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对非线性混合隔振系统的动力学特性进行了定性分析,并以滑膜变结构算法为基础设计了混合隔振系统的控制模型,通过相关算例验证了该控制模型在非线性刚度条件下的有效性,仿真结果表明:非线性混合隔振控制效果明显优于被动隔振和线性隔振系统,非线性刚度的引入可有效降低基础所受冲击载荷。文中所研究的控制方法对实际工程中非线性混合隔振系统的设计具有重要的指导意义。
The dynamic characteristics of the nonlinear hybrid vibration isolation system are qualitatively analyzed. The control model of the hybrid vibration isolation system is designed based on the synovial variable structure algorithm. The numerical results show that under the condition of nonlinear stiffness, The simulation results show that the non-linear mixed vibration isolation control effect is obviously superior to the passive vibration isolation and linear vibration isolation system. The introduction of nonlinear stiffness can effectively reduce the impact load on the foundation. The control method studied in this paper has an important guiding significance for the design of nonlinear hybrid vibration isolation system in practical engineering.