啄木鸟装置自激振动的动态仿真

摘要

Woodpecker device can generate self-excited vibration, and need to rely on the friction force to com -plete a series of actions.In order to study the complex nonlinear motion process of woodpecker system , it solves the linear complementary problem in self-excited vibration based on the Lagrange equation , and obtains the mo-tion characteristics of the woodpecker device .The self-excited vibration woodpecker device can complete peri -odic motion,and does not need to rely on the power and control .Dynamic simulation of the whole continuous cy-cle show that the cycle motion is passive and stable, test prototype is also verified the correctness of the simula-tion.%啄木鸟装置可以产生自激振动，这种运动需要依赖摩擦力的作用，从而完成一系列的动作。为了研究啄木鸟装置系统的非线性的复杂运动过程，通过拉格朗日方程对自激振动中线性互补问题进行求解，从而得到啄木鸟装置的运动特性。啄木鸟装置可以通过自身的自激振动，而不需要依赖任何的动力和控制完成周期性的运动。整个连续周期的动态仿真表明其是稳定的周期被动运动，试验样机也验证了仿真的正确性。