研究了一般阻尼结构的模态阻尼优化设计方法。
A modal damping optimization method for general damped structures is developed in this paper.
本文建立了粘弹阻尼结构频响函数计算的高精度模态展开法。
An accurate modal superposition method for calculating frequency response function of viscoelastically damped structures is put forward.
该方法对于阻尼结构的优化设计有一定的意义,具有较强的工程实用性。
This method has certain significance on the optimization design of damping structure, and has comparatively strong practicality in engineering.
论文围绕宽温域高分子阻尼材料的制备、约束阻尼结构的设计展开研究。
The aims of this paper were to prepare polymer damping materials with wide temperature range and the designation of constrained damping structure.
本文介绍薄膜阻尼结构在使用时,如何选取处理位置才能达到预期的效果。
It is introduced how to select the position of film-damping treatment to obtain the best damping effect.
讨论了约束阻尼结构、多层阻尼结构和不同阻尼材料对阻尼峰移动的影响。
The influences of the constraint damping structure, multi layered constraint damping structure and different materials on the damping crest shift were discussed.
该结构为一种新颖双重约束阻尼结构,结构的约束层采用环氧树脂玻璃钢。
This is new double restrained damping structure where glass reinforced plastic is used in the restrained layers.
阻尼层厚度局部单元随机性的影响表明了对阻尼结构采用随机分析的必要性。
The influence of damping layer as random variable within each element shows that the random analysis for viscoelastic damped structure is necessary.
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。
In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.
对于小阻尼结构,结构的响应是如此之快以至于力锤常常来不及从结构上移开。
Often, with lightly damped structures, the response of the structure is so fast that the hammer can not move away from the structure due to the response of the structure.
车身多层阻尼结构的振动特性及隔吸声特性是影响车室空腔声响应的重要因素。
Vibration characteristics and sound insulation capability of multilayer damping panels are very important factors which dominate acoustic response in the interior of automobile bodies.
在林业机械与设备的液压机构与系统中,常常要采用一些阻尼结构来改善系统的性能。
Arched damping clearances are more used in the hydraulic system of forestry machinery or implements to improve the performance of the system at present.
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。
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.
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。
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.
为了更好地提高结构材料的阻尼减振能力,要在高阻尼结构材料的基础理论和制备工艺上实现新的突破。
In order to improve the capability of vibration damping of structure materials, innovation must be carried out from the aspect of basic theory and preparation techniques.
分析认为,氧化锌晶须渗入在复材中将形成微观的阻尼结构,起到降低固有振动频率和增大衰减率的作用。
By the analysis penetration of ZnOw into the compound board will compose a microscopic damping structure, which can reduce the vibration frequency and increase the damping ratio.
实例分析还表明,对于一般的强非比例阻尼结构,抗震设计规范中采用的强迫解耦方法也具有较好的精度。
Meanwhile, the forced mode uncoupling method widely used in seismic design code also has good approximation, even though the relatively simple example structure is strongly non-proportional.
对工程结构中阻尼矩阵的简化处理途径做了简要评述,指出目前常用的比例阻尼理论对于小阻尼结构是适用的。
A simplified approach in dealing with damping in structures is reviewed in this paper. It is pointed out that the proportional damping theory is adaptable for small damping structures.
基于平稳随机振动理论,推导了一般阻尼结构体系反应谱组合方法,以满足大跨度桥梁等结构抗震设计的需要。
A spectral combination rule is proposed based on the theory of random vibration of structures for the need of aseismic design of Bridges, etc.
借助动态热机械分析仪(DMAQ 800)对交替层合各向异性阻尼结构阻尼性能的影响权重最大层的各参数进行优化实验研究。
Experimental study on parameter optimization of the maximal influencing factor layer of alternately laminated anisotropic damped structures was carried out with dynamic mechanical analyzer (DMA Q800).
本文首先对各种阻尼结构进行了比较,分析了它们的优缺点,在此基础上提出了半主动分支电路可控压电阻尼和被动约束阻尼的混合结构。
In this paper, firstly, some damping structures are compared and their virtue and shortcoming are analyzed. On the basis of these, the semi-active-passive hybrid damping structure is put forward.
采用该模型对NOPD复合阻尼结构进行了动力学计算,计算结果与实验结果具有很好的一致性,为进一步研究NOPD的阻尼机理提供了一种理论分析方法。
The dynamic behavior of composite structures of NOPD is studied using this model. It is shown that the computational results are in very good agreement with those of experiments.
[16]潘利剑,张博明,戴福洪。 简谐激励下共固化复合材料黏弹阻尼结构的损耗因子研究[J]。振动与冲击,2008,27(2): 57-60。
PAN L J, ZHANG B M, DAI F H. Loss factor of viscoelastic damping composite material under harmonic excitation [J]. Journal of Vibration and Shock, 2008, 27(2): 57-60.
于是,这就有可能控制一个质量阻尼器的移动或相对地利用低功率来调整建筑物结构的硬度。
It is thus possible to control the movement of a mass damper or adjust the stiffness of a building's structure using relatively little power.
内部阻尼将任何在锥体结构中的鸣响或震动阻挡出去,否则会产生杂音。
Internal Damping damps out any ringing or vibrations in the cone structure that would otherwise color the sound.
在高层建筑结构振动控制中,阻尼器的配置是一个十分重要的问题。
The arrangement of smart damper in tall building is a very important question for structure vibration control.
最佳阻尼控制是一种结构参数(阻值向量)的最优化控制,设计简单。
The optimal damping control is a kind of optimal control of structure parameter (damping vector) with the feature of simple design.
利用粘滞阻尼器对工程结构进行减震是耗能减震方法中最有效的新型抗震技术之一。
Energy dissipation is a new kind of antiseismic technology. Structural shock absorption by viscous dampers is one of the most effective energy dissipation methods.
计算还揭示了局部刚度损伤对结构局部阻尼特性、振动能量分布和阻尼耗能行为的影响。
Moreover, the effect of local stiffness damages upon the local damping properties, vibration energy distribution, and the behaviors of damp dissipation of structures are investigated separately.
计算还揭示了局部刚度损伤对结构局部阻尼特性、振动能量分布和阻尼耗能行为的影响。
Moreover, the effect of local stiffness damages upon the local damping properties, vibration energy distribution, and the behaviors of damp dissipation of structures are investigated separately.
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