Reliability simulation analysis of camshaft based on finite element method
In order to solve the problem of fatigue fracture of a camshaft during the experimental development stage of a diesel engine,the finite element method is used to perform multi-body dynamic simulation calculations on the camshaft.Dynamic load,transient dynamics,and high cycle fatigue analysis are conducted on various parts of the camshaft.The analysis results show that the strength of the camshaft meets the design requirements.The fatigue safety factor at the transition fillet of the exhaust camshaft shoulder at the front end of the camshaft(first cylinder)is 1.2,which is the smallest,although the strength of the fracture site meets the design requirements,it is approaching the critical fatigue safety factor.By increasing the transition radius of the exhaust camshaft shoulder at the front end of the camshaft from 3 mm to 5 mm,the problem of fatigue fracture of the camshaft has been solved.
NETL
NSTL
万方数据
维普
