The nonlinear oil film forces based on both steady and unsteady oil film model are coupled to the system with help of local function.
非线性油膜力则通过相应的位置矩阵耦合到系统的运动方程中去。
The oil film forces under free boundary conditions are solved by finite element discrete variational inequalities and iterative method based on complementary principle in linear programming.
利用有限元离散变分不等原理和基于线性规划余原理的迭代方法，求解自由边值条件下的油膜力。
The results show that when only the oil film forces are applied to the rotor, there only exists the period-doubling bifurcation arising from the instability of the lubricant in the bearings.
结果表明，当只有非线性油膜力作用时，转子只存在由于油膜失稳而导致的倍周期分岔。
The coupling oil film forces and moments of thrust bearing due to the lateral vibration of rotor can be described with a group of linear stiffness and damping coefficients.
系统地研究了推力轴承各耦合动特性系数对转子横向振动状态的贡献。
The coupling oil film forces and moments of thrust bearing due to the lateral vibration of rotor can be described with a group of linear stiffness and damping coefficients.
系统地研究了推力轴承各耦合动特性系数对转子横向振动状态的贡献。
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