Closure to A Review of the Rotordynamic Thermally Induced Synchronous Instability (Morton) Effect?

[+] Author and Article Information
Xiaomeng Tong

Member of ASME, Department of Mechanical Engineering, Texas A&M University, College Station, TX 77840

Alan Palazzolo

Professor, Department of Mechanical Engineering, Texas A&M University, College Station, TX 77840

Junho Suh

Member of ASME, Department of Mechanical Engineering, Hankyong National University, South Korea

1Corresponding author.

ASME doi:10.1115/1.4037364 History: Received May 18, 2017; Revised May 27, 2017


The authors express their gratitude to Professor Keogh for contributing his keen insights and perspectives, and illuminating analysis on the Morton effect (ME), and on general thermally induced, near synchronous, rotordynamic instability problems. Keogh and Morton's [1,2] landmark papers on the theoretical analysis of the ME launched an evolution of the understanding of the ME, which was stimulated by actual industrial experience and improved theoretical models. These models were developed to more accurately predict the ME for design and troubleshooting. This is a timely accomplishment since as recognized by Professor Keogh modern rotordynamic systems continually push the boundaries in complexity, speed, loads, performance, efficiency and structural lightness, which amplifies higher order vibrational effects that disrupt machinery operation.

Copyright (c) 2017 by ASME
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