Integrated model-based reasoning/expert system diagnosis for rotating machinery
May 27, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for aligning an optical system utilizing focal plane image intensity data Method and apparatus for aligning an optical system Method of operating power plants Method of monitoring the operation of a cyclically moving, power generating or power transmitting element and an apparatus for monitoring the operation of such an element Shaft to impeller integrity determination in assembled pumps by remote sensing Expert system for performing diagnostic and redesign operations incorporating multiple levels of simulation detail Plant diagnostic apparatus Machine failure isolation using qualitative physics Patent #: 5187773 InventorsApplicationNo. 964168 filed on 10/21/1992US Classes:700/177, Protective or diagnostic feature73/587, Acoustic emission340/683, Vibration702/33, Mechanical measurement system702/183, Diagnostic analysis706/920SimulationExaminersPrimary: Voeltz, Emanuel T.Assistant: Miller, Craig Steven Attorney, Agent or FirmInternational ClassG07C 003/14AbstractA diagnostic system and method for rotating machinery having mechanical problems combine AI-based interpretive reasoning with rotordynamic-based modeling and numerical optimization. A vibration response in the machinery to be diagnosed is first measured by machine sensors, and this measured response is used in a rule-based expert system to determine a probable cause of the machinery's mechanical problem. An appropriate finite element analytical model of the machinery is generated based on the probable cause. An optimizer computes the predicted response from the analytical model and compares it with the measured response. The model is automatically refined, guided by the expert system and numerical optimization, to match the predicted response with the measured response. The modifications to the model necessary to duplicate the measured response of the defective machinery are then indicative of the defects.Field of SearchResonance, frequency, or amplitude studyIn detection of a liquid reaction, a chemical reaction, or a nuclear reaction Bearing, gear, or related moving mechanism Listening or sound tube Fluid, fluid leak, or pipe flaw detection Acoustic emission Acoustical impedance Structural bond evaluation Rotating machinery or device Machine condition Bearing Vibration | |
