1·Two degrees of freedom systems: free vibration and forced vibration;
两自在度系统：自在振动和受迫振动；
2·The sources of forced vibration in the machine tool are found by means of the free running experiment.
通过空运转试验查明了机床受迫振动的振源。
3·Then, the free vibration and the forced vibration of the rotor are obtained by means of Runge-Kutta method.
然后，采用Runge - Kutta方法求解了多种参数下的自由振动和强迫振动。
4·It is considered that the vibration of the bottom bearing damper belongs to forced vibration of nonlinear system.
认为下阻尼器在离心机运行时的振动是非线性系统的受迫振动。
5·Magnetoelastic forced vibration of a thin round plate subjected to mechanical loading in magnetic field is studied.
研究了电磁场环境下机械载荷作用圆形导电薄板的磁弹性强迫振动问题。
6·An iterative computation method for nonlinear forced vibration equation on helicopter blade aerodynamic load is given.
介绍用迭代方法求解直升机桨叶气动载荷中的非线性强迫振动方程。
7·In this paper, the vertical forced vibration of dynamic foundation on viscoelastic layered half space was studied in detail.
本文较深入地研究了层状粘弹性半空间上刚性圆形基础的垂直振动问题。
8·In this paper, the nonlinear forced vibration of circular plates with thicknesses varying according to power indexes are studied.
本文研究了厚度呈幂指数规律变化的变厚度圆饭的非线性强迫振动问题。
9·In this paper, suppression of chaos in a forced vibration system with a square term by resonant periodic perturbations is studied.
本文研究了用与受迫力谐波共振的周期摄动抑制含二次非线性项受迫振动系统中的混沌。
10·The harmonic responses and forced vibration are analyzed and the results are verified by the system's torsional vibration testing.
系统谐响应分析和强迫振动分析结果通过传动系统扭振实验得到了验证。