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The nonlinear restoring force is expressed into both parts of the linear mainbody and the nonlinear auxiliary. 将系统的非线性恢复力表示为线性主部和非线性辅部;
Response Computation of a Vibration System with Viscous Damping and Nonlinear Restoring Force In cluding Bilinear Hysteretic Friction and Cubic.Displa cement Terms 含有三次非线性的粘性阻尼双线性迟滞振动系统的响应计算
nonlinear restoring force 动态刚度
The dynamics equation of self-steering EEF bogie with TRW is derived and the gravity restoring force is expressed as Taylor's expansion of nonlinear tread gradient. 建立自调节独立车轮走行部的运动方程，并采用踏面斜率的泰勒级数对重力复原力的表达式进行简化。
Analyses show that this model can describe the effect of nonlinear dynamic stiffness and the damping of the coupling on the nonlinear hysteretic restoring force very well. 分析表明，该数学模型能很好地描述联轴器的非线性动刚度和阻尼等动态特性对迟滞恢复力的影响，为深入研究船舶推进轴系的振动特性提供了联轴器的数学模型。
Based on analysis of a bilinear hysteretic model with Coulomb friction damping, a new dynamic model with nonlinear memoryless restoring force is obtained by experimental modeling and parameter identification. 在分析库仑摩擦阻尼双线性滞迟模型的基础上,通过试验建模和参数辨识,得到了无记忆恢复力亦为非线性力的动力学模型。
In the process of identification,a bilinear model,based on which the identification equations are obtained,is used to describe the memorial restoring force of the nonlinear hysteretic system. 在识别过程中，将非线性迟滞系统的记忆恢复力用双折线模型来描述，并由此模型写出非线性迟滞系统的参数识别方程。
Then on the basis of experiment, a restoring force model of reversal skeleton curve of SRC wall was built, and this model can be used in nonlinear seismic analysis of SRC structures. 在试验的基础上，本文建立了型钢混凝土剪力墙恢复力骨架曲线的数学模型，为分析高层结构的非线性地震反应分析提供了基础数据。
The restoring force in a vibrating flexible membrane arises from the tension with which it is stretched. 柔性膜振动时的回复力起因于使膜绷紧的张力。
Kx Restoring force: Force that make the oscillator return to the balance position. 简谐运动的规律:回复力:使振子返回平衡位置的力。
The superstructure and rubber isolator are considered as linearly elastic, while the model of restoring force of the damper is bi-linear. 文中采用的地震波为过滤高斯白噪声，上部结构及叠层橡胶隔震器为线弹性，铅阻尼器为双线性恢复力模型。
By summarizing the study situations of restoring force experiments and models, it is indicated the direction that should be to be. 总结了恢复力特性试验和模型研究的发展状况，最后指出了这一研究课题应发展的方向。
The parameters in the restoring force model corresponding to the design parameters of SRC member and structure are also determined. 建立了型钢砼结构(空腹式)的光滑恢复力模型参数与结构设计参数的关系；
The system is simplified into single degree of freedom dynamics model with piecewise linear restoring forces and square damping, then the piecewise nonlinear motion equation of ALT is established. 将该系统简化为单自由度分段线性恢复刚度,含平方阻尼的动力学分析模型,建立了铰接装载塔的分段非线性运动方程。
The tested results are much identical with the numerically simulated results, and this proves the accuracy of the model of restoring force of the SMA damper. 通过振动台模型试验，验证了SMA阻尼器卓越的阻尼性能以及对大跨斜拉桥地震反应的控制效果，且试验结果与数值仿真结果吻合较好，进一步验证了SMA阻尼器恢复力模型的正确性。
The leading explanation is that they are gravity waves, in which the restoring force is buoyancy, as when you try to force a piece of wood into water and it bobs up and down. 主要的解释认为它们是以浮力为恢复力的重力波，就好像你试著强压一块木头入水时，木头会不断浮沉般。
Static test shows that EDB can dissipate a great deal of earthquake input, energy and its restoring force is an elastoplastic one. Besides, the stresses of the bracing are always within the elastic range. 静力试验表明,耗能支撑能耗散大量地震输入能,它的恢复力特性曲线是弹塑性曲线,并且支撑中应力始终保持在弹性范围内。
The results demonstrate that the length of the backwater region increases monotonously with the friction coefficient and decreases with the linear and the non-linear restoring force parameters. 结果表明，停滞区长度随摩擦系数单调增加而随线性与非线性恢复力参数单调减小；
The results show that the prediction precision of the cubic restoring force equivalent model improves with nonlinearity strengthening of the system vibration for different threshold values of drift. 结果表明,在不同位移阈值条件下,随着系统振动非线性的增强,立方恢复力等效模型预测精度逐步提高。
After the action of an initial disturbance, the vibration of a system around its equilibrium position under the action of only a restoring force is called an undamped free vibration. 物体受到初干扰后，仅在系统的恢复力作用下在其平衡位置附近的振动称为无阻尼自由振动。