A modified model for time-varying meshing stiffness based on location of tooth root fillet’s center
ZHANG Keming1, SHAO Yimin1, XU Jin2, HE Rong2, LI Liang2
1.State Key Lab of Mechanical Transmission, Chongqing University, Chongqing 400044, China;
2.Northern Vehicle Research Institute, Beijing 100072, China
Abstract：Variation of contact teeth pairs’ number and contact positions causes the time varying meshing stiffness, as the most important internal excitation of gear dynamic systems, to change.However, most of the current studies can’t adopt a precise analytical model to calculate potential energy between a tooth root circle and a gear base circle, and lead to calculation errors of the time-varying meshing stiffness.Here, aiming at this problem, based on the potential energy method, an analytical model to calculate the time-varying mesh stiffness and accurately consider potential energy between a gear base circle and a tooth root circle was proposed.According to the location of tooth root fillet’s center, the algorithm to calculate the time-varying meshing stiffness under conditions of different parameters was studied.Comparing the calculation results with those of finite element simulation, it was shown that the modified algorithm proposed here can more precisely calculate the time-varying meshing stiffness of gear teeth; this method provides a new way for gear system vibration analysis.
张珂铭1,邵毅敏1,许晋2,何融2,李亮2. 基于齿根圆角圆心所在位置的时变啮合刚度修正模型[J]. 振动与冲击, 2019, 38(1): 229-237.
ZHANG Keming1, SHAO Yimin1, XU Jin2, HE Rong2, LI Liang2. A modified model for time-varying meshing stiffness based on location of tooth root fillet’s center. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(1): 229-237.
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