摘要:
Method (1) for assessing health conditions of industrial equipment (S), said equipment having one or more determined failure modes (F 1 , ..., F N ), each of said failure modes having one or more determined failure causes (FC D1 , ..., FC DK ) and/or one or more undetermined failure causes (FC U1 , ..., FC UM ), characterised it comprises: - acquiring (2) input data (D IN ) related to said equipment; - calculating (3) failure mode assessment data (R Fi , RUL Fi , A Fi , RSK Fi , POF Fi ) for each failure mode (F i ) determined for said equipment, wherein the calculation of said failure mode assessment data comprises: - if said failure mode (F i ) has one or more determined failure causes (FC DI , ..., FC DK ): - executing (31) a first calculation procedure (11) to calculate failure cause assessment data (R FCj , RUL FCj , A FCj ) for each failure cause (FC Dj ) determined for said failure mode, said failure cause assessment data being calculated on the basis of said input data (D IN ); - calculating (32) said failure mode assessment data on the basis of the failure cause assessment data (R FCj , RUL FCj , A FCj ) calculated for each failure cause (FC Dj ) determined for said failure mode;
- if said failure mode (F i ) has one or more undetermined failure causes (FC U1 , ..., FC UM ), executing (33) a second calculation procedure (32) to calculate said failure mode assessment data, said failure mode assessment data being calculated on the basis of said input data (D IN );
- calculating (4) a system assessment data (R S , RUL S , As, RSK S , POF S ) for said equipment, said system assessment data being calculated on the basis of said failure mode assessment data (R Fi , RUL Fi , A Fi , RSK Fi , POF Fi ).
摘要:
Systems and methods are provided for task-based health data monitoring relating to aircraft components of aircraft within an aircraft fleet (12). One method includes identifying health data of an aircraft component for potential monitoring based upon a condition indicator provided by a health and usage monitoring system (14), establishing a Review Item for the health data of the aircraft component having an initial data review state of New Data, thereby creating a Review Task, generating images of the Review Item for display and receiving an indication to change the data review state of the Review Item from New Data to Watch Data, receiving new health data relating to the aircraft component from the health and usage monitoring system (14) and automatically resetting the data review state of the Review Item from Watch Data to New Data responsive to the receipt of the new health data, thereby creating a new Review Task.
摘要:
A method includes identifying (906) costs associated with different outcomes of a failure prediction algorithm (300). The algorithm is configured to predict one or more faults with at least one piece of industrial equipment (102a-102c, 302, 602-620). The different outcomes include both successful and unsuccessful predictions by the algorithm. The method also includes identifying (906) a threshold value for the algorithm using the costs, where the threshold value is used by the failure prediction algorithm to identify whether maintenance of the at least one piece of industrial equipment is needed. The method further includes providing (908) the threshold value to the algorithm. The threshold value is selected such that a net positive economic benefit is obtained from use of the threshold value with the failure prediction algorithm. In addition, the method can include generating a signal indicating whether maintenance is needed based on a comparison of an indicator value calculated using the algorithm and the threshold value.
摘要:
A modulated turbine cooling (MTC) control system (180) is provided. The MTC control system (180) includes a processor (202) in communication with a memory (204). The processor (202) is programmed to determine a cooling flow requirement of an engine component (128, 130) for each of a plurality of operating conditions. The processor (202) is further programmed to channel the determined required flow to the engine component (128, 130) during each respective operating condition of the plurality of operating conditions. The processor (202) is also programmed to assess a health of the engine component (128, 130), and modify the determined cooling flow requirement based on the assessed health of the engine component (128, 130). The processor (202) is further programmed to supply the modified cooling flow requirement to the engine component (128, 130) during each subsequent respective operating condition of the plurality of operating conditions.
摘要:
According to an aspect, a method includes configuring a predictive system model (116) with a plurality of component models (204A-N) to correspond with a modeled state of a mechanical system (100). A set of perturbation inputs (222) is applied to one or more of the component models to produce a plurality of prediction results (118). The prediction results are compared to a targeted mode (212) of the mechanical system. A set of configuration parameters (220) of the mechanical system is captured in combination with one or more of the perturbation inputs that most closely results in the prediction results matching the targeted mode of the mechanical system.
摘要:
A method of latency tolerant fault isolation is provided. The method includes receiving, by a maintenance data computer, evidence associated with a test failure. The maintenance data computer accesses metadata to identify a system failure mode associated with the evidence and other potential evidence associated with the system failure mode. The maintenance data computer determines a maximum predicted latency to receive the potential evidence associated with the system failure mode based on the metadata. The method also includes waiting up to the maximum predicted latency to determine whether one or more instances of the potential evidence associated with the system failure mode are received as additional evidence. The maintenance data computer diagnoses the system failure mode as a fault based on the evidence and the additional evidence.
摘要:
Condition-based monitoring functionality using sensors that monitor wind turbine component movement is described. A main shaft flange displacement sensor system can be used to provide signals used to perform fatigue assessment of the wind turbine rotor blades as well as drive train components. Output signals from the main shaft flange displacement sensor system are used to perform fatigue assessment, failure trending, diagnostic analysis, etc.