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Proceedings Paper

A bi-stable oscillator for increasing damping and providing passive adaptability
Author(s): David R. Johnson; Manoj Thota; F. Semperlotti; K. W. Wang
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Paper Abstract

This research investigates a bi-stable oscillator which, through snap-through actions, can significantly increase energy dissipation loss factor and provide passive damping adaptability with respect to input amplitude and frequency. The increase in motion generated during snap-through leads to a significant increase in the energy dissipated by the embedded damper and the corresponding loss factor. The system parameters can be designed such that the snap-though threshold occurs at different input amplitudes. Overall, the device can be programmed to adjust damping to changes in the loading environment in a passive manner.

Paper Details

Date Published: 27 March 2012
PDF: 9 pages
Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83410A (27 March 2012); doi: 10.1117/12.913290
Show Author Affiliations
David R. Johnson, Univ. of Michigan (United States)
Manoj Thota, Univ. of Michigan (United States)
F. Semperlotti, Univ. of Notre Dame (United States)
K. W. Wang, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 8341:
Active and Passive Smart Structures and Integrated Systems 2012
Henry A. Sodano, Editor(s)

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