振动模态

利用ANSYS有限元软件分析了电机的弯曲振动模态；

The motor 's bending vibration mode is analyzed by ANSYS .

基于ANSYS的煤田地质勘探钻杆振动模态分析

Analysis on Drilling Rod Vibration Mode of Coalfield Geological Exploration Based on ANSYS

基于ANSYS的凸轮机构振动模态分析

Anlysis of Sympathetic Vibration and Model State for Cam set Based on ANSYS

应用广义Kalman方法观测振动模态恒星黑子的观测

Mode Observation of Vibratory Signal via Generalized Kalman Filter Observational Approaches to Starspots

用ANSYS软件对桨叶模型进行了振动模态及应力分析，以确定传感器的布置位置。

The vibration modes are analyzed by ANSYS .

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 .

用脉冲锤击法进行了弹性地基上自由板的自由振动模态试验，并用Mescope软件分析传递函数，得到了7阶位移模态和应变模态。

The free vibration modal experiments of elastic foundation free slab were conducted by hammer-hitting excitation method , and 7 order displacement modes and strain modes were obtained by analyzing transfer functions used Me'scope software .

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 .

基于Mindlin弹性厚板理论，采用Hamilton状态空间求解方法，研究了板条横向两侧为自由边界条件下的弹性波传播问题，给出了问题的分析解，以及各种振动模态和波传播模的存在性。

Appling Mindlin 's theory of thick plates and Hamilton formulism to propagation of elastic waves under free boundary condition , a solution of the problem was given .

文中利用3D有限元软件研究了定子模态和固有频率，分析了定子叠片结构、绕组对大型异步电机定子固有频率和振动模态的影响；

In this paper , the 3D finite element analysis is used to study on the stator modal shapes and natural frequencies of large induction motor . The influence of laminated core and winding on the natural frequencies and modal shapes of the stator are investigated .

在简谐波形输入下，HHT以体系动力响应的不同振动模态之间的波间组合机制来描述体系线性的力学行为，利用HHT分解出来的表征稳态反应的IMF分量可以获得有关输入的信息；

When the linear 2-DOF system was excited by regular inputs , HHT described the linear mechanical behavior of system by the inter-wave combination mechanism among different intrinsic oscillatory modes of dynamic response of system .

在本文中，首先用MSC/PATRAN建立了折叠翼的有限元模型，然后用NASTRAN求解出折叠翼在各折叠角下的主要振动模态。

In this paper , firstly we built a finite element model of the folding wing by MSC / PATRAN and solved the main vibration modes in case of varied folding angles by NASTRAN .

利用ANSYS软件对斜拉桥索、梁和塔进行模态分析，确定了斜拉桥前20阶频率，得到振动模态图，求得了整个系统的动力响应，以此来评价整个系统的振动特性。

The former 20 order frequencies of cable-stayed bridge are determined by analyzing the stay-cables , beams and tower via ANSYS software . The vibration modal figure and the dynamic response of the whole system have been obtained , so the whole system vibration characteristics can be evaluated .

从振动模态分析理论入手，采用ANSYS有限元分析软件计算了微波幅度均衡器的前8阶振动频率和振型，分析了均衡器产生机械失效损伤的应力分布。

Based on the theory of vibration modal analysis , up to 8 natural vibration frequencies and their mode shapes were calculated with ANSYS finite element analysis software . Their stress distributions of some modes , where micro-crack are formed easily to make microwave equalizer invalidation , were analyzed also .

振动模态参数识别的Ibrahim法是近年来振动参数时域分析法的一种新发展。

In this paper , the principle of the Ibrahim Time Domain Algorithm ( ITDA ), developed in recent years and used for identification of vibration modal parameters and its implement are discussed .

用ADAMS和NASTRAN软件分析计算了飞轮壳、离合器壳、变速器壳之间连接螺栓的受力、动力和传动系总成振动模态以及3壳体的强度。

Stresses of connecting bolts between the flywheel house and the clutch house and between the clutch house and the transmission case , vibration modes of the powertrain , strength of the three cases are calculated with ADAMS and NASTRAN software respectively .

3种模型在计算极端局域振动模态（n000）的科里奥利系数有效值时，给出定性一致的结果。

They agree with each other qualitatively on the calculation of coriolis interaction parameters of ( n000 ) local mode states .

分析了流固耦合问题的一般求解方法，使用通用有限元程序NASTRAN计算了考虑自由液面晃动圆柱壳的振动模态，并且和不考虑自由液面影响计算出来的模态频率进行比较。

The paper gives an analysis for the problem of fluid-structure . The vibration modes of vertical cylindrical shell with free surface of fluid are calculated with finite element software NASTRAN , and also compared with the modes without free surface of fluid .

并以直径为30mm的行波型超声马达为例，给出了振动模态有限元分析步骤和模态分析及谐响应分析结果；

Taking traveling wave type ultrasonic motor with 30 mm in diameter as an example , the motor ′ s vibration mode analysis process by using ANSYS is given . Also the results of vibration mode analysis and harmonic response analysis are presented .

空间抛物面状通讯天线振动模态浓缩现象分析

Analysis of vibratory mode confinement of space paraboloid communication antenna structure

高速旋转的盘片振动模态的仿真

Simulation of Vibration Mode Shapes of Disks Spinning at High Speed

自由&自由结构振动模态的一阶导数

Calculating of first-order derivatives of vibration mode shapes for free-free structures

多层压电陶瓷变压器振动模态分析与测量

Analysis and Measurement of the Vibration Modes of Multilayer Piezoelectric Transformer

柴油发电机组U型基座振动模态分析

Vibration Mode Simulation of U - shaped Base of Diesel-generator Set

汽车排气系统振动模态分析及悬挂点优化

Vibration modal analysis and hanger location optimization of automobile exhaust system

层状地基对土坝振动模态特性的影响

The Effects of Layered Foundation on Mode Characteristics of Earth Dams

线性随机系统振动模态参数变异规律的研究

Research of Variability of Stochastic Modal Parameters About Linear Random System

微波幅度均衡器有限元振动模态分析

Vibration Modal Analysis Using Finite Element Method of Microwave Amplitude Equalizer

约束位置的修改对振动模态的影响

Influence of small changes of support location on vibration mode shapes

环境激励振动模态分析在桥梁结构检测与健康监测中的应用

Ambient Modal Analysis With Application In Bridge Inspection & Health Monitoring