Damping characteristics of a magnetic fluid tuned liquid column damper under static magnetic fields

Issue title: Proceedings from the 16th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2013)

Guest editors: Xavier Maldague and Toshiyuki Takagi

Article type: Research Article

Authors: Oyamada, Toshiyuki^a | Masuda, Hideaki^a | Ikari, Kazuki^a | Sawada, Tatsuo^{a; *}

Affiliations: [a] Department of Mechanical Engineering, Keio University, Kohoku-ku, Yokohama, Japan | Université Laval, Canada | Tohoku University, Japan

Correspondence: [*] Corresponding author: Tatsuo Sawada, Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan. E-mail: [email protected]

Abstract: Magnetic fluid tuned liquid column damper (MF-TLCD) is a new semiactive damper. This device can exhibit high damping effect by tuning its natural frequency to the excitation frequency. In this study, the vibration characteristics of a magnetic fluid under a static magnetic field were investigated by linear analysis and experiment with single-degree-of-freedom oscillation. Moreover, MF-TLCD was installed within a structure and oscillated in double-degrees-of-freedom. It was confirmed that MF-TLCD could achieve high performance compared with the conventional TLCD by controlling the magnetic field.

Keywords: Magnetic fluid, tuned liquid column damper, natural frequency, vibration control

DOI: 10.3233/JAE-141890

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 45, no. 1-4, pp. 659-665, 2014