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Use Of Gas Path Debris Monitoring As A Tool In Gas Turbine Engine Health Monitoring And Diagnostics
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Book Synopsis Use of Gas Path Debris Monitoring as a Tool in Gas Turbine Engine Health Monitoring and Diagnostics by : A. S. Green
Download or read book Use of Gas Path Debris Monitoring as a Tool in Gas Turbine Engine Health Monitoring and Diagnostics written by A. S. Green and published by . This book was released on 2005 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Health Monitoring of Turbine Engine Gas Path Components and Measurement Instruments by : Y. H. Lee
Download or read book Health Monitoring of Turbine Engine Gas Path Components and Measurement Instruments written by Y. H. Lee and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine and Aeroengine Congress & Exhibition Birmingham, UK - June 10-13, 1996.
Book Synopsis Diagnostics and Prognostics of Aerospace Engines by : Ravi Rajamani
Download or read book Diagnostics and Prognostics of Aerospace Engines written by Ravi Rajamani and published by SAE International. This book was released on 2018-11-28 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propulsion system is arguably the most critical part of the aircraft; it certainly is the single most expensive component of the vehicle. Ensuring that engines operate reliably without major maintenance issues is an important goal for all operators, military or commercial. Engine health management (EHM) is a critical piece of this puzzle and has been a part of the engine maintenance for more than five decades. In fact, systematic condition monitoring was introduced for engines before it was applied to other systems on the aircraft. Diagnostics and Prognostics of Aerospace Engines is a collection of technical papers from the archives of SAE International, which introduces the reader to a brief history of EHM, presents some examples of EHM functions, and outlines important future trends. The goal of engine health maintenance is ultimately to reduce the cost of operations by catching problems before they become major issues, by helping reduce repair times through diagnostics, and by facilitating logistic optimization through prognostic estimates. Diagnostics and Prognostics of Aerospace Engines shows that the essence of these goals has not changed over time.
Book Synopsis Gas Turbine Diagnostics by : Ranjan Ganguli
Download or read book Gas Turbine Diagnostics written by Ranjan Ganguli and published by CRC Press. This book was released on 2012-12-13 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely used for power generation, gas turbine engines are susceptible to faults due to the harsh working environment. Most engine problems are preceded by a sharp change in measurement deviations compared to a baseline engine, but the trend data of these deviations over time are contaminated with noise and non-Gaussian outliers. Gas Turbine Diagnostics: Signal Processing and Fault Isolation presents signal processing algorithms to improve fault diagnosis in gas turbine engines, particularly jet engines. The algorithms focus on removing noise and outliers while keeping the key signal features that may indicate a fault. The book brings together recent methods in data filtering, trend shift detection, and fault isolation, including several novel approaches proposed by the author. Each method is demonstrated through numerical simulations that can be easily performed by the reader. Coverage includes: Filters for gas turbines with slow data availability Hybrid filters for engines equipped with faster data monitoring systems Nonlinear myriad filters for cases where monitoring of transient data can lead to better fault detection Innovative nonlinear filters for data cleaning developed using optimization methods An edge detector based on gradient and Laplacian calculations A process of automating fault isolation using a bank of Kalman filters, fuzzy logic systems, neural networks, and genetic fuzzy systems when an engine model is available An example of vibration-based diagnostics for turbine blades to complement the performance-based methods Using simple examples, the book describes new research tools to more effectively isolate faults in gas turbine engines. These algorithms may also be useful for condition and health monitoring in other systems where sharp changes in measurement data indicate the onset of a fault.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Gas Path Analysis, Gas Path Debris Monitoring and Expert System Technology to the Allison T56 Turboprop Engine by : L.A. English
Download or read book Application of Gas Path Analysis, Gas Path Debris Monitoring and Expert System Technology to the Allison T56 Turboprop Engine written by L.A. English and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diagnostics and Prognostics of Aerospace Engines by : Ravi Rajamani
Download or read book Diagnostics and Prognostics of Aerospace Engines written by Ravi Rajamani and published by SAE International. This book was released on 2018-11-28 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propulsion system is arguably the most critical part of the aircraft; it certainly is the single most expensive component of the vehicle. Ensuring that engines operate reliably without major maintenance issues is an important goal for all operators, military or commercial. Engine health management (EHM) is a critical piece of this puzzle and has been a part of the engine maintenance for more than five decades. In fact, systematic condition monitoring was introduced for engines before it was applied to other systems on the aircraft. Diagnostics and Prognostics of Aerospace Engines is a collection of technical papers from the archives of SAE International, which introduces the reader to a brief history of EHM, presents some examples of EHM functions, and outlines important future trends. The goal of engine health maintenance is ultimately to reduce the cost of operations by catching problems before they become major issues, by helping reduce repair times through diagnostics, and by facilitating logistic optimization through prognostic estimates. Diagnostics and Prognostics of Aerospace Engines shows that the essence of these goals has not changed over time.
