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research-article

Experimental fitting of rotor models by using a special three-node beam element

[+] Author and Article Information
Mate Antali

Department of Applied Mechanics Budapest University of Technology and Economics, Budapest, 1111 Hungary
antali@mm.bme.hu

Denes Takacs

Department of Applied Mechanics Budapest University of Technology and Economics, Budapest, 1111 Hungary
takacs@mm.bme.hu

Gabor Stepan

Department of Applied Mechanics Budapest University of Technology and Economics, Budapest, 1111 Hungary
stepan@mm.bme.hu

1Corresponding author.

ASME doi:10.1115/1.4038148 History: Received June 19, 2017; Revised August 23, 2017

Abstract

In this paper, a special type of beam element is developed with three nodes and with only translational degrees of freedom at each node. This element can be used effectively to build low degree-of-freedom models of rotors. The initial model from the Bernoulli theory is fitted to experimental results by nonlinear optimization. This way, we can avoid the complex modelling of contact problems between the parts of squirrel cage rotors. The procedure is demonstrated on the modelling of a machine tool spindle.

Copyright (c) 2017 by ASME
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