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This study analyzes how the damping characteristics of anisotropic magnetorheological elastomers (MREs) change according to magnetic flux density, the volume fraction of carbonyl iron powder (CIP), and pre-stress. MREs are intelligent materials whose mechanical properties change depending on the magnetic field, and while research on stiffness changes has been actively conducted, analysis of damping characteristics is relatively insufficient. Consequently, the damping characteristics of MREs showed nonlinear responses depending on the interaction among magnetic flux density, CIP volume fraction, and pre-stress, confirming that damping performance can be utilized as a controllable material parameter. These results suggest the possibility that, in the design of MRE-based vibration control systems, not only stiffness but also damping characteristics can be actively controlled, and they provide basic data for the future development of high-performance vibration reduction technologies.
목차
Abstract 1. 서론 2. 자기유변고무 감쇠비 측정 2.1 실험 방법 2.2 감쇠비 계산 3. Pre-stress에 따른 자기유변고무의 감쇠비 3.1 전달함수 측정 결과 3.2 토크렌치 이용 체결력 측정에 따른 Prestress전단계수 변화 4. 결론 References