Identification of Acoustic-Vibratory System by Acoustic Measurement | Zendy

Takuzo IWATSUBO | Zendy; Shozo KAWAMURA | Zendy; Masahito Kamada | Zendy

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Identification of Acoustic-Vibratory System by Acoustic Measurement

Author(s) -

Takuzo IWATSUBO,

Shozo KAWAMURA,

Masahito Kamada

Publication year - 1996

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/1996/925970

Subject(s) - superposition principle , vibration , acoustics , identification (biology) , inverse , matrix (chemical analysis) , property (philosophy) , mode (computer interface) , computer science , mathematics , mathematical analysis , physics , materials science , geometry , philosophy , botany , epistemology , composite material , biology , operating system

A new method for reducing ill-conditioning in a class of identification problems is proposed. The key point of the method is that the identified vibration of the sound source is expressed as a superposition of vibration modes. The mathematical property of the coefficient matrix, the practical error expanding ratio, and the stochastic error expanding ratio are investigated in a numerical example. The mode-superposition method is shown to be an effective tool for acoustic-vibratory inverse analysis.

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