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Titolo:
Vibrations of a four-degree-of-freedom rigid body sliding against a wavy surface
Autore:
Pholsiri, C; Bryant, MD;
Indirizzi:
Univ Texas, Dept Engn Mech, Austin, TX 78712 USA Univ Texas Austin TX USA78712 exas, Dept Engn Mech, Austin, TX 78712 USA
Titolo Testata:
JOURNAL OF SOUND AND VIBRATION
fascicolo: 5, volume: 235, anno: 2000,
pagine: 763 - 786
SICI:
0022-460X(20000831)235:5<763:VOAFRB>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEM STIFFNESS; COPPER SURFACES; WEAR RATE; FRICTION; REDUCTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Pholsiri, C Univ Texas, Dept Engn Mech, Austin, TX 78712 USA Univ Texas Austin TX USA 78712 ngn Mech, Austin, TX 78712 USA
Citazione:
C. Pholsiri e M.D. Bryant, "Vibrations of a four-degree-of-freedom rigid body sliding against a wavy surface", J SOUND VIB, 235(5), 2000, pp. 763-786

Abstract

It has been shown that certain patterns of surface waviness on a counter surface, in conjunction with speed and stiffness of a slider can create vibrations that reduce slider wear. This study attempts to simulate these vibrations, with the goal of understanding how the slider interacts with the surface waviness, to produce a given vibration. This paper develops a model ofa four-degree-of-freedom rigid body pressed against a sliding counter surface, and studies its vibration motions under several conditions. The four degrees of freedom include one translation normal to the sliding surface andthree rotations. The effects of waviness of the counter surface on the system responses are also studied. To model loading effects between the sliderand a wavy counter surface that has multiple points of contact, an equivalent contact point is defined that is assumed to move along a certain path on the slider's contact surface. Several possible paths of the equivalent contact point over the slider face were studied, and their effects are discussed. With appropriate choice of parameters, the simulation results were comparable to experimental results obtained in a previous study. (C) 2000 Academic Press.

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Documento generato il 14/11/18 alle ore 03:10:50