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。
The natural vibration of the structure is tested, and the impact of the passing vehicles is analyzed.
在动载试验中，测试桥跨结构的自振特性，并进行了行车激振试验，分析桥跨结构在行车下的冲击作用。
The dynamic analysis include natural vibration analyse, harmonic response analyse and transient response analyse.
动态特性分析包括固有振动特性分析，谐响应特性分析和瞬态响应特性分析。
Problems regarding nonlinear natural vibration of pendulum spring under foundation displacement excitation are studied.
研究基础位移作用下悬挂弹簧的非线性固有振动问题。
Natural vibration characteristic of gun tube was analyzed triumphantly. Vibration frequency and mode shape were obtained.
对某火炮身管固有振动特性进行了分析，计算得到了振动频率和振型。
This paper presents an analytic method for lateral natural vibration of step beams with lumped masses and elastic supports.
给出了带集中质量和弹性支承阶梯轴的横向固有振动分析方法。
This paper gives an accurate analytic method of lateral natural vibration of beams with lumped masses and elastic supports.
本文给出带集中质量和弹性支承梁横向固有振动的精确分析方法。
The natural vibration of the structure is tested, and the impact of the passing vehicles is analyzed under dynamical loads.
动载试验中，测试了该桥的自振特性，并进行行车激振试验，分析桥跨结构在行车时的冲击作用。
The light self weight, large flexibility, small damp and low natural vibration frequency make it very sensitive to wind load.
大跨空间结构自重轻、柔性大、阻尼小、自振频率低，对风荷载比较敏感，风荷载已经成为大跨空间结构设计的重要荷载。
It is certified that the structure and size of the anti-vibration bar and loop hoop have notable effect on the natural vibration.
计算表明：防振杆与环箍的结构和尺寸对蒸汽发生器管束的固有振动频率有显著影响。
The influence of lateral brace stiffness and arch lib section type on the natural vibration property of the bridge is also studied.
以湘潭湘江四大桥为工程背景，分析了横撑对斜拉拱桥稳定、自由振动和抗震等力学性能的影响。
Making use of modal characteristics of the natural vibration of flexible structure to design the oscillating wing aircraft is proposed.
提出一种利用柔性结构的固有振动模态特性的振翼原理。
According to the theory analysis and engineering practice, the application of natural vibration features in bridge inspection is introduced.
根据对自振特性的理论分析，结合工程检测实例分析了自振特性在桥梁检测中的应用。
In the early modal synthesis techniques, the main cause of computation error comes from the truncation of higher order natural vibration modes.
在早期的模态综合法中，引起计算误差的主要原因是由于截去了高阶模态。
Natural vibration and dynamic response on time dependent structure are analyzed, the equations of natural vibration and dynamic response are set up.
研究了时变结构的自振特性和动力反应，建立了随机时变结构的自振和动力反应方程。
This paper studied mainly on static characteristics, natural vibration characteristics and linear stability of cylindrical vierendeel latticed shell.
本文主要研究了柱面空腹网壳结构的静力特性、自振特性和线性稳定性。
This paper computes the natural vibration character? The vibration isolation effect and the shock resistance of a floating raft, using ANSYS software.
本文采用ANSYS软件对一船用辅机浮筏的固有振动特性、隔振效果和抗冲击性能进行了数值分析。
The kinetic equation of hemispherical resonator second order natural vibration type is established when the resonator is in the case of free vibration.
当谐振子处于自由振动的情况下，建立了半球谐振子二阶固有振型的动力学方程。
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 natural vibration frequency and type, the dynamic characteristics of damping is important, car, wind power calculation and analysis of the earthquake.
结构的固有振型、频率和阻尼是重要的动力特征，是车振、风振及地震分析等动力计算的基础。
In this paper, the basic relations of the natural vibration characteristics of framed structures have been studied by means of the dynamic finite element method.
本文用动力有限单元法对框架式结构自振特性基本规律进行了一定的研究。
Air spring is characteristic of variable stiffness, its natural vibration frequency is much lower than that of leaf spring and will not change with load of vehicle.
空气弹簧具有变刚度特性，其固有振动频率要比钢板弹簧低得多，且不随汽车承载质量的变化而改变。
According to the measurement and analysis of natural vibration characteristics of tube heater, a simplified calculating method and empirical formulae were suggested.
根据管式加热炉结构和动力特征的实测结果，提出了简便的计算方法和经验公式。
Considering the effect of the vehicle natural vibration frequency and velocity, the simulation and analysis are done on a, E-the two grades of road using this method.
在考虑了汽车固有振动频率及行驶速度后，利用该方法对A、E两个等级的公路路面进行数值仿真。
The analysis of the (improved) structure shows that the increase of natural vibration frequency is visible, the vibration noise of the shield is suppressed distinctly.
改进后的分析结果表明排气二分管罩的自振频率明显提高，振动噪声得到有效抑制。
The natural vibration frequency and type, the dynamic characteristics of damping are important, Car, wind power calculation and analysis of the earthquake are presented.
结构的固有振型、频率和阻尼是重要的动力特征，是车振、风振及地震分析等动力计算的基础。
The finite model of the derrick and drilling platform connecting unit is built and the natural vibration frequency and the corresponding vibration mode of it are given here.
建立了该钻机井架与钻台结合体固有振动特性理论分析的有限元模型并给出了其固有振动频率结果和相应的主振型。
Have studied the natural vibration characteristic of the piston - connecting rod - crankshaft while keeping in touch with the condition each other adopting systematic methods.
采用系统的方法研究了活塞-连杆-曲轴三者在相互接触条件时，在不同转角下的固有振动特性。
The natural vibration of linear systems with any viscous damping was discussed in this paper, its applications to the response and identification of the systems were explicated.
本文讨论任意粘性阻尼线性系统的固有振动，说明它在求系统响应和识别中的作用。
The natural vibration of linear systems with any viscous damping was discussed in this paper, its applications to the response and identification of the systems were explicated.
本文讨论任意粘性阻尼线性系统的固有振动，说明它在求系统响应和识别中的作用。
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