This paper described the non-linear motion equation of belt conveyor based on belt sag,with a lumped element model. It deduced the belt equivalent stiffness and studied its non-linear property.

• 用离散单元模型建立了基于胶带悬垂度的带式输送机非线性运动微分方程,推导了胶带等效刚度表达式,分析其非线性特性及对运动微分方程的影响。