This paper presents a new method for calculating the natural vibration period of towers.
本文介绍了一种计算塔设备自振周期的新方法。
By solving equation group, the basic nature vibration period and vibration modes of this type equipment are obtained.
通过对方程组的求解，得到这种类型设备的自振周期及振型。
Relationship between vibration period of the system and control variables is discussed when chaos is controlled into single periodic state.
讨论了混沌被控制到单周期态时系统输出的振荡周期的变化规律与控制量的关系。
This paper discusses the method of determining the rotational speed of a full-closed compressor by means of measuring its machinery vibration period.
本文介绍通过检测机器的振动周期来间接测定封闭式压缩机转速的方法。
The paper studied the characteristic of structure of ancient brick and rock pagoda, proposed the formula of self vibration period for ancient pagoda.
研究了砖石古塔的结构特性，提出了对古塔自振周期的计算公式。
When the inertial balance is put into horizon, verticality and incline, the influences of gravity on vibration period of inertial balance are discussed.
分析了惯性秤水平、垂直和倾斜放置时，重力对惯性秤振动周期的影响。
When the extrusion temperature was increased, the pressure vibration frequency and critical slid length decreased, while the vibration period increased.
挤出温度升高，压力振荡频率减小，周期变大，外推滑移长度有变小趋势。
Dynamic characteristics tests show that the natural vibration period of steel frame can be prolonged with the reducing of connection rotation stiffness.
动力特性测试结果表明：随着节点转动刚度的减小，框架自振周期延长。
The theoretical values and the measured data on the installed unit show that this method can be applied to determination of the natural vibration period for a large-scale framed tower.
理论计算与实测数据表明，所述方法可以用来确定大型框架塔的自振周期。
If the equipment vibration period is hard to get, we could use the static force seismic coefficient theory to define the seismic effect to ensure the equal safety of the equipment and building.
对周期确定较难的设备，通过静力地震系数法，确定地震作用，以求设备与建(构)筑物处于同等安全度。
A method for calculating natural vibration period of framed tower and a calculative example are described in this paper. The period of an industrial framed tower had been measured in the factory.
文中提出了框架塔自振周期的计算方法与计算示例，并对工业用的框架塔的自振周期进行了实测。
By analysed on vibration theory we knew that the load js a static load in mechanics of materials, when the loaded time is 6-8 times as much than the natural vibration period of the unit of structure.
通过振动理论的分析得知，材料力学中静载荷的定量标准是：当加载时间为构件系统的固有振动周期的8倍以上时，这种载荷即可认为是静载荷。
"The idea is that the time that the pulse is on is about a quarter of a period of a vibration, " Sankey said.
桑基解释：“办法就是在四分之一的震动周期中施加脉冲，就像推小孩儿荡秋千一样，一个脉冲推动一次”。
The method to measure body's inertial mass is proposed by measuring period of vibration with the integrated hall switch sensor, when spring oscillator is in situation of simple harmonic vibration.
提出了在弹簧振子作简谐振动时，利用集成开关型霍尔传感器测量振动周期，以进一步测量物体惯性质量的方法。
So I see it as my mission to raise as many people's vibration rates as possible, in the shortest period of time.
所以我把这份工作，即在最短的时间里帮助更多的人提高自身振频，看成自己的使命。
The vibration of the nonlinear pendulum is studied by means of linearization and correction method, the curves of the period ratio and the relative error is plotted.
应用线化和校正方法，研究了单摆的非线性振动，作出了周期比和相对误差随摆角的变化曲线。
And the main factors influencing the amplitude and period of the stick-slip vibration are discussed.
并对影响粘滑振动幅值和周期的主要因素进行了讨论。
A calculation for period of a single freedom nonlinear conservative system vibrating in a large amplitude is performed, and the period formulae of some typical vibration problems are presented.
简要介绍了单自由度非线性保守系统作大振幅振动时周期的计算方法，并给出了几个常见典型振动问题的周期公式。
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。
According to the analysis, the measures of reducing vibration were put forward, so that the compressor may run stably, and the running period of the compressor may be extended.
并据此提出了减小振动的措施，从而使压缩机得以稳定运行，且延长了运行周期。
Methods According to vibration theory the relationship between the period of a torsional pendulum and the moment of inertia of a part is established and the test method is given.
根据振动理论建立了零部件单摆振动周期和转动惯量的关系，给出了实际测量方法。
While balancing a rotor system, the key is to sample the vibration signals in integral period way.
对转子系统进行动平衡的关键在于对振动信号的整周期采样。
Methods The concentration of plasma NO was measured and analyzed in rabbits with different vibration strength and different exposure period.
方法对不同接振时间、不同接振强度的家兔进行了血浆一氧化氮的测定与分析。
The VFD model can be used not only in short time vibration analysis but also in long period storage relaxation calculation so long as different parameters are adopted.
因此采用不同的参数，VFD模型既可以用于短时间内的振动响应分析，也可以用于长时间的储存应力分析。
New variable is introduced based on energetic equation, the period of vibration of three wire pendulum is studied using the method of rotating vector.
由能量方程出发，引入新变量，用旋转矢量法讨论了三线摆大角度摆动时的周期。
The compute considering work progress, the compute of vibration mode and period, and the elastoplastic time history analysis were concluded in the analysis process.
此分析过程分为施工过程计算、振型及周期计算、弹塑性时程分析。
Vibration amplitude value is not increasing for a long period running, problems are solved thoroughly for severe vibration, frequent accident and unsteady run of the compressors pipe network.
经长期运行后，振动点幅值无增大现象，根本解决了该机组管网振动严重、故障频繁、不能平稳运行等问题。
The equation of motion for a spherical surface vibration is studied, and the period is analysed.
讨论了球面摆的运动方程，分析了摆球运动的周期性。
A propeller shaft that has been in use for a long period of time cannot be adjusteIf the length of the propeller is incorrect and causing vibration, replace the propeller shaft.
已经使用很长时间的传动轴不能调整。如果传动轴的长度不正确并引起振动，更换传动轴。
Disclosed is a method for preparing a casting material resistant to fire with high heat strength, outstanding resistance to heat vibration and long service period.
本发明公开了提供一种热态强度高、抗热震稳定性好、使用周期长的一种耐火浇注料的制备方法。
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