지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.6
- 수록면
- 313 - 319 (7page)
- DOI
- 10.5050/KSNVE.2018.28.3.313
이용수
초록· 키워드
오류제보하기
In this study, we develop the input estimation technique using the genetic algorithm to solve the inverse problem. We made the testbed consisting of beam structure with a laser sensor and accelerometer to validate our proposed input estimation technique. To solve the inverse problem, we need the exact parameter of the beam structure. To this end, the frequency response function was measured and the system identification was carried out. In the experiment, the beam structure was excited with specific disturbance. At the same time, the top displacement and acceleration of the beam structure were measured. The result of input estimation using the displacement is similar to the base input. However, if we use the acceleration data to estimate the input, the result cannot predict the low frequency vibration. In vibration system, the cause of the vibration is not low frequency but mainly high frequency disturbance. Therefore, we compared the estimated input from acceleration with base input filtered by low pass filter and both results were similar. From this result, it is confirmed that the input estimation using the acceleration can be applied to obtain disturbance information.
목차
ABSTRACT
1. 서론
2. 실험 장치 구성
3. 유전자 알고리듬을 이용한 Input Estimation
4. 결론
References
참고문헌 (11)
참고문헌 신청
Genaro, G. and Rade, D. A., 1998, Input Force Identification in the Time Domain, Proceedings of the 16th International Modal Analysis Conference, 6pages.
Liu, J. J., Ma, C. K., Kung, I. C. and Lin, D. C., 2000, Input Force Estimation of Cantilever Plate by Using a System Identification Technique, Comput. Mehods Appl. Mech. Eng., Vol. 190, pp. 1309~1322.
Ma, C. K., Chang, J. M. and Lin, D. C., 2003, Input Forces Estimation of Beam Structures by an Inverse Method, Journal of Sound and Vibration, Vol. 259, No. 2, pp. 387~407.
Ma, C. K. and Ho, C. C., 2004, An Inverse Method for the Estimation of Input Forces Acting on Non-linear Structural Systems, Journal of Sound and Vibration, Vol. 275, pp. 953~971.
Seo, J. S. and Elliott, S. J., 2002, Input Signal Reconstruction for Nonlinear Systems Using Iterative Learning Procedures, Proceedings of the KSNVE Annual Spring Conference, pp. 855~861.
Liu, J. J., Ma, C. K., Kung, I. C. and Lin, D. C., 2000, Input Force Estimation of Cantilever Plate by Using a System Identification Technique, Comput. Mehods Appl. Mech. Eng., Vol. 190, pp. 1309~1322.
Ma, C. K., Chang, J. M. and Lin, D. C., 2003, Input Forces Estimation of Beam Structures by an Inverse Method, Journal of Sound and Vibration, Vol. 259, No. 2, pp. 387~407.
Ma, C. K. and Ho, C. C., 2004, An Inverse Method for the Estimation of Input Forces Acting on Non-linear Structural Systems, Journal of Sound and Vibration, Vol. 275, pp. 953~971.
Seo, J. S. and Elliott, S. J., 2002, Input Signal Reconstruction for Nonlinear Systems Using Iterative Learning Procedures, Proceedings of the KSNVE Annual Spring Conference, pp. 855~861.
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UCI(KEPA) : I410-ECN-0101-2018-424-002215060