Experiments on Nonlinear Dynamic Behavior of an Oscillator With Clearance and Periodically Time-Varying Parameters
- 1 March 1997
- journal article
- Published by ASME International in Journal of Applied Mechanics
- Vol. 64 (1), 217-226
- https://doi.org/10.1115/1.2787276
Abstract
A number of experiments on a physical system with clearance having combined parametric and external forcing excitation are presented. The data demonstrate several nonlinear phenomena that exist in periodically excited oscillators subject to clearance at a contact interface. Jump discontinuities in forced response curves are shown to exist and subharmonic resonances which are formed by period-n (nT) motions with n ≥ 2 are demonstrated. Long-period subharmonic motions with periods as long as nine times the excitation period are reported. Finally, several cases of measured chaotic motions are also illustrated through time-traces, phase portraits, Fourier spectra, and Poincare plots which form strange attractors.Keywords
This publication has 29 references indexed in Scilit:
- INTERACTIONS BETWEEN COMMENSURATE PARAMETRIC AND FORCING EXCITATIONS IN A SYSTEM WITH CLEARANCEJournal of Sound and Vibration, 1996
- Steady state forced response of a mechanical oscillator with combined parametric excitation and clearance type non-linearityJournal of Sound and Vibration, 1995
- Analytical solution for modulation sidebands associated with a class of mechanical oscillatorsJournal of Sound and Vibration, 1995
- Response of a Periodically Driven Impact OscillatorJournal of Sound and Vibration, 1994
- An Experimental Study of an Impacting PendulumJournal of Sound and Vibration, 1993
- Observations of Subcritical Superharmonic and Chaotic Response in RotordynamicsJournal of Vibration and Acoustics, 1992
- Interactions between time-varying mesh stiffness and clearance non-linearities in a geared systemJournal of Sound and Vibration, 1991
- Non-linear dynamics of a spur gear pairJournal of Sound and Vibration, 1990
- Non-linear frequency response characteristics of an impact pairJournal of Sound and Vibration, 1989
- Forced periodic vibration of unsymmetric piecewise-linear systemsJournal of Sound and Vibration, 1988