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• The uniformly valid solutions for free vibration of revolution shells can be worked out through these answers.

通过解答可以解决旋转薄壳自由振动一致有效求解问题

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• Technique is presented in this paper to isolate one or a few modal free vibrations from a measured free vibration by means of a DFT-bandpass-IDFT procedure.

本文介绍利用DFT-带通滤波-IDFT过程自由振动中所含一个少数几个模态分量隔离出来的算法和实用技术

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• The boundary conditions has strong influence on the coupling effect, the stronger it is, the smaller frequency of free vibration is but the larger amplitude is.

边界条件耦合效应较大影响较强边界条件使椭圆板热弹耦合自由振动频率变低，振荡幅度增大

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• This paper calculate inherent frequency of the free vibration of the cylinder shell with the theory of the separated variable method on the basis of displacement model.

位移模型基础有限元中的分离变量理论求解圆柱自由振动固有频率计算结果壳体解析解相一致。

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• In this paper, free vibration problems of shear walls with openings and step type top are solved by the finite strip method combined with small modulus and zero density regions.

本文有限条元模量密度区域处理方法结合用于自由振动分析，研究了任意开孔顶部阶梯形剪力的自频率及

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• For free vibration analysis of skeletal structures, dynamic stiffness method (DSM) is an exact method.

杆系结构自由振动分析中，动力刚度DSM一种精确算法

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• The major methods of measuring Q-value by the natural earthquakes are the ones of using the data of free vibration of earth, body wave, surface wave and coda.

利用天然地震波测量Q主要方法利用地球自由振荡资料利用利用利用尾波来研究Q值

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• This paper gives a new analytical solution of the free vibration of an arbitrary-shaped plate with complex boundary conditions.

本文给出复杂边界条件下任意形状自由振动分析的一个新的解析解法

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• From the established state equation of free vibration the normal frequencies and modes are determined.

已建立自由振动状态方程确定系统的固有频率、固有振型

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• The finite element model of the free vibration for the rigid suspension catenary and pantograph is set up.

建立刚性悬挂接触网自由振动有限元模型，计算固有频率型。

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• The damping characteristics of the bedrock in a nuclear power station are studied experimentally by free vibration system with one degree of freedom.

本文采用自由振动法”，设计了一个等效单自由度振动体系，对某核电站基岩阻尼特性进行实验研究

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• A kind of free vibration equation of the nonlinear dynamical system is solved to study chaotic movement.

为了讨论混沌运动一类非线性动力系统自由振动方程进行了求解

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• This paper makes use of free vibration method, using the same model and measuring device to identify the flutter derivatives of the girder.

本文主梁的导数识别采用主梁分析试验相同节段模型测量装置自由振动进行试验。

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• Any system capable of a free vibration without external force is a counter example, e. g. a wire in the piano.

任何一个外力自由振动系统就是一个譬如钢琴中的一条钢丝

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• The accurate double Fourier series analytical solutions are obtained for the free vibration, buckling and bending of Point Supported Anisotropic Skew Plates with four free edges.

一个精确重富立叶级数解析用于分析四边形自由横观各向异性平行四边形自由振动屈曲弯曲

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本文提出包含流动流体管道自由振动频率一个计算方法

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• In order to study chaos movement, Accurate solution of non-linear free vibration differential equation is by solving a kind of free vibration equation of non-linear dynamics system.

为了研究混沌运动一类非线性动力系统自由振动方程进行了求解，继之给出了单层扁锥面网壳非线性自由振动微分方程准确

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• Processing the response signals by using the random decrement technique, a unique corresponding to each mode is obtained, which represents a free vibration response of the structure.

应用随机减量技术响应信息进行处理相应结构每一振型得到一条独特随机衰减曲线，曲线代表结构自由振动响应

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• The symmetric and unti -symmetric free vibration problems of thick plate with the fixed and simple support edge conditions are solved.

求解了周边条件下对称反对自由振动问题

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• A comprehensive study of free vibration, buckling and bending of anisotropic simply-supported skew plates subjected to in-plane normal and shear forces is conducted.

各向异性平行四边形张力剪力作用自由振动屈曲弯曲问题作了全面研究

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• In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.

柴油机研究以往建立当量系统然后进行自由振动强制振动计算

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• The model was subjected to pulsation, vibration, free vibration and hammering tests in order to investigate its flexibility, frequency and damping characteristics.

为了获得模型柔度特性频率阻尼进行脉动试验自由振动锤击试验等。

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• Based on the basic equations of free vibration of thin plate, the Hamilton canonical equations were obtained.

根据弹性薄板自由振动问题基本方程，把问题引入哈密顿对偶体系

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• In this paper, a general analytical method----space variable transform method is presented for solving free vibration problems of thick cylindrical shell with arbitrary boundary conditions.

本文提出一种一般解析方法——空间变量变换用以求解任意边界条件下圆柱自由振动问题

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• An approach using singular functions is propsed to solve the bending deformation and the transverse free vibration problems of beams in consideration of shearing.

提出一考虑剪切变形影响时，求解弯曲变形横向自由振动奇异函数解法

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• Brief reviews about elastic stability, free vibration, transient dynamic response and harmonic dynamic response of circular cylindrical shells are given first.

本文首先圆柱稳定性自由振动稳态动力响应研究进行简要回顾评述

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• The essay analyses free vibration problem of laying bed build-up board of antisymmetry angle with spline finite element method.

本文样条有限元分析了反对称铺设层合自由振动问题

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• The analytic method for the free vibration of plane frame structure is presented.

介绍了一种平面杆系结构自由振动解析解法

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• Based on the potential flow theory of liquid and vibration equation of cantilever beam, the free vibration problem of cantilever beam liquid cantilever beam coupled system is analyzed in this paper.

应用流体理论悬臂梁振动方程本文分析悬臂流体悬臂梁耦联系统自由振动问题

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• Based on the potential flow theory of liquid and vibration equation of cantilever beam, the free vibration problem of cantilever beam liquid cantilever beam coupled system is analyzed in this paper.

应用流体理论悬臂梁振动方程本文分析悬臂流体悬臂梁耦联系统自由振动问题

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