Performance Evaluation of Small Dampers Using SMG Fluid

SMG 유체를 이용한 소형댐퍼의 성능평가

Heo, Gwang Hee;Jeon, Seung Gon;Seo, Sang Gu;Kim, Dae Hyeok

  • Received : 2019.02.22
  • Accepted : 2019.06.12
  • Published : 2019.07.01


In this study, SMG(Smart Material with Grease) was developed, which was improved the precipitation minute particle in grease during long term standstill. Also, small-sized cylinder damper equipped with an electromagnet in a piston was developed for using a performance evaluation of the damper with SMG and the dynamic load test, and damping force using Power model and Bingham model was derived in order to compare to the result of that of the damper. The data obtained from the dynamic load test were analyzed and plotted, and then a dynamic range was calculated to evaluate the usability of the damper with SMG. The performance of the damper with SMG was compared to the damping forse derived from the Power and Bingham model. The result of this evaluation shown that the usability of SMG damper was demonstrated by this test as a semi-active controlling equipment of small-sized damper.


Small-sized damper;MR damper;Dynamic modeling;Power model;Bingham model;Dynamic range


Supported by : 한국연구재단