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hysteretic damping     
相关语句
  迟滞阻尼
     The Parameter Identification of Dynamic Models of Nonlinear Hysteretic Damping Isolators
     非线性迟滞阻尼减振器动力学模型参数识别
短句来源
     The harmonic balance approximate calculating method used in single degree of freedom system of hysteretic damping is studied on the background of the test of a metal rubber damper applied to an aeronautic engineering.
     本文以某航空用金属橡胶阻尼器试验为背景,对单自由度迟滞阻尼系统进行谐波平衡近似求解方法研究。
     All research provide some theoretical guidance for the designing and application of this type of hysteretic damping system.
     为该类迟滞阻尼系统的设计与应用提供理论指导。
     Harmonic Balance Analysis of SDOF System of Hysteretic Damping
     单自由度迟滞阻尼系统的谐波平衡分析
     The experimental results show that multi-layer steel plate isolator has good hysteretic damping performances and the relation between the rigidity and the energy dissipation coefficient is non linear.
     实验结果表明,多层钢板隔振器具有良好的迟滞阻尼性能,隔振器的刚度和能耗系数都随形变的变化而呈非线性变化;
短句来源
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  滞后阻尼
     Hysteretic Damping Application in Time Domain Analysis of Soil Layer
     滞后阻尼在土层时域分析中的应用
短句来源
     From the analysis of several earthquake waves,BP(back propagation) neural networks model is built to predict the translation frequency of damping coefficient and thus provide basis for the use of the hysteretic damping coefficient to carry out reaction analysis of soil layers in time domain.
     利用实际地震波的分析结果,建立了阻尼系数转换频率的BP神经网络预测模型,从而为利用滞后阻尼系数在时域中进行土层反应分析提供了依据。
短句来源
     4. Based on the assumption of hysteretic damping, seismic response of soil layer wasanalyzed by using the methods of time domain and frequency domain separately.
     4.采用滞后阻尼假定,分别应用时域和频域分析方法对土层的地震反应进行计算。
短句来源
     Upon on the basis,the free interface CMS theory was developed for hysteretic damping structure.
     在此基础上,发展了滞后阻尼结构的模态综合理论。
短句来源
     So the hysteretic damping can be analyzed in the time domain.
     从而为利用滞后阻尼系数在时域中进行土层地震反应分析提供依据。
短句来源
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  滞回阻尼
     Applications on the linear hysteretic damping of single degree of freedom by Hilbert transform
     Hilbert变换在SDOF线性滞回阻尼中的应用
短句来源
     So far the G/G_max-γ(Transient dynamical shear modulus over the maximum shear modulus vs. shear strain) and theλ-γ (equivalent shear hysteretic damping ration vs. shear strain) curves are widely employed in the experimental method in studying soil dynamic property, supposing under equiamplitude cyclic load.
     目前,人们利用实验手段分析土体动力特性时给出的最基本的描述量是G/G_(max)—γ曲线(等效动剪切模量与最大动剪切模量的比值随应变幅值变化的曲线)及λ—γ曲线(等效剪切滞回阻尼比值随应变幅值变化的曲线)。
短句来源
     The SMA-rubber bearing with hysteretic damping is initially developed by incorporating SMA wires and laminated rubber pad.
     将形状记忆合金(SMA)索与普通叠层橡胶垫复合可以形成具有滞回阻尼性能的SMA-橡胶隔震支座。
短句来源
     With the help of Hilbert transform,the time domain and frequency domain expressions of linear hysteretic damping are provided in the structural system of single degree of freedom.
     借助 Hilbert变换 ,给出了线性滞回阻尼在单自由度结构体系下的时域表达法和频域表达法 .
短句来源
     The pile is assumed to be vertical, elastic and of uniform cross-section, and the soil is regarded as a linear visco-elastic layer with hysteretic damping.
     假定桩为竖直弹性等截面体,土为线性粘弹性体,其材料阻尼为滞回阻尼
短句来源
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  滞变阻尼
     The correspondence between viscous damping and hysteretic damping models was explained,which lays a basis for evaluating damping ratio of structural control element under major earthquake.
     简述了粘滞阻尼与滞变阻尼模型之间的联系和对应关系,作为结构振动控制元件在强震下阻尼推算的理论基础.
短句来源

 

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      hysteretic damping
    Hysteretic damping of structural materials under biaxial dynamic stresses
          
    All the nonlinearities, the hysteretic damping, and small bending moments of the rubber layers are taken into account to compute the nonstationary rolling with slip and spin on uneven roads or soft ground.
          
    But, the peak magnification factor reduces with an increase in the magnitude of lateral load mainly because of increase of hysteretic damping at very soft consistency.
          
    It is shown how hysteresis in the force curve and hysteretic damping forces influence not only the excitation amplitude but also the frequency shift.
          
