동흡진기가 부착된 기저가진 2자유도 비선형 진동계의 변위전달률
Displacement Transmissibility of a Base Excited Two-DOF Nonlinear Vibration System Attached a Dynamic Vibration Absorber
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In this paper, the effect of a dynamic vibration absorber to suppress the response of a base excitation vibration system composed of a cubic nonlinear spring and a friction damper is investigated. And the dynamic absorber consists of a linear spring and a viscose damper. The mathematical models of these systems are governed by second order nonlinear ordinary differential equations. The response characteristics of the system are analyzed using the slowly changing phase and amplitude(SCPA) method, which is one of the averaging methods. As a function of the friction force ratio, It was obtained the locking frequency at which the relative motion starts was obtained, and the regions where the locking occurred. The displacement transmissibility was investigated according to the change of the design parameter, and the optimal design parameters could be found to minimize the displacement transmissibility.
Abstract
In this paper, the effect of a dynamic vibration absorber to suppress the response of a base excitation vibration system composed of a cubic nonlinear spring and a friction damper is investigated. And the dynamic absorber consists of a linear spring and a viscose damper. The mathematical models of these systems are governed by second order nonlinear ordinary differential equations. The response characteristics of the system are analyzed using the slowly changing phase and amplitude(SCPA) method, which is one of the averaging methods. As a function of the friction force ratio, It was obtained the locking frequency at which the relative motion starts was obtained, and the regions where the locking occurred. The displacement transmissibility was investigated according to the change of the design parameter, and the optimal design parameters could be found to minimize the displacement transmissibility.
참고문헌 (13)
- J. E. Ruzicka, "Influence of Damping in Vibration Isolation, The Shock and Vibration Monograph Series SVM-7" (1971)
- R. A. Ibrahim, "Recent advances in nonlinear passive vibration isolators", Journal of Sound and Vibration, 314, pp.371~452 (2008)
- J. H. Lee, "Passive Vibration Isolators", Journal of KSNVE, 27(3), pp.6~9 (2017)
- 신윤호, "와이어 메쉬 재질을 이용한 하이브리드 마운트용 수동 진동 절연 요소 설계", 한국소음진동공학회논문집, 30(1), pp.75~81 (2020), 한국소음진동공학회[DOI]
- 민경원, "지진하중을 받는 구조물의 성능에 기초한 마찰감쇠기 설계", 한국지진공학회논문집, 7(6), pp.17~24 (2003), 한국지진공학회
- D. J. Hur, "Analysis of an Isolation System with Vertical Spring-viscous Dampers in Horizontal and Vertical Ground Motion", Applied Science, 10, pp.1141~ (2020)
- B. G. Korenev, "Dynamic Vibration Absorbers" (1993), John Wiley and Sons
- S. Pani, "Review of an Effective Dynamic Vibration Absorber for a Simply Supported Beam and Parametric Optimization to Reduce Vibration Amplitude", Int. Journal of Engineering Research and Application, 7(7), pp.49~77 (2017)
- L. Marino, "Displacement Transmissibility of a Coulomb Friction Oscillator subject to Jointed Base-wall Motion", Nonlinear Dynamics, 98, pp.2595~2612 (2019)
- B. Ravindra, "Hard Duffing-type Vibration Isolator with Combined Coulomb and Viscous Damping", International Journal of Non-Linear Mechanics, 28(4), pp.427~440 (1993)
- 홍성철, "마찰감쇠를 갖는 기저가진 진동계의 변위전달율", 한국기계기술학회지, 23(5), pp.760~766 (2021), 한국기계기술학회[DOI]
- P. Hagedorn, "Non-Linear Oscillations" (1981)
- C. H. Pak, "Nonlinear Normal Mode Dynamics for Two Degree-of-Freedom systems" (1994), Inha U. press