A1 Journal article (refereed), original research

Vibration analysis of paper machine's asymmetric tube roll supported by spherical roller bearings


Open Access publication

Publication Details
Authors: Heikkinen Janne E., Ghalamchi Behnam, Viitala Raine, Sopanen Jussi, Juhanko Jari, Mikkola Aki, Kuosmanen Petri
Publisher: Elsevier
Publication year: 2018
Language: English
Related Journal or Series Information: Mechanical Systems and Signal Processing
Volume number: 104
Start page: 688
End page: 704
Number of pages: 17
ISSN: 0888-3270
eISSN: 1096-1216
JUFO-Level of this publication: 2
Open Access: Open Access publication

Abstract

This
paper presents a simulation method that is used to study subcritical
vibrations of a tube roll in a paper machine. This study employs
asymmetric 3D beam elements based on the Timoshenko beam theory. An
asymmetric beam model accounts for varying stiffness and mass
distributions. Additionally, a detailed rolling element bearing model
defines the excitations arising from the set of spherical roller
bearings at both ends of the rotor. The results obtained from the
simulation model are compared against the results from the measurements.
The results indicate that the waviness of the bearing rolling surfaces
contributes significantly to the subcritical vibrations while the
asymmetric properties of the tube roll have only a fractional effect on
the studied vibrations.


Last updated on 2019-13-03 at 12:00