A modal damping optimization method for general damped structures is developed in this paper.
研究了一般阻尼结构的模态阻尼优化设计方法。
The subsequent experiments on a piezoelectric beam show that the structural modal damping ratio can be promo...
压电悬臂梁的实验表明，它们能使结构模态阻尼比大幅提高。
The subsequent experiments on a piezoelectric beam show that the structural modal damping ratio can be promoted significantly.
压电悬臂梁的实验表明，它们能使结构模态阻尼比大幅提高。
Influence of the magnetic damper on bending modal damping of the system is studied by theoretical and experimental modal analysis.
通过理论计算及试验模态分析，研究了磁悬浮阻尼器参数对系统弯曲模态阻尼比的影响。
The main vibration modes and modal damping of cable-stayed bridge with CFRP cable were similar to those of steel cable-stayed bridge.
CFRP拉索斜拉桥的主要振型及模态阻尼分布规律与钢索斜拉桥类似；
The results show that modal damping ratio of cable system with MR damper is more increased, it has well effect of mitigating vibration.
试验结果显示系统的模态阻尼比在安装磁流变阻尼器后有大幅增长，具有良好的减振效果。
In general, the variation of structure parameters has more effect on the mean values of mode than those of modal frequencies and modal damping ratios.
第一阶模态振型相对均值系统的变化很小。一般地，结构参数的随机变异对模态振型均值的影响大于对模态频率、模态阻尼比均值的影响。
The influences of nonuniform vertical flow on helicopter trim controls and regressive lag modal damping levels were analyzed in hovering and forward flight.
分析了直升机从悬停到小速度前飞时，定常垂直气流的非均匀分布对直升机平衡操纵以及对系统摆振后退型模态阻尼的影响。
The natural frequency, modal shape and modal damping ratio of the typical structural of composite wallboard (rapid wall) system are got by dynamic behavior measurement.
通过实测复合墙板试点工程结构的动力反应，获得了结构的自振频率、振型和阻尼比等模态参数。
To overcome the difficulties in the solving process brought by the multi-modal damping model, the modal transformation strategy and the precise time-integration method are applied.
采用了模态变换和精细积分法，解决了考虑多阶模态的阻尼矩阵给求解所带来的困难。
Firstly, the composite modal damping ratio should be adopted in dynamic analysis of SSI system, and then the method how to estimate the composite modal damping ratio of SSI system was illustrated.
文中首先阐明了在SSI体系直接动力分析中应采用合成模态阻尼比的观点，研究了合成模态阻尼比的实测确定方法。
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.
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。
A modal value analysis method is presented to obtain a reduced-order dynamic model with modal coordinates for structures with small damping or without damping.
针对小阻尼和无阻尼结构，提出了一种模态价值分析方法，用于在模态坐标下的动力学模型降阶问题。
The viscoelastic damping control of steady-state harmonic response of stiffened plate is studied by using modal superposition method.
应用模态叠加法研究了用粘弹性阻尼控制加筋板的稳态简谐响应。
After testing the intrinsic characteristic of power assemblys flexural vibration of a light passenger coach with modal cognition technology, a damping power shock absorber is designed.
应用模态识别技术对某轻型客车动力总成弯曲振动的固有特性进行了测试，设计了一阻尼式动力吸振器。
The dynamic response of the damping multi-DOF structural system is usually calculated by the real modal analysis method.
求解有阻尼多自由度结构系统的振动微分方程，实模态分析法是得到广泛应用的一种有效方法。
In this paper, using the information of the forced vibration response of the deterministic modal system, identification are made for the parameters of the stiffness and damping structure.
本文利用确定性模型系统的的强迫振动响应信息对系统的刚度和阻尼结构参数进行了认别。
Some modal natural frequencies and damping coefficients of a structure are derived by means of in-sita testing displacement records and the time domain identification technique.
本文根据原型振动实测的位移记录，应用时间域识别法，求得了结构的前几阶模态的固有频率和阻尼比。
It Outlines the fundamentals and the basic mathematical model of identifying modal frequency and damping by means of parameter identification with frequency domain and time domain.
简要介绍了用频域参数识别方法和时域参数识别方法识别模态频率和阻尼的基本原理和基本数学模型。
Eigenfrequency, vibration pattern and damping ratio can be got by modal experiment. Then, these parameters can be used to structural design and optimization.
通过模态试验，可以计算出结构的固有频率、模态振型、阻尼比等参数，为结构设计与优化打下坚实的基础。
The modal loss factor of an orthogrid-stiffened composite panel is studied using the present method and particular attention is paid to the effect of ribs on damping.
本文将该方法应用于一种复合材料等间距正交网格加筋板的阻尼特性分析，考察了加筋对复合材料层合板阻尼特性的影响。
This paper analyzes the natural frequency and modal loss factor of stiffened plates with viscoelastic damping treatment by finite element method.
对敷设粘弹性阻尼的加筋板的固有频率和模态损耗因子进行了分析。
The results show that, due to the effect of viscoelastic damping, the attenuation coefficient increases with the increasing of modal order, while the vibrational frequencies decrease with it;
计算结果表明，在粘弹性阻尼作用下，衰减系数随振型阶数而增大，振动频率随之不断减小；
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.
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 modal strain energy ratio of PAF to whole system is a critical variable to evaluate the contribution of the CDL to the whole system damping.
星箭支架变形能占全箭模态总能量的比例是约束阻尼层阻尼贡献的重要参考量。
The direct modal perturbation based on selecting point by number-theoretic method is proposed to find the random response of un-damping linear random structures.
针对于多自由度线性复合随机结构的随机自振特性分析，提出了基于数论选点的直接模态摄动法。
The direct modal perturbation based on selecting point by number-theoretic method is proposed to find the random response of un-damping linear random structures.
针对于多自由度线性复合随机结构的随机自振特性分析，提出了基于数论选点的直接模态摄动法。
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