DOI QR코드

DOI QR Code

구조물의 진동장 예측 최적센서배치를 위한 유전자 알고리듬 적합함수의 선정

정병규;배경원;정의봉
Jung, Byung-Kyoo;Bae, Kyeong-Won;Jeong, Weui-Bong

  • 투고 : 2015.08.04
  • 심사 : 2015.10.07
  • 발행 : 2015.10.20

초록

It is often necessary to predict the vibration patterns of the structures from the signals of finite number of vibration sensors. This study presents the optimal placement of vibration sensors by applying the genetic algorithm and the modal expansion method. The modal expansion method is used to estimate the vibration response of the whole structure. The genetic algorithm is used to estimate the optimal placement of vibration sensors. Optimal sensor placement can be obtained so that the fitness function is minimized in the genetic algorithm. This paper discusses the comparison of the performances of two types of fitness functions, modal assurance criteria(MAC) and condition number( CN). As a result, the estimation using MAC shows better performance than using CN.

키워드

구조 기인 소음;모드확장법;유전자 알고리듬;모드상관계수;조건수;모드 기여도

참고문헌

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