Theory of Vibration的意思|示意

According to the basic theory of vibration, the article considers that vibration in the process of excavation can reduce the digging force and improve the energy efficiency greatly.

本文从振动的基础理论出发，认为在挖掘过程中施加切削方向的振动后，能够大大降低作业过程中的挖掘阻力，并提高能量的利用效率。

The paper starts from the theory of mechanical vibration, with tie equipment in the reliability design, and obtains a formula of design on critical speed in common use situation.

从机械振动理论出发，用可靠性设计中的联结方程，得出了其在常用工况下按传动轴的临界转速进行可靠性设计的公式。

So one-dimensional elastic wave and plate vibration response theory are mainly applied to study the structure and experiments are made to verify the validity of the theory.

所以作者主要是应用一维弹性波理论及板壳振动理论对局部噪声屏蔽进行理论研究，并用试验来验证理论分析的可靠性。

Theoretical analyses show that the one dimensional vibration model of a slender rod can be derived out from the theory.

理论分析表明，细长条的长度伸缩振动模式可由所述理论直接导出。

According to the elastic thin plate theory and vibration theory, a boundary element method (BEM) was used to analyze the frequency characteristics of a thin plate in lateral free vibration.

根据弹性薄板理论和振动理论，运用边界元法(BEM)分析了薄板弯曲自由振动的频率特性。

But much damage of underground structures under earthquake is reported. It is necessary to study the theory of vibration of absorption and resistance of underground structures under earthquake.

但在历次的大地震中，地下结构都有遭遇破坏的报导，并且震害往往不易发现且修复困难，所以其抗震和减震理论仍需进一步研究和探讨。