Structural Condition Monitoring by Cumulative Harmonic Analysis of Random Vibration
Structural Condition Monitoring by Cumulative Harmonic Analysis of Random Vibration
复制标题
通过随机振动累积谐波分析进行结构状态监测
DOI:
10.1155/2008/261758
复制
发表时间:
2008
影响因子:
--
通讯作者:
M. Tohyama
中科院分区:
文献类型:
--
作者:
Yoshinori Takahashi;T. Taniguchi;M. Tohyama
Analysis of signals based on spectral accumulation has great potential for enabling the condition
of structures excited by natural forces to be monitored using random vibration records. This
article describes cumulative harmonic analysis (CHA) that was achieved by introducing a spectral
accumulation function into Berman and Fincham's conventional cumulative analysis, thus enabling
potential new areas in cumulative analysis to be explored. CHA effectively enables system
damping and modal overlap conditions to be visualized without the need for transient-vibration
records. The damping and modal overlap conditions lead to a spectral distribution around dominant
spectral peaks due to structural resonance. This distribution can be revealed and emphasized
by CHA records of magnitude observed even within short intervals in stationary random vibration
samples.
DOI:
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发表时间:
2004
期刊:
Proc.of The 18th International Congress on Acoustics TU5.D.5
影响因子:
--
作者:
Y.Takahashi;M.Matsumoto;H.Yanagawa
通讯作者:
H.Yanagawa
DOI:
--
发表时间:
2006
期刊:
Proc. of 2006 IEEE International Symposium on Signal Processing and Information Technology
影响因子:
--
作者:
Toru Taniguchi;Mikio Tohyama;Katsuhiko Shirai
通讯作者:
Katsuhiko Shirai