非道路用增压柴油机连杆组件3维有限元分析

FEM Analysis of ConnectingRod for OffRoad Turbocharged Diesel Engine

摘要:

建立了非道路用增压柴油机连杆组件3维有限元分析模型，应用有限元分析技术对非道路用增压柴油机连杆进行了3维非线性有限元分析，并用基于第四强度理论屈服条件，计算了连杆关键部位的疲劳安全系数.结果表明：计算结果与实际结果相吻合，SNH4102Z非道路用增压柴油机连杆满足强度要求;连杆小头与杆身过渡处安全系数较低，是较危险的部位.

Abstract:

The 3D Finite Element Method (FEM) model of connecting rod assembly for offroad turbocharged diesel engine was established. And, nonlinear analysis was made of connecting rod assembly for offroad turbocharged diesel engine.Moreover, the fatigue safety coefficient under the fourth strength theory was calculated. The result shows that connectingrod can satisfy the strength requirement, and the fatigue safety coefficient of the transition area between small end and connectingrod body is lower than that of other sites,and thus the transition area is more dangerous than other positions.