固有振动

计算出珍珠泉水井-含水层系统的阻尼系数和固有振动的角频率。

On the basis of the test the damping factor and angular frequency of natural oscillation cf the well aquifer have been calculated .

基于Matlab的大型梁结构固有振动边界元法仿真

BEM Simulation of Natural Vibration of Large-type Beam Structure Based on Matlab

第2部分.给出了网架固有振动频率的拟夹层板法算法和ANSYS模态分析算法。

Part 2 . Equivalent sandwich plate and ANSYS modal analysis are used in the calculation of free vibration .

Maxwell模型粘弹性圆拱固有振动

The natural vibrations of circular arches with viscoelastic on maxwell 's model

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。

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 .

广义协调厚薄板通用单元TMT的固有振动分析

Free Vibration Analysis of Plate Using a Generalized Conforming Thick / Thin Element TMT

Mindlin板固有振动的灵敏度分析

Sensitivity Analysis of Proper Oscillation on Mindlin Board

基于结构实验模态分析及频谱分析技术，针对国产MG牌吉它进行了结构固有振动特性、弹奏声频谱特性的研究。

Based on the experimental modal analysis ( EMA ) and spectrum analysis , the dynamic characteristics and sound spectrums of the MG guitar , made in China , are studied .

运用有限元理论对三种U形架进行静态与振动模态分析，得到应力分布、固有振动特性等数据。

Based on the finite element theory of three U-shaped frame for static and modal analysis , carrying out the stress distribution , natural vibration characteristics of data .

对PC轨道梁锚固螺杆监测调整系统的滚珠丝杠和运动座在实际约束状态下进行固有振动特性分析，得出其前10阶模态的固有频率和振型。

Analysis on natural vibration characteristic of ball screws and kinetic bases in the mechanical system is carried out in condition of physical constraint , and their ten lowest natural frequencies and mode shapes are obtained .

因为SRS显微镜通过侦测原子之间化学键的固有振动来完成工作，因此无须侵入性荧光标记。

Because SRS microscopy works by detecting the intrinsic vibrations in chemical bonds between atoms , it doesn 't require intrusive fluorescent labeling .

塔桅结构的斜索面内固有振动计算的修正Irvine方程

Modified Irvine equations for in-plane natural vibrations of inclined cables in tower and guyed mast structures

应用ANSYS有限元软件对南阳石油机械厂研制的ZJ30/1700CZ型钻机井架与钻台结合体的固有振动特性进行了分析。

The finite element software ( ANSYS ) is applied to the natural vibration analysis of the derrick and drilling platform connecting unit of ZJ30 / 1700CZ rig designed by Nanyang Petroleum Machinery Manufacturing Plant .

其一是用所谓迭代Ritz矢代替子结构的固有振动模态，以节约计算机时。

First , instead of natural vibration modes of substructure , the so-talled iterated Ritz vectors are adopted to economize CPU time of computation .

本文主要内容包括：1.将焊点简化为有质量的拉伸弹簧，推导出FC芯片振动模型的固有振动方程。

The main content is as following : 1 . Tension springs with mass were used to simplify solder bumps of FC , and then natural frequency equation of vibration model of FC was derived .

通过与用Galerkin法得到的精确解进行的对比表明，利用该修正方程能较准确地计算出斜拉索的面内固有振动频率和固有振型。

Compared with the exact results obtained by a Galerkin method , it is shown that the modified Irvine equations can be used to calculate the in-plane natural frequencies and modal shapes of inclined cables .

采用空间有限元软件ANSYS对简支梁桥与连续梁桥两座实际桥梁的固有振动进行了计算分析，并现场测试了两座桥梁的自振特性。

The vibration properties of two existing bridges , a simply supported beam bridge and a continuous beam bridge , are analysised by the using of the all-purpose software ANSYS . Simultaneously , the vibration properties of the two bridges are also tested in locale .

采用亚音速偶极子格网法计算非定常气动力，用状态空间法计算翼面颤振速度，利用最佳控制理论进行最优控制设计，结构固有振动用谱变换Lanczos方法求得。

The optimal control theory is introduced to design the control law . Natural vibration modes are obtained by spectral transformation Lanczos method . The FEM is used to simulate the wing structure .

根据拉格朗日方程建立考虑复合材料叶片旋转刚体运动的振动方程，采用Galerkin法建立了广义坐标表示的弯扭耦合叶片的低阶固有振动分析模型。

The vibration equation of the composite rotating blade is formulated according to the Lagrange equation . The lower-order natural vibration analysis model is also established , which couples the bending and torsion , in the generalized coordinates is also derived by the method of Galerkin .

本文采用国际上流行的有限元分析软件HyperMesh和ANSYS对输入轴进行有限元分析，校核该零件的强度和刚度，并对输入轴进行了模态分析，以了解其固有振动特性。

In this paper , finite element analysis software ANSYS and HyperMesh which are very popular in the international are used to analyze the input shaft , and check the strength and stiffness of this part . Analyze the modal of the input shaft to understand the inherent vibration characteristics .

阶梯轴弯曲固有振动分析及应用

Analysis of natural bending vibration of step beams and its application

结构固有振动特性设计的最优动力学修改原理

The Optimal Dynamics Modification Principle for Structural Natural Vibration Characteristic Design

小口径高射火炮炮身固有振动特性的计算与分析

Computation and Analysis for Eigenvibration Characteristics of Small-Calibre Antiaircraft Gun Barrel

火炮身管固有振动特性的有限元传递矩阵法

Finite Element Transfer Matrix Method of Gun Tube Natural Vibration Characteristic

用摆研究非共振固有振动

A Study of Nonresonant Natural Vibration By Using A Pendulum Installation

结构固有振动分析的动态有限单元法

The finite dynamic element method fo free vibration analysis of structures

用综合离散法分析舰船筒形桅的固有振动

Analysis of natural vibration of cylindrical mast by synthetic discrete method

曲线梁桥的固有振动特性及地震反应分析

Natural Dynamic Characteristics and Seismic Response Analysis of Curved Girder Bridges

梁固有振动分析的自适应方法

The Self Adaptive Method for Free Vibration Analysis of a Beam

抽水蓄能电站机组钢筋混凝土支承结构固有振动分析与共振校核

The Free Vibration Characteristics of Concrete Supporting Structure of Pumped-storage Units