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A Generalized Likelihood Ratio Test for Adaptive Gas Turbine Performance Monitoring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Kalman filters are widely used in the turbine engine community for health monitoring purposes. This algorithm has proven its capability to track gradual deterioration with good accuracy. On the ...
A Sparse Estimation Approach to Fault Isolation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Least-squares-based methods are very popular in the jet engine community for health monitoring purposes. In most practical situations, the number of health parameters exceeds the number of ...
Constrained Sparse Estimation for Improved Fault Isolation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Least-squares-based methods are very popular in the jet engine community for health monitoring purpose. Their isolation capability can be improved by using a prior knowledge on the health ...
A Sensor-Fault-Tolerant Diagnosis Tool Based on a Quadratic Programming Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Kalman filters are widely used in the turbine engine community for health monitoring purpose. This algorithm gives a good estimate of the engine condition provided that the discrepancies between ...
Toward a High Order Throughflow––Investigation of the Nonlinear Harmonic Method Coupled With an Immersed Boundary Method for the Modeling of the Circumferential Stresses
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Capturing a level of modeling of the flow inside a multistage turbomachine, such as unsteadiness for example, can be done at different levels of detail, either by capturing all deterministic ...
Ten Years of Experience With a Small Jet Engine as a Support for Education
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In 1997 the Turbomachinery Group of the University of Liège decided to acquire a small jet engine to illustrate the courses in propulsion and to provide the students with the opportunity ...
Design Method for Subsonic and Transonic Cascade With Prescribed Mach Number Distribution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A iterative procedure for blade design, using a time marching procedure to solve the unsteady Euler equations in the blade-to-blade plane, is presented. A flow solver, which performs the analysis ...
A Way to Deal With Model-Plant Mismatch for a Reliable Diagnosis in Transient Operation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Least-squares health parameter identification techniques, such as the Kalman filter, have been extensively used to solve diagnosis problems. Indeed, such methods give a good estimate provided that ...
On the Role of the Deterministic and Circumferential Stresses in Throughflow Calculations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a throughflow analysis tool developed in the context of the average-passage flow model elaborated by Adamczyk. The Adamczyk’s flow model describes the 3D time-averaged flow ...
A Study on Engine Health Monitoring in the Frequency Domain
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Most of the techniques developed to date for module performance analysis rely on steady-state measurements from a single operating point to evaluate the level of deterioration of an engine. One ...