|
Title |
Identify Modal Parameter by The Output Response of Structure Using Smart Sensor System
|
|
Keywords |
EOT ; ERA ; Modal parameter ; NExT ; Smart sensor ; 고유계구현기법 ; 자연가진기법 ; 모달 인자 ; 최적계측위치 ; 스마트 센서 |
|
Abstract |
In this study, the research was carried out on how to identify the modal parameter by acquiring the output response of the structure only through the smart sensor system. The objective of this research is to verify the performance and the on-site adaptability of the smart sensor system that have been actively researched as the advanced measuring system so far. Smart Sensor System was developed so that the real-time dynamic measurement can be performed by means of MEMS-type accelerated sensor, 8 bit CPU, wireless MODEM. In the modal parameter identification test, random excitation was added to the cantilever beam, and then the response of the structure was obtained using the smart sensor system and the wire measurement system respectively. In analyzing the data, modal parameter was identified using NExT & ERA algorithm. Furthermore, the optimal measurement location was selected through EOT algorithm in order to obtain the qualified output response. Result of the test, it was possible to verify the on-site applicability of the smart sensor.
|