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Proceedings Paper

Identifying damping of a subsystem by two inverse-dynamics methods
Author(s): Daniel J. Segalman; Clark R. Dohrmann; James A. Kearns
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Paper Abstract

A strategy is presented to develop computationally efficient models for a class of structures containing nonlinearities. Those structures are ones for which the predominant nonlinearity is in the interfaces of linear subsystems. In those cases, one hopes to achieve low order models for the linear subsystems coupled with simplistic models for the interfaces. The theme of this paper is that of deducing the properties of the nonlinear interfaces by examining the properties of the full nonlinear structure in light of the known properties of the linear subsystems. Situations where such problems arise include those where the nonlinearity derives from sliding friction or stick-slip friction. Those conditions can seriously compromise system performance if not addressed adequately, occasionally leading to either sloppy control or complete loss of stability. It is the problem of identifying those nonlinear subsystems that is addressed here.

Paper Details

Date Published: 1 May 1996
PDF: 14 pages
Proc. SPIE 2720, Smart Structures and Materials 1996: Passive Damping and Isolation, (1 May 1996); doi: 10.1117/12.239107
Show Author Affiliations
Daniel J. Segalman, Sandia National Labs. (United States)
Clark R. Dohrmann, Sandia National Labs. (United States)
James A. Kearns, Univ. of Turabo (Puerto Rico) (United States)

Published in SPIE Proceedings Vol. 2720:
Smart Structures and Materials 1996: Passive Damping and Isolation
Conor D. Johnson, Editor(s)

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