本文用动态有限元理论计算及在线测试分析方法，对振动筛的强度作了分析，提出了筛体结构的改进方法。
The paper analysis strength of the vibrating screen, put forward improving method for its structure, with the dynamic finite element method and dynamic measure.
介绍了利用有限元分析软件ANSYS，对压电智能结构的主动振动控制系统进行优化设计的方法。
A method of optimum design on active vibration control system of piezoelectric smart structure using finite element analysis software ANSYS was introduced.
利用杆件结构有限元动力分析计算，并通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through beam structure finite unit dynamic analysis and experiment of RC model beam, we build the relationship between beam bridge attached load vibration characteristics and damaged model.
本文从这一基本认识出发，利用有限元法编制了船舶尾部结构振动计算程序，并以实船为对象进行了尾部结构振动的计算，取得了较好的效果。
Based on this point of view, a computer program to calculate the vibration of ship stern structures by using finite element method (FEM) is developed, and a sample problem is worked in this paper.
应用连续体振动理论和SAP5结构分析有限元程序，分析了液化石油气充瓶站管线振动问题。
Based on continuum theory, the vibration of pipeline in LPG filling stations has been analyzed by using the finite element program (SAP5) of structure analysis.
针对某125摩托车局部振动比较严重，采用有限元分析软件ANSYS，对该款车架进行了结构模态分析，得到车架固有频率和振型。
In view of the locally severe vibration of a 125 motorcycle, the paper makes a structure modal analysis with ANSYS to get the natural frequency and the vibration mode of the frame.
通过对直线运动平台的有限元分析和动静态频率仿真，确定了刀架振动的原因，并优化了刀架的结构。
By using finite element method (FEM) and by simulating the dynamic and static frequency, the reasons of vibration are clear and then the servo structure is optimized.
模态试验和仿真计算的对比分析结果表明，所建立的白车身有限元模型较好地反映了原结构的振动特性。
The contrastive analysis of modal test and simulation computation show that the finite element model of body-in-white has well represented the vibration characteristics of the original structure.
当结构在静水中振动时，如采用流体有限元来计算流体的附加质量和附加阻尼，势必导致解题规模过大。
When a structure vibrates in water, large amount of computation will be unavoidable if the fluid finite element method is used to calculate the added water mass matrix and damping matrix.
简要论述了振动模态分析方法，并指出有限元分析模型在结构整体监测中的重要性。
In this paper, the vibration model analysis is briefly introduced and the importance of finite element model (FEM) in the whole monitoring of structures is stressed.
对大型复杂结构振动有限元模型进行减缩降阶，是使结构有限元模型可有效地用在结构动力分析和振动计算方面的一个重要措施。
Reducing the order of a large structural finite element model is important in improving the efficiency of finite element analysis in the field of structural dynamics and vibration.
对某全承载式大客车进行了结构有限元分析，研究了该客车结构强度、振动模态频率、质量等多个性能目标的优化设计问题。
Structural FE analysis on an integral bus is performed, in which optimal design of multiple performance objectives of structural strength, vibration modal frequency and mass is researched.
在用有限元法分析结构动态响应特性的基础上，利用有限元分析得到结构表面振动速度分布，分析表面阻尼处理板结构的声辐射。
Based on the finite element analysis results of the dynamic properties of the structure, the acoustic radiation of the structure is analysed using the results of the surface velocity distribution.
本文从振动台试验和有限元计算等方面对高耸结构的地震响规律应做了较全面的研究。
In this paper, research on seismic response of tall flexible tower structures is performed through shaking table test and finite element analysis.
采用有限元方法研究复合材料层合板结构在线性温度场作用下非线性热振动特性。
By using the Finite Element Method (FEM), the nonlinear thermal vibration characteristics of composite laminated plates under linear temperature field were investigated.
