지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.28 No.4
- 발행연도
- 2021.10
- 수록면
- 455 - 468 (14page)
이용수
초록· 키워드
오류제보하기
Excessive vibration may cause premature fatigue failure on structural components if it is not properly controlled. One effective way to attenuate vibration is to attach a tuned vibration absorber to the main structural component. Passive tuned vibration absorbers are mainly effective to attenuate vibration at a specific range of frequencies and thus they become infective under varied environmental conditions which can significantly alter the tuning frequencies. The present study aims at development of a wide-bandwidth and light-weight adaptive tuned vibration absorber (ATVA) featuring a magnetorheological elastomer (MRE) which is tuned to absorb the vibrations of a flexible beam. The accelerance transfer function is derived for both beam with and without ATVA. The effectiveness of the ATVA to control vibration of the flexible beam caused by external excitation under wide range of frequencies is demonstrated. The proposed ATVA consists of C-Shape frame with winding coils, two isometric MRE specimens with 40% volume fraction, and active mass. An empirical model for the MRE has been developed through an experimental identification method in order to predict the MRE's elastic modulus under various levels of excitation frequencies and applied magnetic fields. Using MRE models and magneto-circuit analysis, the frequency bandwidth of the ATVA is analytically obtained. The analytical model is then used to develop a multidisciplinary design optimization formulation to minimize the mass and maximize the frequency bandwidth of an ATVA featuring MRE given several geometrical and physical constraints. Finally, a tuning algorithm has been presented to determine the required applied magnetic flux density to the MRE layers based on the identified phase difference between the absolute acceleration of the host and relative acceleration of the host and ATVA's resonator.
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등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Raju Ahamed / 2018 / A state of art on magneto-rheological materials and their potential applications / Journal of Intelligent Material Systems and Structures 29(10):2051~2095
Hua-xia Deng / 2008 / Application of magnetorheological elastomer to vibration absorber / Communications in Nonlinear Science and Numerical Simulation 13(9):1938~1947
Hua-xia Deng / 2006 / Development of an adaptive tuned vibration absorber with magnetorheological elastomer / Smart Materials and Structures 15(5):N111~N116
Pu Gao / 2019 / Vibration reduction performance parameters matching for adaptive tunable vibration absorber / Journal of Intelligent Material Systems and Structures 30(2):198~212
Ginder, J. M. / 2001 / Magnetorheological elastomers in tunable vibration absorbers / Smart Structures and Materials 2001: Damping and Isolation 4331:103~110
Hua-xia Deng / 2008 / Application of magnetorheological elastomer to vibration absorber / Communications in Nonlinear Science and Numerical Simulation 13(9):1938~1947
Hua-xia Deng / 2006 / Development of an adaptive tuned vibration absorber with magnetorheological elastomer / Smart Materials and Structures 15(5):N111~N116
Pu Gao / 2019 / Vibration reduction performance parameters matching for adaptive tunable vibration absorber / Journal of Intelligent Material Systems and Structures 30(2):198~212
Ginder, J. M. / 2001 / Magnetorheological elastomers in tunable vibration absorbers / Smart Structures and Materials 2001: Damping and Isolation 4331:103~110
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