摘要
研究正交面齿轮在加载条件下面齿轮啮合的传动性能参数、齿面接触应力和轮齿弯曲应力变化规律的有限元分析计算关键技术,以赫兹接触应力解析公式计算结果为对比,提出接触应力和弯曲应力计算的有限元网格密度确定方法。根据面齿轮重合度,分析面齿轮加载啮合仿真的五齿模型和七齿模型适用场合,给出面齿轮在啮合过程中的齿面接触应力和齿根弯曲应力最大值位置,计算面齿轮多齿模型接触应力及弯曲应力极值,准确得到面齿轮传动的重合度、传动误差、载荷分布系数等传动性能参数,以及载荷对这些传动性能参数的影响规律。研究结果表明,赫兹接触应力解析公式计算的结果合理地确定了有限元模型的网格密度,有限元仿真得到的应力值可靠,传动性能参数的分析结论正确。
The transmission performance,contact stress and bending stress of face-gear drive under torque are studied.Based on the calculated results of Hertz contact theory,a method to get reasonable amounts of grid for finite element method（FEM）,is introduced.According to the contact ratio,it investigates the applications of FEM with five teeth,and one with seven teeth,which are used to research on the loaded meshing simulation of face-gear drive.The dangerous positions for contact stress and bending stress of face-gear are found,and their values are given out.The transmission performance of face-gear drive,such as contact ratio,transmission error and the loading distribution coefficient,can be computed by this method.When the face gear is under different torques,their relationship to loadings can be got.The results of research turn out that,the grid size of finite element model,which is decided by Hertz contact theory,is reasonable.The values of stresses in the meshing simulation are reliable,and the conclusions about the transmission performance of face-gear drive are correct.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2012年第5期124-131,共8页
Journal of Mechanical Engineering
基金
国家重点基础研究发展计划(973计划
2011CB706800)
中南大学研究生教育创新工程资助项目
关键词
面齿轮
接触应力
弯曲应力
传动性能
有限元法
Face gear Contact stress Bending stress Transmission performance Finite element method
