进行运动学仿真分析,得到活塞的速度、加速度曲线;利用有限元分析软件Algor对曲柄连杆机构关键构件——曲轴进行有限元分析,得到应力、应变和疲劳寿命云图,为发动机曲柄连杆机构的优化设计提供了参考依据.On the basis of kinematics analysis of engine crank-connecting rod mechanism,a virtual prototyping model of engine crank-connecting rod mechanism is established and the kinematics a-nalysis is discussed in detail by using 3D design software of Pro/E.By the simulation,the move-ment disciplines of piston including velocity and acceleration are obtained.The finite element anal-ysis of crankshaft is carried out by the software of Algor,and the stress,the distortion and the fa-tigue life for crankshaft are analysed.The analysis results provide the reference for the optimiza-tion design of engine crank-connecting rod mechanism.

关 键 词：曲柄连杆机构 运动学 有限元分析 疲劳寿命 

分 类 号：TH133[机械工程—机械制造及自动化]