Title
Multisine load cycle design for fatigue testing Multisine load cycle design for fatigue testing
Author
Faculty/Department
Faculty of Applied Engineering Sciences
Publication type
article
Publication
London ,
Subject
Engineering sciences. Technology
Source (journal)
International journal of fatigue. - London
Volume/pages
26(2004) :1 , p. 95-102
ISSN
0142-1123
ISI
000186835100009
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
To experimentally quantify the fatigue life of critical airplane components (such as, for instance, the slat tracks), extensive tests must be performed on a test rig. In this paper, a method is proposed to design the load signal which has to be applied in order to exactly obtain a certain damage content. The method presented uses a (band-limited) perturbed multisine (MS) excitation signal. Therefore, the load can be easily controlled. In addition, because the designed multisine is periodic, the health of the structure can easily be monitored on-line. The proposed method will be validated both on simulations and on (low cycle) fatigue measurements of a steel beam. (C) 2003 Elsevier Ltd. All rights reserved.
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