    The present analysis can also be extended to the study of the vibration of such beams with viscous and hysteretic damping and other kinds of beams and other structural elements with arbitrary nonhomogeneity and arbitrary variable thickness.
          
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    A method is developed in this paper for determining the variation range of modal parameters of linear systems with hysteretic damping effected by local modifications. This method can be used to find out the upper and lower bounds of natural frequencies and modal damping coefficients resulting from the modifications of stiffness or damping coefficient of a specific element. A diagrammatic method and a numerical procedure presented in this paper provide efficient ways to estimate the capacity...

    A method is developed in this paper for determining the variation range of modal parameters of linear systems with hysteretic damping effected by local modifications. This method can be used to find out the upper and lower bounds of natural frequencies and modal damping coefficients resulting from the modifications of stiffness or damping coefficient of a specific element. A diagrammatic method and a numerical procedure presented in this paper provide efficient ways to estimate the capacity of local modifications for improving the structural dynamical responses and to optimize the locations and the quantities of modification.

    本文讨论局部修改对于具有结构阻尼线性系统的模态参数的影响范围.所提出的数值方法和近似作图法可以给出在局部修改刚度或阻尼时系统固有频率和阻尼损耗因子变化范围的上下限.它们可以用来估计局部修改在改进结构动态响应方面所具有的能力,为选择合理的修改部位及修改量提供必要的数据.

    In this paper, a new method, the step-reduction method, is proposed to investigate the dynamic response of the Bernoulli-Euler beams with arbitrary nonho-mogeneity and arbitrary variable cross section under arbitrary loads. Both free vibration and forced vibration of such beams are studied. The new method requires to discretize the space domain into a number of elements. Each element can be treated as a homogeneous one with uniform thickness. Therefore, the general analytical solution of homogeneous beams with...

    In this paper, a new method, the step-reduction method, is proposed to investigate the dynamic response of the Bernoulli-Euler beams with arbitrary nonho-mogeneity and arbitrary variable cross section under arbitrary loads. Both free vibration and forced vibration of such beams are studied. The new method requires to discretize the space domain into a number of elements. Each element can be treated as a homogeneous one with uniform thickness. Therefore, the general analytical solution of homogeneous beams with uniform cross section can be used in each element. Then, the general analytic solution of the whole beam in terms of initial parameters can be obtained by satisfying the physical and geometric continuity conditions at the adjacent elements. In the case of free vibration, the frequency equation in analytic form can be obtained, and in the case of forced vibration, a final solution in analytical form can also be obtained which is involved in solving s. set of simultaneous algebraic equations with only two unknowns which are independent of the numbers of elements divided. The present analysis can also be extended to the study of the vibration of such beams with viscous and hysteretic damping and other kinds of beams and other structural elements with arbitrary nonhomogeneity and arbitrary variable thickness.

    在本文中提出一个新方法——阶梯折算法来研究在任意载荷下任意非均匀和任意变厚度伯努利-欧拉梁的动力响应问题.研究了自由振动和强迫振动.新方法需要将区间离散为一定数目的元素,每个元素可看作是均匀和等厚度的.因此均匀、等厚度梁的一般解可在每个元素上应用.然后用初参数表示的整个梁的一般解使之满足相邻二元素间的物理和几何连续条件,这样就可以得到解析形式的自由振动的频率方程和解析形式的强迫振动的最终解,它化为求解二元线性代数方程,与离散元素的数目无关.现在的方法可推广应用至任意非均匀及任意变厚度有粘滞性和其他种类的梁以及其他结构元件问题上去.

    In this paper, a structural damping force model is generalized and represented as a solid damping theory——the frequency dependant viscous damping theory, and from this the complex damping theory is established rationally; in addition, the relationships among the parameters of them and the viscous damping theory commonly used are given. In the related studies, some methods of response analysis for an oscillator with a frequency dependant viscous damper are presented, which is subjected to an arbitrary disturbing...

    In this paper, a structural damping force model is generalized and represented as a solid damping theory——the frequency dependant viscous damping theory, and from this the complex damping theory is established rationally; in addition, the relationships among the parameters of them and the viscous damping theory commonly used are given. In the related studies, some methods of response analysis for an oscillator with a frequency dependant viscous damper are presented, which is subjected to an arbitrary disturbing force, and also the solution of the corresponding problem of multidegree of freedom is introduced. Finally, the necessary discussion of a problem about a hysteretic damping theory is made.

    本文对一个结构阻尼力模型进行概括,将其表述为一个固体阻尼理论:频率相关粘性阻尼理论,并由此出发合理地建立了复阻尼理论;此外给出了它们和常用粘性阻尼理论的参数之间的关系式。文中提出了频率相关粘性阻尼振子在任意扰力作用下的响应分析方法,还研究了相应的多自由度系统问题,最后对有关的滞变阻尼问题进行了必要的讨论。

     
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