Balbahadur, A. C.Kirk, R. Gordon2017-09-182017-09-182004-01-01A. C. Balbahadur and R. G. Kirk, “Part I—Theoretical Model for a Synchronous Thermal Instability Operating in Overhung Rotors,” International Journal of Rotating Machinery, vol. 10, no. 6, pp. 469-475, 2004. doi:10.1155/S1023621X04000466http://hdl.handle.net/10919/79092Atheoretical model has been developed for a synchronousthermal instability that is caused by differential viscousshearing in bearings of overhung rotors. This model employsan unbalance threshold criterion for instability insteadof utilizing a traditional frequency-domain stability analysis.The current model will be used to investigate several casestudies for both plain and tilting pad journal bearing rotorsin the second part of this article.application/pdfenCreative Commons Attribution 4.0 InternationalArticle - Refereed2017-09-18Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.https://doi.org/10.1155/S1023621X04000466