Based on theory of vibration mechanics, this paper analyzes the vibration mechanics model of rod string systematically.
从振动力学的理论出发,对现行抽油桿柱的振动力学模型进行了系统分析。
This paper consists of three parts. The first part is about the theory of vibration and analysis methods.
本文主要由三个部分组成,第一部分是关于振动问题的理论基础。
Using theory of vibration wave propagation, the concept of the attenuation coefficient of vibrating acceleration is drawn, and the test results of attenuation coefficient are analyzed.
应用振动波传播理论引出加速度衰减系数的概念,并对加速度衰减系数的试验结果进行了分析。
The theory of vibration measurement by interference with a multimode single optic fiber probe and an experimental arrangement, as well as the experimental results are presented.
本文介绍了单根多模先纤探头的干涉测振实验装置,测量原理以及实探结果。
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。