摘要
提出了一种基于Transmission3D(T3D)的轮齿啮合刚度求解方法,该方法通过建立半有限元/半接触力学模型,保证齿轮副啮合分析的求解精度和效率。利用该方法求解了典型齿轮副的时变啮合刚度和平均啮合刚度,求解结果与ISO 6336—1996标准误差对比仅为2.6%,证明了求解方法的合理性。针对现有标准的不足,基于T3D研究了轴孔半径对啮合刚度的影响规律;结合一般有限元法进行了影响机理分析,在此基础上给出了航空齿轮系统动力学建模和模态分析时的啮合刚度处理方法。
A method is proposed to calculate the tooth meshing stiffness based on Transmission3D(T3D).FE/CM model is built to ensure the solving accuracy and efficiency.By using this method,the time-varying meshing stiffness and average value of a spur gear pair are both calculated,and the difference is 2.6%com⁃pared with the value solved by ISO 6336-1996,the rationality of the solution method is proved.Aiming at the deficiency of existing standards,the influence of shaft hole radius on the meshing stiffness is analyzed based on T3D and the mechanism is discussed combing the general FE method.On this basis,the meshing stiffness treat⁃ment method for the dynamics modeling and modal analysis of the aero-gear system is given.
作者
李伟霞
张涛
Li Weixia;Zhang Tao(Department of Mechanical System,AECC Commercial Aircraft Engine Company,Shanghai 200241,China)
出处
《机械传动》
北大核心
2021年第8期105-109,138,共6页
Journal of Mechanical Transmission
关键词
航空齿轮系统
轮齿啮合刚度
T3D
精度和效率
轴孔半径
Aircraft gear system
Tooth meshing stiffness
T3D
Accuracy and efficiency
Shaft hole radius
