Kinematics Simulation of Multi–rope Friction Winder Based on Flexible Multi-body Dynamics

Abstract

In order to realize the formulaic modeling and precise solution of a flexible multi-body winder system, a dynamic model with Lagrange multipliers is established by natural coordinates. Based on RecurDyn software, a Rigid-Flexible Couple model was established through using the method of flexible multi-body dynamics, and the simulation of kinematical characteristics of the friction winder was carried out. By introducing the relative nodal method, the simplified dynamic equations have been derived via the virtual work principle and validated on a virtual prototype with the RecurDyn software package and ANSYS. Kinematics and dynamics characteristic date are obtained by computer-aided dynamic simulation of virtual Multi – rope friction winder. The research work will provide a powerful tool and useful method for the design of economic and credible elevator system. The approach can be generalized to analysis other flexible drive fields.