Comparison between continuous and discrete frequency domain solution methods for structural steady state calculations with the finite element method

S. Rainer O. Bíró; A. Stermecki

doi:10.1108/03321640910959116

Login

Welcome:
Guest

Search for:

Browse:

Product Information:

Resources:

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

ISSN: 0332-1649

Online from: 1982

Subject Area: Electrical & Electronic Engineering

Content: Latest Issue | Latest Issue RSS | Previous Issues

Options: To add Favourites and Table of Contents Alerts please take a Emerald profile

Comparison between continuous and discrete frequency domain solution methods for structural steady state calculations with the finite element method

Document Information:
Title:	Comparison between continuous and discrete frequency domain solution methods for structural steady state calculations with the finite element method
Author(s):	S. Rainer O. Bíró, (Institute for Fundamentals and Theory in Electrical Engineering (IGTE), Graz University of Technology, Graz, Austria), A. Stermecki, (Christian Doppler Laboratory for Multiphysical Simulation, Analysis and Design of Electrical Machines, Graz, Austria)
Citation:	S. Rainer O. Bíró, A. Stermecki, (2009) "Comparison between continuous and discrete frequency domain solution methods for structural steady state calculations with the finite element method", COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 28 Iss: 4, pp.1068 - 1080
Keywords:	Electrical machines, Finite elements, Frequency domain, Steady state, Vibrations
Article type:	Research paper
DOI:	10.1108/03321640910959116 (Permanent URL)
Publisher:	Emerald Group Publishing Limited
Acknowledgements:	This work has been supported by the Christian Doppler Research Association (CDG), the ELIN EBG Motoren Gmbh and the Traktionssysteme Austria GmbH.
Abstract:	Purpose – Different solution methods, using finite element method in continuous and discrete frequency domain, are compared with each other in order to find the most appropriate method for the estimation of steady state vibrations in linear structural and mechanical problems. The purpose of this paper is to describe the procedures. Design/methodology/approach – The continuous and some relevant discrete frequency domain solution methods are compared by an analytical investigation as well as by the numerical examination of a simple model. Finally, results for a more relevant example using finite elements are presented. Findings – It is shown that the steady state computation using the continuous frequency domain system description delivers the exact solution for a given system. Originality/value – Based on the presented results, the use of continuous frequency domain system description is recommendable in most cases.