Title :
Direct steady-state computation of mechanical vibrations in electrical machines
Author :
Rainer, Siegfried ; Bíró, Oszkár ; Krischan, Klaus ; Stermecki, Andrej ; Philipp, Leopold
Author_Institution :
Christian Doppler Lab. for Multiphysical Simulation, Graz Univ. of Technol., Graz
Abstract :
A method for steady-state calculation of mechanical or structural systems formulated by the finite element method (FEM) is presented. The procedure introduced is used to calculate the mechanical vibrations caused by the electromagnetic excitation of induction motors. Compared to other approaches, this method enables the free choice of the time discretisation algorithm. The method is presented for second order systems and demonstrated by a numerical example.
Keywords :
electric machines; finite element analysis; induction motors; vibrations; direct steady-state computation; electrical machines; electromagnetic excitation; finite element method; induction motors; mechanical vibrations; second order systems; time discretisation algorithm; Acoustic noise; Analytical models; Differential equations; Finite element methods; Paper technology; Stator cores; Steady-state; Time domain analysis; Transient analysis; Vibrations;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4800052
