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Excitation and Measurement Points Selection to Identify Structural Parameters for Model Tuning
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 Title & Authors
Excitation and Measurement Points Selection to Identify Structural Parameters for Model Tuning
Park, Nam-Gyu; Park, Yun-Sik;
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 Abstract
A sensor placement technique to identify structural parameter was developed. Experimental results must be acquired to identify unknown dynamic characteristics of a targeting structure for the comparison between analytical model and real structure. If the experimental environment was not equipped itself properly, it can be happened that some valuable information are distorted or ill-condition can be occurred. In this work the index to determine exciting points was derived from the criterion of maximizing parameter sensitivity matrix and that to choose measurement points was from that of preserving the invariant of sensitivity matrix. This idea was applied to a compressor hull structure to verify its performance. The result shows that the selection of measurement and excitation points using suggested criteria improve the ill-conditioning problem of inverse type problems such , as model updating
 Keywords
Sensor Placement;Parameter Identification;Model Tuning;
 Language
Korean
 Cited by
 References
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