本文选用锥壳单元，介绍了轴对称旋转壳模态分析方法。
Model analysis method with cone shell element for axisymmetric shell is discussed in this paper.
针对复杂振动表面的声辐射问题，提出一种模态分析方法。
For the acoustic radiation problems from a complex vibrating body surface, a model analysis approach is put forward.
通过计算实例，并同复模态分析方法比较，说明了该方法的有效性。
By comparing the results with those obtained by the complex modal analysis, it is shown that the present method is efficient.
通过计算实例，并同复模态分析方法比较，说明了该方法的有效性和精确性。
By comparing the obtained results with the results of complex modal analysis, it is shown that the present method is accurate enough and efficient.
分析了一般粘弹结构特征值问题的特点，建立了一般粘弹结构的模态分析方法。
The characteristics of the eigen value problem of general viscoelastic structure are analyzed and its modal analysis method is put forward in this paper.
本文采用有限元分析和实验模态分析方法对带有加强板的油底壳的振动进行分析。
In this paper, vibration of oil pan with reinforcing plate is analyzed through the method of finite element and experiment mode.
应用振动测试的模态分析方法，对钢筋混凝土结构锈裂损伤定位与识别进行了探讨。
Modal analysis method is used to discuss the location and identification of the damages to reinforced concrete structure due to corrosion and cracking.
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.
文摘：分析了一般粘弹结构特征值问题的特点，建立了一般粘弹结构的模态分析方法。
Abstract: the characteristics of the eigenvalue problem of general viscoelastic structure are analyzed and its modal analysis method is put forward in this paper.
首先，对目前较为常用的船体干模态分析方法迁移矩阵法与有限元法进行了比较研究；
First, a comparison study between two modal analysis method namely the transfer matrix method and finite element method is carried out.
用试验模态分析方法测取的系统前1阶模态参数，由于噪声等多种因素的影响，具有一定误差。
There must be errors for the measuring values of the first 1 order data of a system due to the noise and other factors in the Testing Model Analysis.
提出了一种新的计算弹性-粘弹性复合结构随机响应的各阶谱矩的计算方法，它是一种时域复模态分析方法。
In this paper, a new method of calculating random response spectral moments of elastic-viscoelastic combined systems under random excitations is presented.
提出了一种新的计算弹性-粘弹性复合结构随机响应的各阶谱矩的计算方法，它是一种时域复模态分析方法。
In the analysis of reliability of system under random excitations, the spectral moments of response are very important parameters.
以船舶辅机的梁式隔振结构为对象，运用模态分析方法和自适应算法，推导并分析了梁式结构振动主动控制的基本原理和方法。
The active vibration control of the beam structure, which is used in the isolation of the ships auxiliary machines, is studied by using modal analysis method and adaptive algorithm in this paper.
以船舶辅机的梁式隔振结构为对象，运用模态分析方法和自适应算法，推导并分析了梁式结构振动主动控制的基本原理和方法。
This paper establishes the general recurrence steps of using difference method for the frequency equation and mode shapes of discrete multi-mass shear structures.
本文提出在时域内分析水坝与地基动力相互作用问题的复模态分析方法，讨论了水坝与地基动力相互作用对水坝模态特性的影响。
In this paper, complex modal analysis for dam-foundation interaction problem in time domain is presented, and effects of dam-foundation interaction on modal characteristics of the dam are discussed.
首先在第二种约束方式下，利用有限元模态分析方法对几种不同板厚的机架进行了动、静态分析，得到了机架变形、应力及各阶振型与频率。
First, using second constrain, the static state and dynamic analysis applied to the frame of a few thickness plates with FEM modal analysis, distortion, stress, vibration and frequency were gained.
具体是采用非经典理论推导出FRP -RC复合梁的抗弯、抗剪刚度，然后提出结合ANSYS软件的FRP -RC结构有限元模态分析方法。
The non-classical theory is used to deduce the stiffness of FRP-RC composite beam, and with the help of CELL BEAM23 in software ANSYS the mode calculating method is brought forth too.
基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
Based on modal analysis to piezoelectric smart laminated plates, a finite inverse algorithm of the time history about impact loads by piezoelectric modal respondence is presented.
基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
Based on modal analysis of piezoelectric smart laminated plates, an FEM based inverse algorithm of the time history of impact loads by piezoelectric modal respondence is presented.
采用编译控制的译码方法，具体分析了译码的数据处理流程，介绍了模态指令处理等相关问题。
The way of compiling control coding is adopted, and coding data process flow is analyzed detailed, while some relevant problems such as modal instrument procession are introduced.
首先，本文对基于振动模态分析理论的损伤识别方法进行了探讨。
Firstly, the damage identification method based on vibration modal analysis theory is discussed and analyzed.
然后计算了考虑接地印迹长度的垂直接地动特性，并采用模态综合方法分析了车轮、悬架与车身组合系统的特性。
Then vertical contact dynamics of tire is analyzed with contact patch considered, and that of the system composed of wheel, suspension and car body are analyzed by using modal synthesis method.
模态分析法提供了一种有效的方法。
基于剩余模态力分析方法，提出了确定结构损伤位置的算法。
On the basis of the method of residual modal force analysis, the algorithm for determining the location of damage is presented.
采用有限元数值模型与实验模态分析相结合的方法，寻求动力安全设计的基本方法。
Using the synthetic method of both finite element and modal analysis searches after a basic way of dynamic Safety design.
首先介绍模态相关性分析的一般方法。
First, the general methods of modal correlation evaluation are presented.
首先介绍模态相关性分析的一般方法。
First, the general methods of modal correlation evaluation are presented.
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