非線形回転軸系の時間領域実験的同定法(機械力学,計測,自動制御)

概要

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As a basis for developing experimental identification techniques for rotating machinery, the authors proposed in previous papers an experimental identification technique for linear and nonlinear rotating shaft systems. The proposed technique is based on the principle of harmonic balance, and is classified as the frequency domain technique. The technique requires data of periodical responses of the system. To obtain this type of data is not always convenient. Thus another technique free from this inconvenience is of use. In this paper, a new experimental identification technique is proposed. The proposed technique is classified as the time domain one. Two variations of the technique are proposed. The first method is based on the usual least square method. The second is based on a minimization method for a 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. As the initial values, the results of the first method can be used. So both methods are of use. Finally the applicability of the proposed technique is confirmed by numerical simulation as well as experiment.
一般社団法人日本機械学会の論文
2002-02-25