摘要
基于集中参数振动理论,建立了采用双齿联轴器的人字齿行星传动系统动力学模型;引入斜齿轮啮合刚度公式按2个斜齿刚度并联计算人字齿时变啮合刚度;通过求解系统动力学方程,获得内外啮合刚度与内外啮合动载系数之间变化关系曲线,进而分析了人字齿啮合刚度对系统动态载荷特性的影响。研究结果表明:不考虑共振的情况下,内外啮合动载系数分别随内外啮合刚度平均分量增加而增大;内外啮合刚度交变分量对内外啮合动载系数影响很小;人字齿轮运转平稳,振动较小,进行人字齿行星传动系统动载系数计算,在精度要求不太高的情况下,以啮合刚度平均分量表示啮合刚度是可行的。
A dynamics model of herringbone planet train with double teeth coupling is established based on the vibration theory of the concentrated parameter. The mesh stiffness formula of the helical gear is introduced to calculate the time-varying mesh stiffness of the herringbone teeth in the way of stiffness parallel of two helical gears. The relationship curves between the mesh stiffness of the internal and external meshes and the dynamic load coefficients of the internal and external meshes are obtained by solving the dynamic equation, and the impact of the mesh stiffness of the internal and external meshes on the dynamics load characteristics of the train is analyzed. The research results show that the dynamic load coefficients of the internal and external meshes increase with the average components of the mesh stiffness of internal and external meshes without regard to the resonance, respectively. The impact of the alternatecomponent of the mesh stiffness of the internal and external meshes on the dynamic load coefficients is much less. Because of smooth operation and small vibration of the herringbone tooth, it is feasible that the average component of the mesh stiffness represents the mesh stiffness for the calculation of dynamic load coefficient of herringbone planetary train, when the required accuracy is not too high.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2013年第6期732-738,共7页
Acta Armamentarii
基金
国家自然科学基金项目(7150080050)
航空科技创新基金项目(08B52004)
江苏省高校优势学科建设工程项目
安徽省教育厅自然科学研究重点项目(KJ2013A093)
关键词
机械学
行星传动
啮合刚度
人字齿
动力学
载荷特性
mechanics
planet train
mesh stiffness
herringbone
dynamics
load characteristic
