Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction

Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction

The impact between a rotating link and a solid flat surface is considered. For the impact, we consider three distinct periods: elastic period, elastoplastic period, and restitution period. A Hertzian contact force is considered for the elastic period. Nonlinear contact forces developed from finite e...

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Main Authors: Dorian Cojocaru, Dan B. Marghitu
Format: Article
Language:English
Published: Hindawi Limited 2020-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2020/5471629
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spelling doaj-881e087a5c564ed8b80746253c5aa2d62020-11-25T04:06:16ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472020-01-01202010.1155/2020/54716295471629Impact Behavior of a Rotating Rigid Body with Impact and Viscous FrictionDorian Cojocaru0Dan B. Marghitu1Department of Mechatronics and Robotics, University of Craiova, Craiova, RomaniaDepartment of Mechanical Engineering, Auburn University, Auburn, AL 36849, USAThe impact between a rotating link and a solid flat surface is considered. For the impact, we consider three distinct periods: elastic period, elastoplastic period, and restitution period. A Hertzian contact force is considered for the elastic period. Nonlinear contact forces developed from finite element analysis are used for the remaining two phases. The tangential effect is taken into account considering a friction force that combines the Coulomb dry friction model and a viscous friction function of velocity. Simulations results are obtained for different friction parameters. An experimental setup was designed to measure the contact time during impact. The experimental and simulation results are compared for different lengths of the link.http://dx.doi.org/10.1155/2020/5471629
collection DOAJ
language English
format Article
sources DOAJ
author Dorian Cojocaru
Dan B. Marghitu
spellingShingle Dorian Cojocaru
Dan B. Marghitu
Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction
Mathematical Problems in Engineering
author_facet Dorian Cojocaru
Dan B. Marghitu
author_sort Dorian Cojocaru
title Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction
title_short Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction
title_full Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction
title_fullStr Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction
title_full_unstemmed Impact Behavior of a Rotating Rigid Body with Impact and Viscous Friction
title_sort impact behavior of a rotating rigid body with impact and viscous friction
publisher Hindawi Limited
series Mathematical Problems in Engineering
issn 1024-123X
1563-5147
publishDate 2020-01-01
description The impact between a rotating link and a solid flat surface is considered. For the impact, we consider three distinct periods: elastic period, elastoplastic period, and restitution period. A Hertzian contact force is considered for the elastic period. Nonlinear contact forces developed from finite element analysis are used for the remaining two phases. The tangential effect is taken into account considering a friction force that combines the Coulomb dry friction model and a viscous friction function of velocity. Simulations results are obtained for different friction parameters. An experimental setup was designed to measure the contact time during impact. The experimental and simulation results are compared for different lengths of the link.
url http://dx.doi.org/10.1155/2020/5471629
work_keys_str_mv AT doriancojocaru impactbehaviorofarotatingrigidbodywithimpactandviscousfriction
AT danbmarghitu impactbehaviorofarotatingrigidbodywithimpactandviscousfriction
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