Abstract
A multibody formulation is used to accurately describe the relation between the different components in chain drive systems and their full dynamics [1]. All components, including sprockets, are represented by rigid bodies connected to each other by revolute clearance joints [2]. The complete formulation is implemented in a computational simulation tool integrating all relevant dynamic characteristics inherent to chain drives and incorporated in the general-purpose multibody program [3]. Penalty contact force models are considered for modelling the revolute clearance joints, particularly those proposed by Lankarani and Nikravesh to quantify the normal contact force [4]. The friction force is accounted for based on the modified Coulombs friction law [2]. This work draws on the influence of dry contact parameters such as friction coefficient, restitution coefficient and clearance value on the dynamics of chain drives. The effect of a pretension level is also analyzed.
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