Investigation on the Life Prediction of the Cross Shaft Coupling
In order to calibrate the fatigue life characteristic of a marine power plant,the loads of coupling components was analyzed by means of kinetic analysis to identify the weak parts and fatigue mode.The semi-empirical formula was used to predict bearing life,and the S-N method was used to predict the fatigue life of cross shaft.The results showed that,under rated condi-tions,the earliest fatigue mode of WL440.5 coupling is contact fatigue,which occurs at cross shaft bearings nearby output termi-nal;the bearing life time is around 16 700 h.The coupling does not occur stress fatigue,and its fatigue life can meet the index requirements.
NETL
NSTL
万方数据
