Analytic solution for planar indeterminate impact problems using an energy constraint

Abhishek Chatterjee, Adrian Rodriguez, A. Bowling

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)


This work proposes an analytic method for resolving planar multi-point indeterminate impact problems for rigid-body systems. An event-based approach is used to detect impact events, and constraints consistent with the rigid-body assumption are used to resolve the indeterminacy associated with multi-point impact analysis. The work-energy relation is utilized to determine post-impact velocities based on an energetic coefficient of restitution to model energy dissipation, thereby yielding an energetically consistent set of post-impact velocities based on Stronge’s energetic coefficient of restitution for the treatment of rigid impacts. The effect of stick–slip transition is analyzed based on Coulomb friction. This paper also discusses the transition from impact to contact. This analysis is essential for considering the rocking block problem that is used as an example herein. The predictions of the model for the rocking block problem are compared to experimental results published in the literature. An example of a planar ball undergoing two-point impact is also presented.
Original languageEnglish
Pages (from-to)347-379
JournalMultibody system dynamics
Publication statusPublished - Mar 2018
Externally publishedYes


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