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动力吸振器吸振性能的变化可以通过改变支撑刚度来实现。基于最小二乘法对吸振器支撑刚度在线辨识,仿真信号表明刀尖处随着支撑刚度的变化振动趋于稳定的时间缩短,系统响应更加优良。
Dynamic vibration absorber vibration performance changes can be achieved by changing the support stiffness. Based on the least square method, the on-line stiffness of the vibration absorber is identified online. The simulation results show that the vibration response tends to be stable and the system response is more excellent.