Nonlinear dynamic load analysis of aviation spline coupling with mass eccentricity and misalignment

• Main Authors: Xiangzhen Xue, Qixin Huo, Jian Liu, Jipeng Jia
• Format: Article
• Language: English
• Published: SAGE Publishing 2021-02-01
• Series: Advances in Mechanical Engineering
• Online Access: https://doi.org/10.1177/1687814021996511

Most of the time, mass eccentricity, and misalignment exist at the same time with aviation spline coupling working. Therefore, in this paper, the function of dynamic meshing force between multi-teeth and a non-linear dynamic model of involute spline coupling system in aero-engine with mass eccentricity and misalignment were presented. And then, the non-linear dynamic meshing force of spline coupling in aero-engine on different misalignment and mass eccentricity was investigated. The result shows that when the mass eccentricity and the misalignment are both small, the aviation involute spline coupling can run steady. And with the increase of mass eccentricity or misalignment, the dynamic load coefficient of the aviation involute spline coupling gradually increase. At the same time, as the mass eccentricity or misalignment increases, some teeth suffer more load, some teeth suffer less load, and some teeth are out of engagement so that they do not suffer any load. The running state of spline coupling becomes more and more unstable.