Multi Body Dynamic Equations of Belt Conveyor and the Reasonable Starting Mode

Abstract

Based on the rigid finite element method and multibody dynamics, a discrete model of a flexible conveyor belt considering the material viscoelasticity is established. RFE (rigid finite element) and SDE (spring damping element) are used to describe the rigidity and flexibility of a conveyor belt. The dynamic differential equations of the RFE are derived by using Lagrange’s equation of the second kind of the non-conservative system. The generalized elastic potential capacity and generalized dissipation force of the SDE are considered. The forward recursive formula is used to construct the conveyor belt model. The validity of dynamic equations of conveyor belt is verified by field test. The starting mode of the conveyor is simulated by the model.

Dynamics modeling and simulation of steel cord conveyor belt based on dynamic elastic modulus

“…The equivalent elastic modulus of elastic deformation E F can be found by substituting the reciprocal of dDl=dT into equation (8), and then the mathematical equation of the dynamic elastic modulus of the conveyor belt with elastic deformation can be found by substituting into equation (7) as:…”

“…Gao 6 established a dynamic model and equations for conveyor belt systems based on the viscoelastic properties of conveyor belts, and conducted dynamic analysis. Guo and Wang 7 developed a flexible discrete model for conveyor belts considering material viscoelasticity using rigid-body FEM and multi-body dynamics, and validated the accuracy of the conveyor belt dynamic equation through on-site experiments. Li and Pang 8 established the continuous dynamic equations of belt conveyors using the Kelvin-Voigt viscoelastic model, and investigated the influence of different parameters on the vibration characteristics of belt conveyors.…”