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Digital Library of the
European Council for Modelling and Simulation |
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Title: |
Nonlinear Model For Rotating Machine Rotor Under Large Deformation |
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Authors: |
Amin Almasi |
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Published in:
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(2009).ECMS
2009 Proceedings edited by J. Otamendi, A. Bargiela, J. L. Montes, L. M. Doncel
Pedrera. European Council for Modeling and
Simulation. doi:10.7148/2009 ISBN: 978-0-9553018-8-9 23rd
European Conference on Modelling and Simulation, Madrid, June
9-12, 2009 |
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Citation
format: |
Almasi, A. (2009). Nonlinear Model For
Rotating Machine Rotor Under Large Deformation. ECMS 2009 Proceedings edited
by J. Otamendi, A. Bargiela,
J. L. Montes, L. M. Doncel Pedrera (pp. 374-377). European Council for
Modeling and Simulation. doi:10.7148/2009-0373-0377 |
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DOI: |
http://dx.doi.org/10.7148/2009-0373-0377 |
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Abstract: |
Reliability assessment and risk
analysis of machine rotors in various overload and malfunction situations
present challenge to engineers and operators. In this paper a new analytical
method for evaluation of rotor under large deformation is addressed. Model is
presented in general form to include also composite rotors. Presented
simulation procedure is based on variational work
method and has capability to account for geometric nonlinearity, large
displacement, nonlinear support effect and rotor contacting other machine
components. New shape functions are presented which capable to predict
accurate nonlinear profile of rotor. The closed form solutions for various
operating and malfunction situations are expressed. Analytical simulation
results are discussed. |
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