In this study, MR(Magneto-Rheological) Grease fluid was developed for compensating the settling phenomena of MR(Magneto-Rheological) fluid which is widely used in semi-active control system. In order to characterize the settling phenomena of the MRG fluid, the experimental comparison was conducted. The control performance assessment of the MRG fluid was also evaluated. As a result, it was verified that the MRG fluid have the sufficient performances to use as a material for semi-active control device.

• 허광희(건양대학교 해외건설플랜트학과 교수, 공학박사) | Heo, Gang Hee
• 전승곤(충남대학교 토목공학과, 박사과정) | Jeon, Seung Gon 교신저자
• 이진옥(충남대학교 토목공학과 교수, 공학박사) | Lee, Chin Ok
• 서상구(충남도립대학교 건설정보과 교수, 공학박사) | Seo, Sang Gu