PROPAGATION OF BOUNDARY DISTURBANCES IN AN AXIALLY MOVING STRIP IN CONTACT WITH RIGID AND FLEXIBLE CONSTRAINTS

Authors
Citation
Wd. Zhu et Cd. Mote, PROPAGATION OF BOUNDARY DISTURBANCES IN AN AXIALLY MOVING STRIP IN CONTACT WITH RIGID AND FLEXIBLE CONSTRAINTS, Journal of applied mechanics, 62(4), 1995, pp. 873-879
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanics
Journal title
ISSN journal
0021-8936
Volume
62
Issue
4
Year of publication
1995
Pages
873 - 879
Database
ISI
SICI code
0021-8936(1995)62:4<873:POBDIA>2.0.ZU;2-5
Abstract
The exact expression describing the contact force between an axially m oving flexible strip and a one-sided constraint is derived using the G reen's function formulation. Discontinuity of the initial velocity at a boundary of the strip due to a disturbance, causes discontinuity in the contact force history at any constraint that is not modeled by a s ingle spring element. The discontinuities in the contact force occur a t the instants when those propagating wavefronts in the ship with nonv anishing slope interact with the constraint. A model of a magnetic tap e-recording head system is analyzed Tape-head contact loss is predicte d, depending on the amplitude and frequency of a disturbance, the head location, and the preload of the tape against the head.