ISSN:
1573-269X
Keywords:
Identification
;
nonlinear vibration
;
vibration of continuous systems
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
Notes:
Abstract In previous papers, the authors proposed a new experimental identification technique applicable to elastic structures. The proposed technique is based on the principle of harmonic balance and can be classified as a frequency domain technique. The technique requires the excitation force to be periodic. This is, in some cases, a restriction. So another technique free from this restriction is of use. In this paper, as a first step for developing such techniques, a technique applicable to beams is proposed. The proposed technique can be classified as a time domain technique, two variations of which are proposed. The first method is based on the usual least-squares method. The second is based on solving a minimization problem with constraints. The latter usually yields better results. But in this method, an iteration procedure is used which requires initial values for the parameters. To obtain the initial values, the first method can be used. So both methods are useful. Finally, the applicability of the proposed technique is confirmed by numerical simulation as well as experiments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008383603257
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