受迫振动

If force was a sine or cosine law changes, was stable after the forced vibration also a sine or cosine law changes.

如果强迫力按正弦或余弦规律变化，则稳定后的受迫振动也按正弦或余弦规律变化。

In chapter 4, researches are on the theory of the active control laws of the forced vibration of structures.

应用这一定理，在本论文关于结构系统受迫振动最优主动控制的研究中，证明了最优主动控制响应的一些重要特性。

Moreover, the thermoelasticity coupling of the elastic film in forced vibration is considered.

而且，在弹性薄膜的受迫振动问题中进一步考虑了应变致热的热弹性耦合。

Then the paper analyzes the responses of the forced vibration under the considerations of the nature growth and the load of wind.

然后本文在考虑云杉的自然生长情况和风载作用的前提下，分析云杉的受迫振动响应。

Therefore, the study for material damping of RC and CFST under forced vibration is urgent in theory and practice of seismic design and dynamic analysis of structures.

因此，钢筋混凝土和钢管混凝土受迫振动条件下的材料阻尼研究对工程结构抗震设计与动力分析具有重要的理论与实际意义。

In mechanical vibration, when the natural frequency of plan dynamic frequency and system is consistent, the amplitude of forced vibration reachs great value.

在机械振动中，当策动力的频率和系统的固有频率一致时，受迫振动的振幅达到极大值。

The system is used to analysis the forced vibration, self-excited vibration and the propagation of disturbance in turbomachinery. Some conclusions are gained.

应用该套分析系统来分析叶片流体激振的受迫振动，自激振动和振荡流在多级叶排中传播的安全性问题，在具体应用中得到以下结论： 1。

The safety of a main well headframe would be reduced significantly,due to increased loading capacity and higher vibration frequency in a coalmine.

由于煤矿主井井架提升能力的增加，引起井架杆件受力增大，受迫振动频率增大，导致安全性能降低。

These errors together with the self-induced vibrations and forced vibrations affect the measuring results, and cause dynamic errors.

指出这些误差和测量机组成部件的自激振动、受迫振动等将对测量结果产生影响，引起动态误差。

The resonant features of both tuned and mistuned systems are investigated by using this method under various system coupling strengths, viscous dampings, and dry friction dampings, etc.

利用该方法对带有叶间干摩擦阻尼的叶盘受迫振动响应进行了仿真计算，分析了叶盘系统在谐调和失谐两种情况下受耦合强度、黏性阻尼和干摩擦阻尼等系统参数影响下的共振特性。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。