Aiming at the problem that rack and pinion are prone to fatigue failure under long-term alternating loads,a dynam-ic mechanical evaluation method combining transient dynamics and sensitivity is proposed.The pinion and rack transient dynamic model is established by ANSYS,and the maximum operating condition is selected for analysis.The sample data are obtained through DOE test,and the response surface model is used to fit the sample data with multiple quadratic regression to analyze the sen-sitivity of each input parameter to each performance index.The results show that the input torque has the most obvious influence on the dynamic engagement of the pinion and rack,followed by the friction coefficient and the least influence on the load,which can provide a theoretical reference for the optimization of the pinion and rack transmission.
维普
万方数据