分析了环肋变厚度圆柱壳的自振特性。
The analysis for free vibration of ring-stiffened circular cylindrical shell with variable thickness was presented.
本文介绍了一种计算塔设备自振周期的新方法。
This paper presents a new method for calculating the natural vibration period of towers.
本文的着重于地脉动测试自由场地自振频率的机理研究。
This paper emphasize in study of mechanism of vibration frequency for free site in microseism testing.
作为算例计算了四边简支菱形板的自振频率和临界载荷。
The critical load and natural frequency of rhombus plates with simply supported at all edges are calculated.
本文研究大长径比自旋弹箭在飞行时横向振动的自振特性。
The transverse self oscillation characteristics of a spinning rocket in flight was studied.
阐明了土的侧向基床系数与桩的弯曲自振频率之间的关系。
The relationship between the modulus of subgrade and frequency spetra is explained.
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。
By solving equation group, the basic nature vibration period and vibration modes of this type equipment are obtained.
桥梁结构的自振特性是结构动力分析和抗震分析的重要参数。
The free vibration characteristic of bridge structure is the important parameter for the dynamic and seismic analysis of structure.
还分析了不同开度情况下非线性约束对自振周期和振幅的影响。
The effect of nonlinear binding force on period and amplitude are also analyzed.
采用梁、板线性有限元数学模型计算了结构自振特性和地震响应。
Structural free vibration characterization and seismic response were calculated by means of beam-plate linear mathematical model of finite element method.
设计地震区的高层建筑时，选择结构的适宜自振周期是十分重要的。
It is important to select reasonable natural period of high-rise building in seismic design.
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。
Dynamic characteristics tests show that the natural vibration period of steel frame can be prolonged with the reducing of connection rotation stiffness.
系统分析了索膜结构自振特性与预应力、矢跨比、索初始应力等的关系。
The relationship between frequency and prestress, ratio of rise to span of tensioned cable and membrane structure are also studied.
在预测管壳式换热器的振动时，准确地计算换热管的自振频率是非常重要的。
Calculating natural frequencies of the heat exchanger tube is an essential step in predicting its potential for flow induced vibration failure.
结果表明，考虑初始几何缺陷会使得拱桥的主要自振频率降低，振型发生改变。
Results showed that the defects in the arch decreased the frequency of free vibration and changed the modes.
提出了一种测量既有桥墩自振频率的新方法，即冲击振动试验法(IVTM)。
An impact vibration test method (IVTM) for measuring natural frequencies of existing piers is proposed in this paper.
本文运用三维有限元方法离散水体，研究了箱形术体的自振频率及动水压力振型。
In this paper, the natural frequencies and modes of box water body researched by using three-dimensional finite element method.
本文首先叙述用两种方法(倾角变位法和角变位移法)分析水电站厂房的自振特性。
The analysis of free vibration of hydropower house by means of two methods are deformation of inclination Angle and slope deflection.
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。
According to the theory analysis and engineering practice, the application of natural vibration features in bridge inspection is introduced.
研究了附加质量的计算方法，分析了附加质量对水电站厂房支承结构自振特性的影响。
The calculation method of additional mass is investigated. The influence of additional mass on the dynamic characteristics of supporting structure is also obtained.
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。
Natural vibration and dynamic response on time dependent structure are analyzed, the equations of natural vibration and dynamic response are set up.
最后自动组成空间刚体自由振动微分方程的系数阵，并计算出刚体的自振频率和振型。
Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.
对结构动力特性的分析表明其振动以竖向振型为主，几何刚度对结构自振特性影响很小。
The analysis on dynamic property of BSS show that the vertical vibration modes is primary, and the geometrical stiffness has little influence on the natural vibration characteristics.
文中不仅介绍了重力拱坝自振频率与振型分布的研究结果，而且进行了振动应力的计算。
The authors not only presented the results of the investigation about the frequency of vibration and its amplitude of massive arch dam, but also computed its vibration stress.
它不仅与冲击波的作用情况有关，而且与通风构筑物的形状、大小、自振周期等因素有关。
It is a very complicated problem that is not only related to the shock wave interaction, but also to the shape, size and natural frequency of the ventilation structure.
根据动力学计算理论，提出一种新的方法来修正跳车法实测频率，以获取较准确的自振频率。
According to dynamics computation theory, this article proposed one new method revises jumps off the law actual frequency, gains the accurate base frequency.
本文通过动力有限单元法对管周围土压力的动力作用分布和管子的自振特性进行了某些探讨。
Using the dynamic Finite Element Method, the dynamic soil pressure distribution along the pipe periphery and the free vibration characteristics of the pipe are studied in this paper.
本文通过动力有限单元法对管周围土压力的动力作用分布和管子的自振特性进行了某些探讨。
Using the dynamic Finite Element Method, the dynamic soil pressure distribution along the pipe periphery and the free vibration characteristics of the pipe are studied in this paper.
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