Characteristics of the forced vibration with magnetic damping

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Tanaka, Yoshikazu^{a; *} | Horie, Tomoyoshi^a

Affiliations: [a] Department of Mechanical System Engineering, Kyushu Institute of Technology 680-4 Kawazu, Iizuka, Fukuoka 820-8502, Japan

Correspondence: [*] Corresponding author: Yoshikazu Tanaka, Department of Mechanical System Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, Fukuoka 820-8502, Japan; Tel.: +81 948 29 7757; Fax: +81 948 29 7751; E-mail: yoshi@solid.mse.kyutech.ac.jp

Abstract: It is required to clarify the characteristics of forced vibration with magnetic damping for an earthquake-resistant design of conductive thin shell structures located in an electromagnetic field. In this paper, the characteristics of forced vibration are examined using finite element tightly coupled analysis and single-degree-of-freedom coupled model. The results show that the change of resonance frequency is different from that of general viscous damping problems for some combinations of material properties and magnetic fields. It is pronounced when the eddy current decay rate is close to the natural period of the structure.

DOI: 10.3233/JAE-2002-487

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 13, no. 1-4, pp. 45-51, 2002