Dynamic modeling of a sheep hair shearing device using recurdyn and its verification

Abstract

This paper discusses a general procedure for creating a computer-aided design (CAD) model of an existing commercial sheep hair shearing device for simulation purpose. In this paper, simulation was carried out using the commercial software RecurDyn while the CAD models of the components of the device were created using SolidWorks software. Note that the mechanism in the device can be identified as an RCCR spatial four-bar linkage which was also modeled analytically from its kinematics point of view. The dynamic equations of motion were developed using the concept of the cut-joint approach and the Decoupled Natural Orthogonal Complement (DeNOC) matrices. The equations of motion were then used to simulate the mechanism in Matlab environment. The results were compared to those obtained using the CAD model in RecurDyn environment.