STICK-SLIP ANALYSIS IN VIBRATING TWO-LAYER BEAMS WITH FRICTIONAL INTERFACE

Authors

  • HAMID M. SEDIGHI DEPARTMENT OF MECHANICAL ENGINEERING, SHAHID CHAMRAN UNIVERSITY, AHVAZ
  • KOUROSH H. SHIRAZI DEPARTMENT OF MECHANICAL ENGINEERING, SHAHID CHAMRAN UNIVERSITY, AHVAZ
  • KHOSRO NADERAN-TAHAN DEPARTMENT OF MECHANICAL ENGINEERING, SHAHID CHAMRAN UNIVERSITY, AHVAZ

Keywords:

STICK-SLIP PHENOMENON, TWO-LAYER BEAM, INTERLAYER SLIP, FRICTIONAL INTERFACES, CHAOTIC MOTION

Abstract

THIS PAPER ATTEMPTS TO PRESENT A NEW ANALYSIS FOR DYNAMICAL BEHAVIOR OF TWO-LAYER BEAMS WITH FRICTIONAL INTERFACE WHICH HELD TOGETHER IN A PRESSURIZED ENVIRONMENT, INCLUDING STICK-SLIP NONLINEAR PHENOMENON. TO ACHIEVE A PROPER OUTLOOK OF TWO-LAYER BEAM STRUCTURES BEHAVIOR, IT IS ESSENTIAL TO REALIZE THE MECHANISMS OF MOTION PRECISELY. COUPLED EQUATION OF TRANSVERSAL AND LONGITUDINAL VIBRATION OF TWO-LAYERS IN THE PRESENCE OF DRY FRICTION IS DERIVED AND NONDIMENSIONALIZED. FURTHERMORE, FREE AND FORCED VIBRATION OF THE MENTIONED SYSTEM IS INVESTIGATED AND THE SYSTEM DYNAMICS IS MONITORED VIA POINCARE MAPS AND LYAPUNOV EXPONENT ANALYSIS. A COMPARATIVE STUDY WITH ANSYS IS DEVELOPED TO SHOW THE ACCURACY OF THE PROPOSED APPROACH.

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Published

2013-03-23

Issue

Vol. 10 No. 5 (2013)

Section

Articles

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