System and method for equipment life estimation
AssigneeGeneral Electric Company
InventorsKai Frank Goebel, Piero Patrone Bonissone, Weizhong Yan, Neil Holger White Eklund, Feng Xue, Hai Qiu
Life of this patent
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Abstract
A method to predict equipment life is disclosed. The method includes making available a set of input parameters, and defining a model of a health of the equipment as a function of the set of input parameters. The method continues with receiving at least one signal representative of a respective one of an actual sensor output relating to an actual operation attribute margin of the equipment, predicting a remaining useful equipment life based upon a sequence of outputs of the model of the health of the equipment, and generating a signal corresponding to the remaining useful equipment life.
Claims22
A method to predict equipment life comprising:
- making available a set of input parameters, wherein the making available comprises making available an operating condition, a degraded abnormal health condition, and a deterioration condition;
- executing a computational model with the set of input parameters to define at least one modeled operation attribute margin;
- comparing the modeled operation attribute margin defined using the set of input parameters absent the degraded abnormal health condition with a corresponding modeled operation attribute margin defined using the set of input parameters comprising the degraded abnormal health condition to develop a normalized operation attribute margin;
- defining a health index based upon the normalized operation attribute margin;
- defining a model of a health of the equipment as a function of the set of input parameters;
- receiving from the model of the health of the equipment at least one signal representative of a respective one of an actual sensor output relating to an actual operation attribute margin of the equipment;
- predicting a remaining useful equipment life based upon a sequence of outputs of the model of the health of the equipment;
- and
- generating a signal corresponding to the remaining useful equipment life.
A prediction system for predicting life of equipment, the system comprising:
- a database comprising a set of input parameters;
- a processor in signal communication with the database;
- a computational model application for executing on the processor, the computational model performing a method, the method comprising:
- executing a computational model application with the set of input parameters to define at least one modeled operation attribute margin wherein the set of input parameters comprise an operating condition, a degraded abnormal health condition, and a deterioration condition;
- comparing the modeled operation attribute margin defined using the set of input parameters absent the degraded abnormal health condition with a corresponding modeled operation attribute margin defined using the set of input parameters comprising the degraded abnormal health condition to develop a normalized operation attribute;
- defining a health index based upon the normalized operation attribute margin;
- defining a model of a health of the equipment as a function of the set of input parameters;
- receiving from the model of the health of the equipment at least one signal representative of a respective one of an actual sensor output relating to an actual operation attribute margin of the equipment;
- predicting a remaining useful equipment life based upon a sequence of outputs of the model of the health of the equipment;
- and generating a signal corresponding to the remaining useful equipment life.
Dependencies are inferred from the claim text.