Characterisation and suppression of chattering in impacting structures
Characterisation and suppression of chattering in impacting structures
The study of impact oscillators is based on bifurcation theory as a condition monitor. Impact motion is characterised by parameters such as driving frequency and clearance. The possible bifurcations (period-doubling, saddle node and grazing) are investigated. Different types of impact chattering (complete, incomplete, periodic, chaotic and intermittent chattering) are found in different driving frequency regions. These dynamics are interpreted using impact maps and Poincaré maps, and impact resonance is predicted using analytic and numerical methods. Schemes for suppression of impact resonance are introduced using isolation subsystems. The characteristics of impact phenomena and the suppression schemes presented in this thesis are validated experimentally using a cantilever beam with an inelastic endstop.
University of Southampton
1997
Lee, June-Yule
(1997)
Characterisation and suppression of chattering in impacting structures.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
The study of impact oscillators is based on bifurcation theory as a condition monitor. Impact motion is characterised by parameters such as driving frequency and clearance. The possible bifurcations (period-doubling, saddle node and grazing) are investigated. Different types of impact chattering (complete, incomplete, periodic, chaotic and intermittent chattering) are found in different driving frequency regions. These dynamics are interpreted using impact maps and Poincaré maps, and impact resonance is predicted using analytic and numerical methods. Schemes for suppression of impact resonance are introduced using isolation subsystems. The characteristics of impact phenomena and the suppression schemes presented in this thesis are validated experimentally using a cantilever beam with an inelastic endstop.
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Published date: 1997
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Local EPrints ID: 463019
URI: http://eprints.soton.ac.uk/id/eprint/463019
PURE UUID: 4bd0b4d2-1552-44bc-8cdf-ff8732f61857
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Date deposited: 04 Jul 2022 20:38
Last modified: 04 Jul 2022 20:38
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Author:
June-Yule Lee
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