Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2003.10a
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- Pages.359-362
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- 2003
Study on Mechanism of Mechanical Damping System Based on The Colloidal Suspension of Nano-Porous Particles
나노 다공성 입자의 콜로이드 서스펜션을 이용한 기계적 감쇠기구에 대한 연구
- W.J, Song (Dept. of Aerospace Engineering, Pusan National University) ;
- Kim, J. (Dept. of Aerospace Engineering, Pusan National University) ;
- B.Y. Moon (Dept. of Aerospace Engineering, Pusan National University) ;
- B.S. Kang (Dept. of Aerospace Engineering, Pusan National University)
- Published : 2003.10.01
Abstract
Damping systems have been widely used to various industrial structures and are mainly hydraulic and pneumatic devices nowadays. In this work, a novel damping system based on the colloidal suspension in the field of nanotechnology is investigated. The colloidal suspension consists of Iyophobic working fluid and hydrophobic-coated porous particle. The mechanism of mechanical energy dissipation in damping system based on the colloidal suspension with nano-porous particles is different from that of the existing hydraulic damping system. The absorbed energy of the damping system using colloidal suspension can be calculated through the mechanical equilibrium condition by the superficial tensions of liquid-gas Interface in the hydrophobic surface in nano-porous particles. The results from an analytic approach have a reasonable agreement with experimental results.