Zheng Muqiao, Li Li, Hu Sheping. Research on Estimation of Frequency Response Function[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1993, 2(1): 27-37.
Citation:
Zheng Muqiao, Li Li, Hu Sheping. Research on Estimation of Frequency Response Function[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1993, 2(1): 27-37.
Zheng Muqiao, Li Li, Hu Sheping. Research on Estimation of Frequency Response Function[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1993, 2(1): 27-37.
Citation:
Zheng Muqiao, Li Li, Hu Sheping. Research on Estimation of Frequency Response Function[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1993, 2(1): 27-37.
Based on an investigation of existing methods for estimating fre- quency response functions（FRF）at home and abroad,two methods are ad- vanced.The one,denoted as H
12,avoids underestimates at resonances and overestimates at antiresonances,while the other,denoted as H
F,regards the noise ratio of output to input as varying with the frequency.Finally,a soft- ware for estimating frequency response functions is introduced.A modal test for a steel plate excited with a random signal is made,and frequency response function estimates are made,making use of the above software.The test re- sults conform well with the theoretical analysis.
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