通过实验得到了物料层的多项式滞回力模型,建立了双腔振动颚式破碎机的动力学模型和物料作用时的非线性振动方程,并对其非线生动力学特性进行了分析,从而得知物料、间隙和激振频率对振动系统的影响。 The polynomial hysteretic model of the material layer was obtained by experiments. The dynamic model of the dual-cavity vibrating jaw crusher and the nonlinear vibration equation of the material were established. The nonlinear dynamic characteristics of the material were also analyzed. Effect of material, clearance and excitation frequency on vibration system.