Title :
Numerical instability of magnetic damping problem of elastic plate
Author :
Niho, Tomoya ; Horie, Tomoyoshi ; Tanaka, Yoshikazu
Author_Institution :
Dept. of Mech. Syst. Eng., Kyushu Inst. of Technol., Fukuoka, Japan
fDate :
7/1/2000 12:00:00 AM
Abstract :
Numerical instability occurs in an analysis of a vibration with magnetic damping, or an electromagnetic and structural coupled problem. In this paper, the numerical instability of the coupled analysis is examined by the finite element in time. It is confirmed that the simultaneous method is unconditionally stable even if the magnetic field and the time increment are large. For the staggered method, we obtain the conditions where the numerical instability occurs
Keywords :
damping; finite element analysis; magnetomechanical effects; numerical stability; vibrations; coupled electromagnetic-structural analysis; elastic plate; finite element method; magnetic damping; numerical instability; simultaneous method; staggered method; time integration; vibration; Damping; Eddy currents; Electromagnetic analysis; Electromagnetic coupling; Equations; Finite element methods; Magnetic analysis; Magnetic fields; Magnetic levitation; Magnetoelasticity;
Journal_Title :
Magnetics, IEEE Transactions on
