Nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of profile error

Abstract

In this paper we investigate the nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of defects. The nonlinear developed lumped-mass model includes eight degrees of freedom with two nonlinear hertzian contacts. The first one is located between cam and first roller while the second is between second roller and the sliding rod. The nonlinear dynamic behaviour is described by second order differential equations which are resolved by using the implicit Newmark algorithm combined with the Newton-Raphson iterative scheme. The influence of the cam profile error on the dynamic behaviour is also investigated.

Keywords

cam / nonlinear behaviour / oscillating roller follower / profile error

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg