✦ LIBER ✦

VIBRATIONAL POWER FLOW ANALYSIS OF DAMAGED BEAM STRUCTURES

✍ Scribed by T.Y. LI; W.H. ZHANG; T.G. LIU

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 243 KB
Volume: 242
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.2000.3345

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✦ Synopsis

In view of structure-borne sound, vibrational power #ow analysis is investigated for damaged beam structures. In this paper, the damage is modelled as a joint of a local spring. The damage point transfer matrix and the beam element transfer matrix are deduced, then the relations of the vibrational power #ow, the position and the characteristic size of the damage are obtained combined with periodic structure theory. Based on the theoretical analysis and measurement results, the damage can be diagnosed in the next work.

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