考虑实测基节误差的修形齿轮啮入冲击计算

An algorithm for studying the gear meshing-in impact considering the measured pitch error was proposed to analyse the effect of manufacturing errors on the meshing-in impact. Based on the tooth contact analysis (TCA) and loaded tooth contact analysis (LTCA) considering the measured pitch error, by the algorithm the actual position of the meshing-in contactin gear meshing was calculated precisely. Next, according to the LTCA-calculated tooth deformation and load sharing factor between teeth, the teeth stiffness at the meshing-in point of the current mating teeth was obtained. Then, the meshing-in impact in a big cycle of n meshing periods (n is the least common multiple of the teeth number of pinion and gear) was analyzed. The study shows that, in the situation of random relative pitch error, by the algorithm the position of the corner contact in gear meshing-in and the corresponding stiffness can be acquired exactly. The algorithm is suitable for the modified tooth surfaces or error surfaces of gear systems. The result really reflect the effect of measured pitch error on the meshing-in impact.