在较特殊的条件下,与复模态分析法的结果是一致。
The results here are consistent with those given by the complex modal analysis method when it is applicable.
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.
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.
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.
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.
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.
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 the analysis of reliability of system under random excitations, the spectral moments of response are very important parameters.
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.
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.
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.
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.
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.
并利用时域最小二乘法和复模圆法对实验数据进行了三维的模态参数和振型分析。
Modal parameters and vibration type were obtained by the method of least squares time domain, complex modal analysis and the experimental data.
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.
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.
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.
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.
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…
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