Some Remarks on the Identification of Damping Parameters at the Boundary of Vibrating Systems

Autor:	Ulrich Pabst, Peter Hagedorn
Rok vydání:	1995
Předmět:	Physics Identification (information) Classical mechanics Thermoelastic damping Mechanical Engineering Mathematical analysis Magnetic damping medicine Boundary (topology) Stiffness medicine.symptom
Zdroj:	Applied Mechanics Reviews. 48:S107-S110
ISSN:	2379-0407 0003-6900
DOI:	10.1115/1.3005057
Popis:	In many cases, vibrating mechanical systems permit a reliable mathematical modeling with parameter values which are reasonably well known beforehand, except for the joints between different subsystems and at the boundaries. The boundary stiffness, which is often assumed as infinite, and the damping at the boundary, which is frequently ignored, are typically not well known. In this note, we discuss the identification of the boundary stiffness and damping parameters from modal data. As an example, we treat an elastic steel beam, for which an experimental modal analysis had been carried out in our laboratory.
Databáze:	OpenAIRE
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