Modelling Fifth Octave Rolling Mill Chatter

Jones, Reenee (2003). Modelling Fifth Octave Rolling Mill Chatter Honours Thesis, School of Engineering, The University of Queensland.

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Author Jones, Reenee
Thesis Title Modelling Fifth Octave Rolling Mill Chatter
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2003
Thesis type Honours Thesis
Supervisor Paul Meehan
Total pages 51
Language eng
Subjects 0913 Mechanical Engineering
Formatted abstract
The presence of the ‘chatter’ phenomenon has been around in the rolling industry for many years. Even with today’s technological edge, rolling mill chatter has not been eliminated. Fifth octave chatter is a common type and is found in high-speed rolling mills. This ongoing issue is now more prominent than ever with the industry calling for an increase in production rates while still producing a high quality surface for flat metal manufacturing. The purpose of this thesis is to establish the best model for fifth octave chatter from four published models and three developed in this thesis.

This thesis has developed three models for fifth octave chatter in a four high rolling mill stand. Finite element and mathematical methods were used to verify the modal shape of these models in the frequency range where fifth octave chatter is found to occur. A criteria was selected from the characteristics of fifth octave chatter to compare the models produced by Roberts, Gallenstein, Yarita and Nessler and Cory to those developed in this thesis.

Based on this comparison a model was chosen that best represents fifth octave chatter. Further development of the models could lead to the reduction and final elimination of fifth octave chatter.
Keyword Fifth Octave Modelling

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
Citation counts: Google Scholar Search Google Scholar
Created: Fri, 06 Feb 2015, 13:13:23 EST by Asma Asrar Qureshi on behalf of Scholarly Communication and Digitisation Service