1) hysteretic vibration isolation system
滞迟隔振系统
1.
The parameter identification of dynamic model of hysteretic vibration isolation system with unsymmetrical elasticity and viscous damping is studied,in which the relationship between the elastic restoring force and deformation is unsymmetrical.
研究了非对称弹性粘性阻尼滞迟隔振系统动力学模型的参数识别方法,该模型中弹性恢复力与位移变形之间存在非对称关系。
2) bilinear hysteretic isolation system
双线性滞迟隔振系统
1.
In the paper, by using the incremental harmonic balance method (IHB) , the vis-cous damped bilinear hysteretic isolation system with cubic restoring force on flexible foundation is studied and the influnce of flexible foundation on displacement transmissibility is investigated.
本文运用增量谐波子衡(IHB)法研究了安装于柔性基础上的含有三次非线性粘性阻尼双线性滞迟隔振系统,考察了基础柔性对隔振性能的重要影响作用,为这类干摩擦隔振系统在工程上的实际应用提供了理论依据。
3) nonlinear hysteretic vibration isolation system
非线性迟滞隔振系统
1.
In this paper,an ellipse-like function is defined firstly,then a dynamic model for nonlinear hysteretic vibration isolation system is proposed by using such function,and the practical expression of the system is deduced.
应用类椭圆函数建立了非线性迟滞隔振系统的动力学模型,并导出了系统动力学模型的实用表达式。
4) hysteretic vibration system
迟滞振动系统
5) hysteretic system
迟滞系统
1.
The random vibration problem of a hysteretic system excited by colored noise is transformed into that of the extended system, consisting of hysteretic system and the filter, excited by white noise.
首先为随机激励设计了具有较高精度的滤波器 ,把迟滞系统受有色噪声激励的随机振动问题转化为由迟滞系统与滤波器组成的扩阶系统受白噪声激励的随机振动问题 ,然后详细论述了等效线性化法对此问题的具体求解 ,着重推导了高斯随机变量联合矩的递推关系和李亚普诺夫方程解法的实现 ,最后根据数字模拟结果分析了等效线性化法的精度和误差来源 ,给出了迟滞减振系统参数设计的有关建
2.
In order to find out the speciality of the hysteretic system under random excitation, random responses and model parameters of hysteretic system were studied by the method of stochastic equivalent linearization and Mento-Carlo simulation.
迟滞阻尼振动系统的恢复力可分为无记忆和有记忆两部分,本文针对双线性迟滞模型和Bouc-Wen迟滞模型分别推导出随机力激励作用下迟滞系统的等价线性化参数表达式。
6) hysteretic system
滞迟系统
补充资料:隔振
隔振 vibration isolation 采用适当的弹性兼阻尼装置以隔离机械振动的措施。根据激振源的不同,隔振可分为两类:①对于本身是振源的结构物,为减少其振动对周围人和物的影响,用隔振器材(如天然或人造橡胶制品、软木、毛毡制品、泡沫塑料、金属弹簧制品、不锈钢丝网制品、各种高分子化合物的粘弹性材料制品等)把振源与支承隔离开,以减小传给支承的不平衡惯性力,称为积极隔振,又称主动隔振。水泵、发动机、锻锤机械等的隔振就属此类。积极隔振系数ηz表示积极隔振效果,它等于隔振后传到支承上的力与未隔振时传到支承上的力之比。②对于振源来自支承的情况,为减少支承传给结构物的振动,把结构物安装在一个隔振台上,使它与支承隔离,这种措施称为消极隔振,又称被动隔振。精密仪器、车厢和舰艇上导弹发射架的隔振等均属此类。消极隔振系数ηb表示消极隔振效果,它等于隔振后结构物的振幅与支承运动的振幅之比。隔振系数小表示隔振效果好。两类隔振系数的计算公式相同。对于单自由度隔振系统, 说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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