基于Euler Bernoulli理论的压电系统集中参数模型修正

摘要： 针对压电俘能系统悬臂梁结构集中参数模型的局限性，引入Euler Bernoulli梁振动模型。通过分析两模型在振动时相对位移传递率发现，集中参数模型在基础激励情况下，传递率峰值存在较大偏差。理论分析了Euler Bernoulli及集中参数模型在一阶模态附近位移传递率函数，对集中参数模型进行了修正。仿真结果表明修正后的集中参数模型相对位移传递率峰值与Euler Bernoulli模型在低阶模态吻合良好。

Vibration Reduction in Flexible Mechanism Using Input Shaping

Based on input shaping technique, the residual vibration reduction of flexible mechanism in point-to-point motion is studied. The Zero Vibration （ZV）, Zero Vibration and Derivative （ZVD） and Extra Insensitivity （El） shapers have been designed according to liner pendulum. Then, they are applied in liner pendulum system to suppress the residual vibration induced by point-to-point motion. Comparing the pole angles, it is found that ZV, ZVD and El shapers can effectively reduce the residual vibration of liner pendulum. The result of experiment demonstrates that input shaping technique can reduce the resid- ual vibrations in liner pendulum when the point-to-point motion stops.