Application of Eddy Current Damping Effect to Design a Novel Magnetic Damper

DOI

10.2991/ifeea-15.2016.71How to use a DOI?

Keywords

Eddy current damper, FEM, damping characteristics

Abstract

With advantages of no mechanical contact, vacuum compatibility, oil-free, and high reliability, an eddy current damper (ECD) is designed for use in space. To obtain perfect damping characteristics, a conductor as an outer copper tube and two stationary plates, and an array of axially magnetized ring-shaped permanent magnets separated by iron pole pieces as a mover are used in the proposed ECD. Among the outer conductor tube, a steel tube is used to prevent the electromagnetic leakage. Since the generated eddy currents create are pulsive force that is proportional to the velocity of the conductor, the moving magnet and conductor behave like a viscous damper. An accurate analytical model based on the electromagnetic theory for this type of eddy current damper is proposed, and a finite-element method (FEM) is carried out to predict the magnetic field and current density.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Denghong Xiao
AU  - Xiaohong Zhou
AU  - Yong Gao
AU  - Dongliang Quan
AU  - Tian He
PY  - 2016/01
DA  - 2016/01
TI  - Application of Eddy Current Damping Effect to Design a Novel Magnetic Damper
BT  - Proceedings of the 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)
PB  - Atlantis Press
SP  - 335
EP  - 339
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeea-15.2016.71
DO  - 10.2991/ifeea-15.2016.71
ID  - Xiao2016/01
ER  -