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damping property     
相关语句
  阻尼性能
     Effects of Pre-Deformation on the Damping Property of Fe-14.04Mn-0.22C Alloy
     预变形量对Fe-14.04Mn-0.22C合金阻尼性能的影响
短句来源
     Study on Damping Property for CuAlBeX Alloy
     Cu-Al-Be-X合金阻尼性能研究
短句来源
     SIS-A/hydrocarbon resin(P140) with blend ratio of 40/60 exhibited good damping property in 57~109 ℃.
     SIS-A/石油树脂(P140)共混比为40/60时,共混物在57~109℃范围内的阻尼性能较好。
短句来源
     The results show that the damping capacity(Q ~(-1)) of two materials is (0.5~3.1)×10 ~(-2) in the temperature range of 20~250℃. The damping property of Al-Fe-Mo-Si/Zn-Al having more Zn-Al and a higher ratio of extrusion is superior to Al-Fe-Mo-Si/Al/Zn-Al's.
     结果表明:在20~250℃的温度范围内,两种材料的阻尼性能(Q-1)处于(0 5~3 1)×10-2之间,复合有较多Zn Al且挤压比较大的Al Fe Mo Si/Zn Al的阻尼性能要优于Al Fe Mo Si/Al/Zn Al。
短句来源
     The damping property of Al-Fe-Mo-Si matrix composite damping materials Al-Fe-Mo-Si/Zn-Al and Al-Fe-Mo-Si/Al/Zn-Al prepared by rapidly solidified/powder metallurgy(RS/PM) process is studied by means of measure of dynamic mechanical property, and the damping mechanism of the materials is discussed.
     通过对材料动态力学性能的测试,研究了采用快速凝固/粉末冶金工艺制备的Al Fe Mo Si基复合阻尼材料Al Fe Mo Si/Zn Al和Al Fe Mo Si/Al/Zn Al的阻尼性能,并对其阻尼机制进行了讨论。
短句来源
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  阻尼特性
     The Structural Damping Property of RE Zinc Base (C,Si) Composites
     稀土锌基(C,Si)复合材料的结构阻尼特性
短句来源
     An Experimental Study and Fitting Analyses of Dynamic Damping Property for ZN-17 Visco-Elastic Material
     ZN-17黏弹材料动态阻尼特性实验研究及其数据拟合分析
短句来源
     The LIPN of MMA/EMA/EA has been prepared by emulsion polymerization,and its damping property has been studied.
     用乳液聚合的方法制备了MMA/EMA/EA的LIPN ,对其阻尼特性进行了研究 ,并研究了增塑剂和填料对其阻尼性能的影响。
短句来源
     Research on Damping Property and Damping Micromechanism of High Damping Zn-27Al Alloy
     高阻尼Zn-27Al合金阻尼特性及机理研究
短句来源
     Damping Property and Its Micromechanism of ZA27 High Damping Alloy
     ZA27高阻尼合金的阻尼特性及微观机理的研究
短句来源
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  减振性能
     STUDY OF DAMPING PROPERTY OF CPE/BaTiO_3/VGCF COMPOSITE
     CPE/BaTiO_3/VGCF复合材料的减振性能研究
     Study on Monitoring Methods of Damping Property for Suspension System
     悬挂系统减振性能监测方法的研究
短句来源
     On the basis of the piezo effect and conductivity mechanism, a new damping composite of CPE/DZ/VGCF has been developed, the damping property has also been tested and analyzed in this paper.
     根据压电、导电原理 ,研制了 CPE/ DZ/ VGCF新型减振复合材料 ,对其减振性能进行了测试、分析 ,取得了较好的效果。
短句来源
     On the basis of the piezo effect and conductivity mechanism, a new damping composite of CPE/DZ/VGCF had been developed, the damping property was tested and analyzed in this paper.
     根据压电、导电原理 ,研制了 CPE/ DZ/ VGCF新型减振复合材料 ,对其减振性能进行了测试、分析 ,取得了较好的效果。
短句来源
     INFLUENCES OF Zn AND Al CONTENT OFMn-Cu DAMPING CASTING ALLOYON DAMPING PROPERTY
     Zn、Al对Mn-Cu减振合金减振性能的影响
短句来源
更多       
  阻尼行为
     The latest research progress of damping materials from five parts was reviewed with 35 references. The contents include the fields of polymer mechanical damping mechanism, experiment methods, damping behavior evaluation, the influence factors of damping property, the synthesis and property of different damping materials, and the IPN′s damping mechanism.
     对高聚物力学阻尼材料最近研究进展作了概述,内容涉及聚合物力学阻尼机理及实验方法,阻尼行为的评价,阻尼性能的影响因素,不同阻尼材料的合成及性质和互穿网络聚合物的阻尼机理。
短句来源
     It is found that different NCO contents had a great influence on the microphase morphology and damping property of polyurethane dry films.
     结果表明:预聚体的NCO含量不同即硬段含量不同对阳离子型水性聚氨酯的微相结构和阻尼行为有很大的影响。
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  damping property
The damping property of materials can be defined as the ratio of dissipated energy over the total strain energy during the loading-unloading process, called the specific damping capacity (SDC).
      
