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Data Estimation At Unmeasured Positions Using Measured Receptance Frequency Response Function, Innovative Research Publications Irp India, Hee-Chang Eun, Dong-Ho Cho, Su-Yong Park
Data Estimation At Unmeasured Positions Using Measured Receptance Frequency Response Function, Innovative Research Publications Irp India, Hee-Chang Eun, Dong-Ho Cho, Su-Yong Park
Innovative Research Publications IRP India
The dynamic responses of finite element model do not match with those of the experimental results due to modeling and measurement errors. It is impractical to collect the data for the full set of DOFs of a dynamic system. And there are some cases to have difficulty in measuring the response such as slope. This work presents an analytical method to estimate the frequency response function (FRF) at the unmeasured nodes of the actual system. The method is derived by minimizing the discrepancy between the analytical and actual FRF data sets dividing into the real and imaginary parts. The validity …