精密小型加振機を用いた単純梁振動実験における周波数伝達関数の推定

抄録

This paper describes the results of a simple beam vibration test and the corresponding numerical simulation. We have been developing a structural sensing method using the wireless sensor network and the accurate small vibrator. This vibrator is able to excite very accurate harmonic vibrations to a structure with a known force function. In this study, vibration test of a simple beam was conducted and the frequency transfer function was estimated with the use of ARX model. The obtained frequency transfer function is compared with a frequency transfer function calculated by a FEM analysis. The results show that the frequency transfer function measured by the structural sensing method is successfully simulated by the FEM analysis.