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研究利用一种摩擦力随振动幅值的增大而增大的阻尼铰进行结构振动的被动控制。首先分析了含干摩擦约束铰结构单体梁的振动特性，并给出了系统随振动幅值变化的等效固有频率和粘性阻尼的定量表达式，然后建立了在桁架结构中设置此种摩擦铰的振动方程，分析了系统的动力特性，由计算结果发现，这种摩擦铰具有良好的阻尼特性；通过这种非线性元件，不仅通过滑移时消耗能量，而且可以将能量由低阶模态转移到高阶模态来加速振动衰减。
In this paper, the passive control of structural vibration is carried out by using a damping hinge whose friction force increases with the vibration amplitude. Firstly, the vibration characteristics of single beam with dry friction constrained hinge are analyzed, and the quantitative expressions of equivalent natural frequency and viscous damping of the system with vibration amplitude are given. Then, the friction is set in the truss structure The vibration equation of the hinge is analyzed and the dynamic characteristics of the system are analyzed. It is found from the calculation results that the friction joint has good damping characteristics. With this nonlinear element, not only the energy is consumed by sliding, but also the energy can be reduced from the low-order mode State transitions to higher modes to accelerate vibration attenuation.