Granato has associated this interaction with a dislocation damping property.
      
The resulting closed-loop system (with the PID controller) has the desirable feature of being robust to gain variations with step responses exhibiting an iso-damping property.
      
The resulting closed-loop system (with the PID controller) has the desirable feature of being robust to gain variations with step responses exhibiting an iso-damping property.
      
7).6.When oscillating, the filiform hairs show a self-damping property.
      
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In this paper, a direct integration method used to solving non-linear structural dynamic differential equations, in which the acceleration is appr- oximated by second order polynomial of time interval is proposed. This method is unconditional stable no matter whether the physical damp- ing of the structure system is large or small so long as it exists. It possess third order accuracy and better arithmetic damping property. The effects of decay in amplitude and extension in period are remarkable on higher...

In this paper, a direct integration method used to solving non-linear structural dynamic differential equations, in which the acceleration is appr- oximated by second order polynomial of time interval is proposed. This method is unconditional stable no matter whether the physical damp- ing of the structure system is large or small so long as it exists. It possess third order accuracy and better arithmetic damping property. The effects of decay in amplitude and extension in period are remarkable on higher mode and very little on lower mode. Moreover, there is also no "over shoot", phe- nomenon in this method. In solving n degree of freedom structual dynamic problems by this method, when either the step length of time, structure rigidity or damping is changed, it needs to solve 2n×2n algebrac linar equations in one step. If all the step length of time, structure rigidity and damping are not changed, it needs only to complete the back substitution solving procedure in Gauss elimina- tion. This method has remarkable better properties than all other direct inte- gration methods existed.

本文对结构振动方程的逐步积分法提出了一个二级近似加速度一步法.本法在存在物理尼(不论大小)的情况下,是无条阵稳定的,具有三阶精度.较好的人工阻尼性质,振幅衰减和周期延长对低振型影响极小.对高振型影响很大,没有超越现象。本法对解n自由度的问题,当步长、刚度或阻尼改变时.每前进一步需要解 一个2n阶线性代数方程;如果步长、刚度、阻尼皆不变时,则只要完成相当于消去法的回代求解的过程即可.比现有的逐步积分方法有明显的优点。

Wilson 's θ-method is well known and is effectively used in the domain of structural dynamic analysis. An improvement is made in this paper in order to get more accurate results and to accelerate the convergence of the dynamic equations. The main idea is that the acceleration should be approximated in the time interval by a quadratic form:The accuracy is raised to O(Δt3 ) instead of O(Δt2 ) in the Wilson's method.The stability of the method is unconditional. In the sense that the physical damping of the structure...

Wilson 's θ-method is well known and is effectively used in the domain of structural dynamic analysis. An improvement is made in this paper in order to get more accurate results and to accelerate the convergence of the dynamic equations. The main idea is that the acceleration should be approximated in the time interval by a quadratic form:The accuracy is raised to O(Δt3 ) instead of O(Δt2 ) in the Wilson's method.The stability of the method is unconditional. In the sense that the physical damping of the structure system can either large or small so long as it exists. It has an accuracy of third order and a better arithmetic damping property. The effects of decay in amplitude and extension in period are remarkable on higher modes and very little on lower modes. Moreover, there is also no ' over shooting ' phenomenon in this method.In solving n degree of freedom structural dynamic problems by this method, when the step length of time, the structural rigidity or the damping is changed, it needs to solve 2n × 2n algebraic linear equations in each step. If all the step length of time, the structural rigidity and damping are not changed, it needs only to accomplish the back substitution solving procedure in Gauss elimination. This method has remarkable better properties than all other direct integration method.In the end of this paper numerical examples which are used to compare with other method are given.

本文对结构振动方程的逐步积分法提出了一个二级近似加速度一步法。本方法在有物理阻尼(不论大小)的情况下,是无条件稳定的,具有三阶精度,较好的人工阻尼性质,振幅衰减和周期延长对低振型影响极小,对高振型影响很大。没有超越现象。本方法对解结构动力反应问题,只当刚度。阻尼或步长改变时,每前进一步需解—2n阶线性代数方程;而当刚度、阻尼和步长皆不变时,每前进一步只需完成相当于回代求解的过程即可。比现有的逐步积分方法有明显的优点。

By the qualitative theory of differential equation, the existence and stability of self-excited vibration of a belt-spring oscillator system are proved whose phase-point goes through the segment of attraction. Not only has the author obtained the relation between the equation with I-type damping property and its limit-cycle containing the segment of attraction, its mechanical characteristics are also described in detail.

本文应用微分方程的定性理论,证明了相点通过“吸收线段”的皮带弹簧振子系统的自激振荡的存在性和稳定性,指出了具有Ⅰ型阻尼特性方程与相应的过“吸收线段”的极限环的关系,同时给出了详细的物理解释.

 
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