上述讨论进一步完善了已有的复模态矩阵摄动法。
The matrix perturbation of Complex modes has been improved by the present discussions.
对称部分是实模态摄动，反对称部分是复模态摄动。
The symmetric perturbation is of real mode and the antisymmetric is of complex mode.
在此基础上，介绍了由频响数据识别复模态参数的导纳圆拟合法。
On this basis, the mobility circle fitting method for identifying the complex modal parameters from frequency response data is discussed.
用自由界面的复模态综合法对具有迟滞阻尼的结构进行动力分析。
The dynamic processing method using high modal is given in the complex-modal synthesis technology using free boundary for structure dynamic analysis with the hysteresis damping.
揭示了系统所受的是低频激励，以非线性复模态的形式作随机振动。
It is found that the system is subjected to the low-frequency excitation and occurs random vibration in the non-linear complex-mode form.
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.
采用复模态分析求取特征值和特征向量，进而得到系统的模态参数。
Complex modal analysis is then performed to calculate the eigenvalues and eigenvectors, and then modal parameters are obtained.
阐述了复模态理论，分析了系统自由振动在复特征向量空间内的特性。
The complex mode theory is presented, with analysis of the characteristics of the free vibrations of these systems in the complex eigenvector space.
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.
从而建立了多自由度隔震结构非线性随机响应复模态分析的一整套计算方法。
A complete set of calculating methods for complex modal analysis of nonlinear random response of structures with multi-degrees of freedom and base isolation are proposed.
应用上述方法对悬臂约束阻尼层梁的复模态参数进行了分析，并进行了实验验证。
The method has been applied to the complex model analysis of a sandwich cantilever beam with viscoelastic damping material core and verified experimentally.
运用该体系复模态分析的统一方法，得到了结构响应及动力可靠度的解析表达式。
Using the above method, the analytic expressions of response and dynamic reliability are got.
提出了一种基于不完备复模态测量数据修正阻尼陀螺系统有限元模型的有效数值方法。
An efficient numerical method for the finite-element model updating of damped gyroscopic system was developed based on incomplete complex modal measured data.
对粘性比例阻尼与一般粘性阻尼两种情况分别进行了多自由度系统的实模态与复模态分析。
The real modal analysis and complex modal analysis are respectively applied to the multi-degree-of -freedom system according to the different damp.
在模态试验的基础上，用模态综合及复模态方法分析了汽车制动时鼓式制动器的尖叫特性。
On the basis of modaling experiments, the squealing characteristic of drum brake, when motor vehicle is being braked, is studied by applying modal synthesis and complex modaling methods.
本文提出一种分析机车横向运动稳定性的方法，即利用复模态的矩阵摄动法来计算临界速度。
This paper presents a new method of analyzing locomotive lateral stability, that is, the critical velocity is calculated by use of the complex mode matrix perturbation theory.
本文从复模态理论出发，探讨了在机床模态分析中，应用脉冲激振法激励机床时的一些问题。
Based on the complex modal theory, some problems arising in machine tool modal analysis by impulse excitation are examined.
运用复模态理论对考虑海洋平台结构与流体相互作用而引起的非经典阻尼问题进行了理论分析。
Theoretical analysis was conducted for the dynamic equation problem of non-classical damp of offshore platform structure under stochastic wave load.
本文提出用多点频响函数来识别系统的复模态参数，建立了系统加权平均传递函数的假设模型。
This paper offers an assumed model called system weighted Average Tranafer Function of a linear vibration system to identify the complex modal parameters by using multi-point measured frequency data.
把复模态分析法推广到刚度矩阵可以奇导且质量矩阵、阻尼矩阵和刚度矩阵均不必为对称的情形。
The complex modal analysis method is generalized to the cases in which stiffness matrix may be singular and mass matrix, damping matrix and stiffness may be nonsymmetric.
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.
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.
分别采用最小二乘复频域法和最小二乘复指数法对某轿车白车身进行了实验模态分析并对其结果进行比较和分析。
EMA on a car body-in-white (BIW) is conducted using both PolyMAX and least squares complex exponent method (LSCE) with their results compared and analyzed.
结果表明，采用该方法能够有效地识别出模态振型，从而弥补了复指数法在未知激励下进行模态分析的不足。
The results show that the present method can identify the mode shape accurately and complement the use of PRCE under unknown excitation condition.
结果表明，采用该方法能够有效地识别出模态振型，从而弥补了复指数法在未知激励下进行模态分析的不足。
The results show that the present method can identify the mode shape accurately and complement the use of PRCE under unknown exci…
结果表明，采用该方法能够有效地识别出模态振型，从而弥补了复指数法在未知激励下进行模态分析的不足。
The results show that the present method can identify the mode shape accurately and complement the use of PRCE under unknown exci…
应用推荐