Abstract
Colloidal damper is composed of cylinder-piston mechanism contained colloidal liquid which is composed of hydrophobic silica gel and water. The silica gel has many small pores in it and the water comes in and out the pore by the variation of pressure. The surface extension forces of the water in the pore are different at the process of coming in and out. This difference makes dissipative energy as the damper. In this paper behavior of water which is coming in and out the pore is stimulated by using the molecular dynamics and the evaluated energy by the molecular dynamics is quantitatively compared with the energy experimentally obtained by colloidal damper and the both results are good agreement. That is, clastered water used by molecular dynamics is entered into and come out 7-10 nm dia. pore coated by hydrophobic molecular and both contact angle are measured and the dissipated energy is evaluated. Then this energy is compared with the experimental result which is obtained by colloidal damper. Then these results have good agreement.
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More From: The Proceedings of the Dynamics & Design Conference
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