通过阻尼层与壳体作用的边界条件求解流固耦合振动方程，解得辐射声场的表达式。
Through the border conditions of damping layer combined with the shell the coupled oscillation equation was solve, and radiation sound field expression was shown using the shell displacements.
基于转子动力学和齿轮啮合基本原理，建立了一般齿轮耦合轴系弯扭耦合振动方程。
Based on rotor dynamics and the basic principle of gear mesh, this paper sets up the lateral-torsional coupling vibration theory of a general geared rotor-bearing system.
利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
By simulating the track irregularities with trigonometric series method, the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge.
利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
By examining the test results of vibration for a few Bridges, it is found that train formation has a strong effect on bridge vibration responses.
运用车桥耦合振动理论，建立铁路车辆曲线通过模型动力方程、曲线梁桥模型及其动力方程。
By applying vehicle-bridge vibration theory, dynamical model and equation of railway curve negotiating vehicle as well as the model and equation of curve beam bridge are established.
对刚柔耦合回转角和刚柔耦合振动的微分方程，则通过摄动法求解。
The rotating Angle and vibration of rigid-flexible coupling are solved by the perturbation method.
液体压强矩阵方程和压电硅片振动有限元方程耦合，得到一个包含微泵进出口扩散管的液-固耦合系统振动方程。
The fluid pressure equation is combined with vibration equation of silicon diaphragm to construct liquid-solid coupling system equations for a micropump.
基于流体的波动方程和结构的动力方程，利用有限元方法研究了考虑流固耦合时的双层加肋圆柱壳体的振动特性。
Based on the acoustic wave equation and structural motion equation, the vibration characteristics from the fluid loaded stiffened cylindrical double shell are studied by using finite element method.
利用拉格朗日方程建立了耦合摆的矩阵方程，对失调耦合摆振动进行了分析；
Through the Lagrange's equation, the matrix equation of coupled pendulums is established, the vibration of disorderly coupled pendulums is analyzed;
利用拉格朗日方程建立了耦合摆的矩阵方程，对失调耦合摆振动进行了分析；
Through the Lagrange's equation, the matrix equation of coupled pendulums is established, the vibration of disorderly coupled pendulums is analyzed;
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