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Machine protection system for rotating equipment and method

United States Patent

January 7, 2003
View the Complete Patent at the US Patent & Trademark Office
A machine protection system and method for rotating equipment introduces new alarming features and makes use of full proximity probe sensor information, including amplitude and phase. Baseline vibration amplitude and phase data is estimated and tracked according to operating modes of the rotating equipment. Baseline vibration and phase data can be determined using a rolling average and variance and stored in a unit circle or tracked using short term average and long term average baselines. The sensed vibration amplitude and phase is compared with the baseline vibration amplitude and phase data. Operation of the rotating equipment can be controlled based on the vibration amplitude and phase.
Lakshminarasimha; Arkalgud N. (Marietta, GA), Rucigay; Richard J. (Marietta, GA), Ozgur; Dincer (Kennesaw, GA)
General Electric Company (Schenectady, NY)
09/ 488,033
January 20, 2000
This invention was made with Government support under Contract No. DE-FC21-95MC-31176 awarded by the Department of Energy. The Government has certain rights in this invention.