摘要
以推力轴承为研究对象 ,在建立了瞬态 Reynolds方程的基础上 ,采用油膜压力的 Taylor级数展开式 ,推导出了非线性油膜力的 Taylor级数展开式 ,对基本方程进行了无量纲化 ,并采用超松弛差分法求出了油膜力中的二阶刚度和阻尼系数 ;建立了镜板的非线性微分运动方程 ,以特征值分析了线性与非线性系统的平衡点的性质和稳定性。
A transient Reynolds equation is built up with the object of thrust bearings, a Taylor series expansion of the nonlinearized oil film force is derived, and basic equations are normalized. Two order coefficients are calculated by employing a finite difference scheme with successive over relation (SOR) for the differential form of the Reynolds' equation. The nonlinearized differential motion equation is built up. The quality of the equilibrium point and the stability of linearized and nonlinearized systems are analyzed.
出处
《机械科学与技术》
CSCD
北大核心
2002年第3期366-367,372,共3页
Mechanical Science and Technology for Aerospace Engineering
基金
湛江师范学院博士专项基金 (0 10 5 )资助
关键词
推力轴承
非线性油膜力
平衡点
稳定性
Thrust bearing
Nonlinearized oil film force
Equilibrium point
Stability
