摘要
考虑动压润滑油膜温粘效应,首先建立轴颈-瓦块相对几何关系,导出支点反作用力与力矩的0阶与1阶泰勒展开方程,推导瓦块油膜力、力矩的平衡方程及其刚度阻尼系数,联合轴颈-瓦块运动的微分方程,建立挠性支承可倾瓦轴承完整动力学模型;通过与相关文献的试验数据进行对比分析,验证所提出的挠性支承可倾瓦轴承完整动力学模型的准确性。
Considering the thermal and viscous effect of lubricating oil film in dynamic compression condition, the geometrical relation between the journal and the tiles is established. The Taylor expansion equations of the zeroth order and the first order for reaction force and moment of the fulcrum are established. The equilibrium equation of the oil film force and moment in the statically equilibrium position is deduced. The kinematic differential equation of the tiles and the journal is proposed. Finally, a full dynamic model of the flexible bearing inclinable pad bearing is established. Solutions of these equations are analyzed and compared with the experimental data in the relevant literatures. And the accuracy of the dynamic model is verified.
出处
《噪声与振动控制》
CSCD
2017年第6期7-11,共5页
Noise and Vibration Control
基金
国家高技术研究发展计划863计划资助项目(2015AA043005)
国家自然科学基金资助项目(51375178)
关键词
振动与波
挠性支承
可倾瓦轴承
完整动力学模型
vibration and wave
flexure pivot
tilting pad bearings
full dynamic model
