Comparative Study of Improving Recognition about Modal Parameter by Using Different Methods

Author

Yang Zhuan-yun

Author_Institution

Sichuan Coll. of Archit. Technol., Deyang, China

Volume

3

fYear

2009

fDate

7-8 Nov. 2009

Firstpage

311

Lastpage

315

Abstract

The miscellaneous noise from structural vibration signals can affect recognition of precision of modal parameter, and it would affect illusive mode. Wavelet filtering and average method were used in recognition of modal parameter for studying the effect of resisting the interference of the noise. The simulation of one and five freedom system showed that recognition of modal parameter and submersed mode by noise would be improved by the usage of average method. The effect through the application of average method was good in resisting the interference of the noise, and it could improve recognition of precision of modal parameter which exceeded the effect of three averages.

Keywords

acoustic noise; modal analysis; noise abatement; structural engineering; vibrations; modal parameter recognition; noise interference; structural vibration signals; wavelet filtering; Artificial intelligence; Computational intelligence; Difference equations; Filtering; Frequency domain analysis; Integral equations; Interference; Modal analysis; Noise generators; Wavelet domain; average method; data containing noise; recognition of modal parameter; wavelet filtering;

fLanguage

English

Publisher

ieee

Conference_Titel

Artificial Intelligence and Computational Intelligence, 2009. AICI '09. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-3835-8

Electronic_ISBN

978-0-7695-3816-7

Type

conf

DOI

10.1109/AICI.2009.127

Filename

5376669