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Title Transcription
Duffingケイ ノ シュウハスウ オウトウ カンスウ ニ オケル イソウカク ノ セイド
Title Alternative (English)
Accuracy of phase angle of frequency response function for Duffing oscillator
File
language
jpn
Author
Teramoto, Kai
Description
The accuracy of the frequency response functions for the amplitude ratio and the phase of a Duffing oscillator is investigated.The authors proposed the criterion to distinguish the states of the stochastic jump phenomenon using wavelet transform and the phase of the frequency response function which is derived by the method of multiple scales. But, the amplitude ratio is verified in many studies, the phase is seldom examined. So it is necessary to confirm the accuracy of the phase of the frequency response function. In this study, the amplitudes and phases of approximated frequency response functions are compared to the results of numerical integration. The amplitudes ratio by the numerical integration are evaluated from the maximum value of response and the discrete Fourier transform at the frequency of the excitation, and the phase is evaluated only from the discrete Fourier transform.These results agree well, and the accuracy of the approximated frequency response function for the phase as well as the amplitude ratio is confirmed.
Journal Title
島根大学総合理工学研究科紀要. シリーズA
Volume
46
Start Page
1
End Page
4
ISSN
13427113
Published Date
2013-01-31
NCID
AA12637000
Publisher
島根大学総合理工学研究科
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
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