Study of Frictional and Impact Transients in Active-Passive Mechanical Pair

TL;DR

This paper investigates the transient dynamics of an active-passive mechanical pair involving Coulomb friction and impact, combining theoretical modeling with experimental validation relevant to various mechatronic systems.

Contribution

It introduces a combined modeling framework for impact and friction interactions and validates it through detailed experiments on vibro-impact dynamics.

Findings

Modeling framework accurately predicts impact and friction transients.

Experimental results confirm the validity of the theoretical assumptions.

Applicable to design and analysis of mechatronic systems with impact interactions.

Abstract

We consider an active-passive mechanical pair in which the relative motion of the latter is constrained by the mechanical impact. The system dynamics is described by the previously introduced modeling frameworks of force transition and dissipation through the nonlinear Coulomb friction and structural damping, the later in accord with Hertzian contact theory. The focus of the recent study is on combining both interaction mechanisms, and the detailed experimental evaluation which discloses validity of the modeling assumptions. Such mechanical pair interactions can be found in various mechatronic systems and mechanisms, like for example clutches, backlash elements, sliding items on the shaking and inclining surfaces, conveyor belts and others. This practical study demonstrates and discusses the transients of a vibro-impact dynamics and shows theoretical developments in line with experimental evaluation.