.... A bleed valve was selected as the actuator in the proposed system. As a submode of the hybrid system, a fuzzy logic based active controller was designed to extend the stability operating range of the compressor. Meanwhile, a surge avoidance controller was used as a backup-mode to improve the safety...

.... In the case of single events, abrupt changes in the engine parameters are expected. Identifying these changes as soon as possible is referred to as detection. State-of-the-art detection algorithms are based on expert systems, neural networks, special filters, or fuzzy logic. This paper presents a novel...

...Richard W. Eustace This paper presents an example of the use of fuzzy logic combined with influence coefficients applied to engine test-cell data to diagnose gas-path related performance faults. The approach utilizes influence coefficients, which describe the changes in measurable parameters due...

...A. El-Shafei; T. A. F. Hassan; A. K. Soliman; Y. Zeyada; N. Rieger In this paper, the application of neural networks and fuzzy logic to the diagnosis of faults in rotating machinery is investigated. The learning-vector-quantization (LVQ) neural network is applied in series and in parallel...

..., the fuzzy approaches were applied. In performance simulation using the fuzzy logic, it was found that more effective engine operating points were found and calculation time was considerably reduced less than the traditional methods. Furthermore, MATLAB was used to apply the fuzzy logic easily as well...

...Dan Martis This method, based on fuzzy logic principles, is intended to find the most likely solution of an over-determined system, in specific conditions. The method addresses typical problems encountered in gas turbine performance analysis and, more specifically, to the alignment of a synthesis...

...), THEN ( Y is medium). 3 Defuzzification converts the fuzzy set values [of the output variable(s)] back to a crisp value so that it may be utilized in the control. 1 Fuzzy logic processes Generally speaking, there are three major processes common to all fuzzy control systems...

...R. Ganguli, Assistant Professor, A fuzzy logic system is developed for gas turbine module fault isolation. Inputs to the fuzzy logic system are measurement deviations of gas path parameters from a “good” baseline engine. The gas path measurements used are exhaust gas temperature, low and high rotor...

... uncertainties are still present. Fuzzy logic offers a way to handle this uncertainty ( 12 ). Fuzzy logic can be simply interpreted as a way of computing with words ( 24 ). In this paper, linear and nonlinear FMH filters are compared for reducing the noise inherent in gas turbine measurements. Simulation...