vibration period

The SAE of TMD is best only when the vibration period of TMD is equation to the basic periods of ( soils and) structure system being control, if not, the SAE of TMD will be reduced in range of 5% to 10%.

当TMD的振动周期与被控制（土体与）结构体系的基本周期一致时，TMD才能发挥最佳的减震效果；否则，TMD的减震效果将有不同程度的降低，幅度可达5%～10%。

According to the experimental results, the irregular change of time histories of particle vibration is discussed in the period of strong motion, and it is found that the Fourier spectrum can not describe the shock property of strong motion.

根据实验结果，对质点振动时间历史在强震阶段的不规则变化进行了讨论，发现Fourier谱不能描述强震脉冲作用的特征。

The tach signal is sampled synchronously with the vibration signals. The integral period sampling is implemented by software in the forthcoming process.

对鉴相信号与振动信号进行同步采样，而对振动信号的整周期截取则利用软件实现。

This paper using the blasting vibrant velocity response spectrum of the similar blasting project and the ANSYS program carried through the dynamical response calculation of power houses dam under the vibration by blasting demolishing the third period RCC cofferdam of Three Gorges Project.

利用类似工程爆破建立的爆破地震速度反应谱，采用ANSYS通用程序对三峡工程三期碾压混凝土围堰拆除爆破地震作用厂房坝段动力响应进行了计算。

The anti-seismic analysis is carried out for dry-type air-core reactor. The calculation basis and mathematic model are given. The basic natural vibration period, seismic stress and the calculating formula for safety-check are all presented here.

对干式空心电抗器总称结构进行了地震分析，提出了计算依据与数学模型，给出了基本自振周期、地震力以及安全校核的实用计算公式。

The relations between vibration period and angular amplitude of three-line pendulum

三线摆振动周期与角振幅的关系

The relations between heat period and resultant vibration period, and between their figures are discussed.

讨论拍的周期 、 合振动的周期及其图形间的关系,并得出分振动的频率比决定拍的图形形状.

Empirical Formulas of Natural Period of Vibration for Highrise Steel Structures

高层钢结构基本周期的经验公式

Calculation of Vibration Period of Columns with Same thickness and One Hoop

一个塔箍的等壁厚塔器自振周期的计算

Natural period of vibration and parameters analysis for an opera house studio

某歌剧院演播厅自振特性及参数分析

The influence of magnetic intensity on the period and the amplitude of vibration is discussed.

通过算例，分析了磁场环境对振动周期和幅值的影响。