Vol. 1, No. 3, 2006

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ISSN: 1559-3959
An off-resonance synchronous vibration based method for rotor system damage detection

Huageng Luo, Hector Rodriguez and Darren Hallman

Vol. 1 (2006), No. 3, 407–430
Abstract

This paper presents a methodology for detecting rotor imbalances, such as mass imbalance and crack-induced imbalance, using shaft synchronous vibrations. A vibration detection algorithm is derived based on the first order synchronous vibration response. A detection system was integrated by using state-of-the-art commercial analysis equipment. A laboratory rotor test rig with controlled mass imbalances was used to verify the integrated system. The system was then deployed to an engine subassembly test setup. Four specimens were used in the subassembly test and the test results are reported in the final section.

Keywords
off-resonance, synchronous vibration, damage detection, rotor system, mass imbalance, crack induced imbalance
Milestones
Received: 29 September 2005
Revised: 19 December 2005
Accepted: 20 December 2005
Published: 1 July 2006
Authors
Huageng Luo
GE Global Research Center
K1 3A 30B
One Research Circle
Niskayuna, NY 12309
United States
Hector Rodriguez
Infotech Aerospace Services, Inc.
Structures Department
699 Industrial Ave.
Isabela, PR 00662
United States
Darren Hallman
GE Global Research Center
K1 3A 30B
One Research Circle
Niskayuna, NY 12309
United States