将阶跃函数与牛顿二状态相结合 ,考虑曲柄非匀速运转 ,对含间隙平面连杆机构的副间分离与碰撞过程建立了动力学统一模型 ,利用该模型 ,引入粘弹性阻尼被动控制技术 ,通过算例分析了被动控制的效果。分析结果表明 ,在不改变机构基本参数的情况下将粘弹性材料引入到机构的间隙铰接处大大降低碰撞时引起的冲击效应 ,提高了机构运转的的稳定性 ,同时为含间隙机构控制领域的研究提供了新思路 Combining the step function with the Newtonian two states, considering the non-uniform crank operation, a unified dynamic model is established for the process of sub-separation and collision with the gap plane linkage. By using this model, the viscoelastic damping passive control technology is introduced, An example is given to analyze the effect of passive control. The analysis results show that the introduction of viscoelastic material into the clearance joints of the mechanism without changing the basic parameters of the mechanism greatly reduces the impact effect caused by the collision and improves the stability of the operation of the mechanism. Meanwhile, Research provides a new idea