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在非线性迟滞阻尼减振器的建模中可以把减振器恢复力分为几部分:非线性弹性力,非线性阻尼力,以及由于摩擦引起的迟滞力. 恢复力与位移变形之间般存在非对称关系,该文采用实验建模方法,根据系统达到最大变形位置前后恢复力与变形的本构关系不同,利用最小二乘法识别出滑移极限等模型参数. 考虑实际噪声污染的影响,用小波变换进行信号预处理,既去除噪声又较好地保留了时城信号的形状和相位,从而使识别具有实际可行性“,”In the process of modeling an nonlinear hysteretic damping isolator,the restoring force can be analyzed into several components.which include the nonlinear elastic force,the nonlinear damping force and the hysteretic restoring force originated from dry friction.of the three forces.the relationship between the restoring force and deformation can be unsymmetrical.In the course of modeling through experiments as introduced by the present paper.the maximum deformation is firstly determined.Then according to different constitutive equations between deformation and the restoring force before and after reaching maximum deformation, the model parameters concerning the gliding limit and so on are identified directly by employing the least squares. Considering the influence of actual noise pollution, signals are subjected to the pretreatment of wavelet transformation which not only enables denoising.but also retains the shape and phase of time domain signals. Hence, the whole process of identification becomes feasible.