101 Accuracy verification of TPA method by performing simple structure test

Abstract

In this study ， we verified accuracies of tw kinds of transfor path analysis methods by perferming a simple structure test ． Inverse matrix method using transfer functions and principal c 。mponcnt analysis method using only running data were exarnined ． As the result of experiments ， the accuracies ofthese methods were clarified to drop occasionally in some f 卜 equencies ， but the frequencies are different each other ． These results indicato that it is necessary to select suitable transfer path analysis method accerding to the target frequency fbr obtaining contribution ofnoise and vibration accurately． Key we rds ：Transfer path analysis ， Inverse matrix method ， Principa 且component regression method