利用有限元分析软件ANSYS对这种结构进行模态分析，得到其共振频率和一阶振动图；
Then the new structure is simulated with modal analysis by finite element analysis software ANSYS, and the resonant frequency and the first vibration map are presented.
液压剪板机采用钢板焊接结构，机身采用有限元分析设计、振动时效消除内应力，使机身稳定、可靠。
This machine adopts steel plate welding structure, the fuselage using the finite element analysis and design, Vibratory stress Relief of internal stress, so that body stable and reliable.
以镜架支撑安装基面上实测的地面振动速度功率谱密度为激励，运用ANSYS有限元分析软件的PSD分析模块，对该结构系统的随机振动响应进行了分析计算。
The PSD measured on the install base level of the mount as the excitation, the random vibration response of the mount was analyzed with the PSD module of ANSYS.
通过有限元软件计算出了筛体结构的固有频率、固有振型，为振动筛的大型化设计提供了理论依据。
The natural frequency and the natural mode of vibrating screen have been calculated by the software for FEM, proposes the theoretical basis for the design of large-sized vibrating screen.
揭示了液体晃动与结构弹性体振动的本质联系，便于应用结构有限元程序求解流体—结构耦合问题。
The present method can also be easily extended to solve liquid-structure interaction problems by using structural FEM codes.
利用有限元软件AN SY S和声学边界元软件SY SNO ISE对U型管道结构的受激振动与辐射声场进行分析。
Vibrations of an excited U-shape pipe and its radiation field are investigated by using FEM software ANSYS and acoustic BEM code SYSNOISE.
为了解决舰船结构的振动噪声预报及其控制问题，以能量密度为变量，获得了薄板结构受激励产生弯曲振动时的能量密度控制方程，并得到了控制方程的有限元解。
To better forecast and control the structural vibration and noise of naval vessels and other kind of ships, the energy finite element method was introduced.
采用有限元软件ANSYS参数设计语言（APDL）实现复合材料薄壁圆柱壳结构在线性分布温度场作用下的非线性热振动特性分析。
The nonlinear thermal vibration characteristic of the composite thin-cylindrical shells under linear temperature field is investigated by the ANSYS parametric design language(APDL).
基于流体的波动方程和结构的动力方程，利用有限元方法研究了考虑流固耦合时的双层加肋圆柱壳体的振动特性。
Based on the acoustic wave equation and structural motion equation, the vibration characteristics from the fluid loaded stiffened cylindrical double shell are studied by using finite element method.
本文基于结构动力修改，提供了修改的思路和方法：通过刘叠片联轴器联结的结构进行分析，利用有限元方法建立系统的力学模型以及系统扭转振动微分方程。
So structure parameters are needed to modify. This paper provides a good idea and effective methods based on the theory of structural dynamic modification to solve the problem.
采用有限元法研究了动力吸振器减小船体梁结构谐波振动响应的有效性。
The study of the effectiveness of the dynamic vibration absorber in reducing harmonic response of the ship hull girder using the finite element method is presented.
交替运用结构有限元法与声学边界元法，对齿轮结构振动声学特性数值计算问题进行了研究。
The numerical analysis of vibro - acoustic characters of a gear structure was carried out by use of structural FEM and acoustic BEM.
为了验证改进后托架结构的动力性能，本文建立了改进后的油泵托架的有限元模型，并利用该模型对改进后的油泵托架进行了模态分析和随机振动分析以及疲劳损伤计算。
In order to validate the dynamic characteristic of the improved fuel pump bracket, the new FEA model is set up and the modal analysis and the spectrum analysis are carried out.
建立了预估谐振载荷作用下结构振动疲劳寿命的损伤力学-有限元方法。
For predicting vibration fatigue life of engineering structures under resonant loading, damage mechanics-finite element method was constructed.
建立了预估谐振载荷作用下结构振动疲劳寿命的损伤力学-有限元方法。
For predicting vibration fatigue life of engineering structures under resonant loading, damage mechanics-finite element method was constructed.
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