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부틸 고무 기반 자기 유동 엘라스토머의 전단계수 변화율에 대한 실험적 평가
윤지현(Ji-Hyun Yoon),정운창(Un-Chang Jeong),김진수(Jin-Soo Kim),이정윤(Jung-Youn Lee),오재응(Jae-Eung Oh) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
The Magneto-rheological Elastomer(MRE) is a material which shows reversible and various modulus in magnetic field. Comparing to conventional rubber vibration isolator, MREs are able to absorb broader frequency range of vibration. These characteristics phenomena result from the orientation of magnetic particle (i.e., chain-like formation) in rubber matrix. In this study, butyl rubber was used as a matrix in order to manufacture MREs. Magnetic reactive powder (MRP), having rapid magnetic reaction, was selected as a magnetic particle to give magnetic field reactive modulus. The mechanical properties of manufactured MREs were measure without the application of magnetic field. The analysis of MR effect was carried out by FFT analyzer with various induced currents. As the addition of MRP and magnetic flux increased, increment of MR effect was observed.