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8 - Introduction to Percussive Dynamics

Published online by Cambridge University Press:  21 March 2022

Joaquim A. Batlle  and
Ana Barjau Condomines
Joaquim A. Batlle
Affiliation:
Universitat Politècnica de Catalunya, Barcelona
Ana Barjau Condomines
Affiliation:
Universitat Politècnica de Catalunya, Barcelona
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Summary

All the previous theorems and methods are adapted to percussive problems (problems with sudden changes of velocities). The main idea is to integrate them over the percussion interval. The behavior of unilateral constraints is analyzed in detail. The energy balance in percussive situations is particularly challenging. The formulation of energy dissipation through coefficients of restitution (used extensively in the scientific literature but not always in a consistent way) is discussed with a rigor unusual in many texts on classical mechanics. Multiple-point and rough impacts (impacts with friction) are introduced at the end of the chapter.

Keywords

Percussionjoltpercussive forcepseudoworkelastic collisioninelastic collisionplastic collisioncoefficient of restitutionmultiple-point collisionrough collision
Type
Chapter
Information
Rigid Body Dynamics , pp. 504 - 578
Publisher: Cambridge University Press
Print publication year: 2022

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