An effect of vertical sloshing on a fluid pressure and a surface displacement in a tuned magnetic fluid damper

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Ohno, Ken-ichi^a | Sawada, Tatsuo^{a; *}

Affiliations: [a] Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Japan

Correspondence: [*] Corresponding author: Tatsuo Sawada, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan. Tel.: +84 45 566 1504; Fax: +84 45 566 1495; E-mail: [email protected]

Abstract: A tuned fluid damper (TLD) is a dynamic absorber which uses hydrodynamic force of sloshing in a container to dampen oscillations of structures. The TLD using a magnetic fluid as working fluid is called a tuned magnetic fluid damper (TMFD). Sloshing of the magnetic fluid is controlled by the magnetic field on the TMFD. It is important to get the state of the sloshing, thus the change of the fluid level and the fluid pressure of the magnetic fluid is studied in several magnetic fields. The change of them is affected by the resonant sloshing of vertical component and not by the resonance of the main (horizontal) sloshing.

Keywords: Magnetic fluid, sloshing, magnetic field, pressure, tuned magnetic fluid damper

DOI: 10.3233/JAE-2010-1268

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1411-1416, 2010