Book Synopsis Monitoring and Diagnostics of Aircraft Gas Turbine Engines by : Sergey Yunusov
Download or read book Monitoring and Diagnostics of Aircraft Gas Turbine Engines written by Sergey Yunusov and published by LAP Lambert Academic Publishing. This book was released on 2014-08-20 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: To assess the technical state of GTE, various tools and methods of diagnostics including instrumental and analytical ones are applied in operation. The analytical approach towards the assessment of technical state of engine is based on diagnostic models and methods. This work suggests some ways of improvement of GTE diagnostic models and methods to be applied in operation. Special attention has been paid to diagnostic matrices (DM) usage in GTE diagnostics, with the matrices being meant for the detection and isolation of faults in gas path of engine. The diagnostic matrices application experience has shown that their application in GTE diagnostics is limited for a number of reasons. Those reasons have been revealed in the paper, and some ways have been suggested allowing one to use diagnostic matrices in GTE diagnostics without restriction. A dedicated software package for automated construction and analysis of the matrices has been developed.
Book Synopsis Gas Turbine Engine Health Analysis Under Transient Operating Conditions for Application to an On-Board Monitoring System by : J. R. Esser
Download or read book Gas Turbine Engine Health Analysis Under Transient Operating Conditions for Application to an On-Board Monitoring System written by J. R. Esser and published by . This book was released on 1971 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted to determine if the 'health' of an operating jet engine could be determined during the transient operating mode. This study was conducted as part of the preliminary work necessary for the design and development of an on-board NAVY fighter jet engine monitoring system. The ultimate objective of the on-board system will be to analyze the health of the engine in real-time and inform the pilot of the condition of the engine(s). This study concentrated on evaluating the gas path parameters since these parameters are responsive indicators of the majority of the causes of NAVY engine removals. The transient analysis investigated in this study indicated that parameter repeatability during the engine transient is adequate to verify specification performance. Also, gas path related anomalies can be detected through transient analysis; and corrected high pressure rotor speed used as the independent variable provides the accuracy and sensitivity necessary for baseline establishment and performance comparison. The inclusion of transient analysis with steady state analysis in a real-time on-board monitoring and analysis system will expand the mission coverage and provide an immediate performance check prior to takeoff as a result of a snap acceleration to takeoff power. (Author).
Book Synopsis Fault Characterization and Diagnostics Supporting Condition-Based Operation and Maintenance of Gas Turbine Engines by : Eric Deshong
Download or read book Fault Characterization and Diagnostics Supporting Condition-Based Operation and Maintenance of Gas Turbine Engines written by Eric Deshong and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Condition-Based Operation and Maintenance (CBOM) is the state-of-the-art in maintenance approaches for gas turbine engines. CBOM applies engine sensor information to the optimization of future operation and maintenance procedures; this technique reduces costs for engine operators by minimizing unplanned outages and catastrophic engine degradation. However, due to the complexities of gas turbine operation and the lack of available engine sensors, further development is required to fully realize the benefits of CBOM. In the turbine section, rotating components interact with high temperature flows, which creates intense thermal and mechanical stresses. As a result, there are numerous mechanisms of component degradation in the turbine section. Furthermore, turbine components -- like stator vanes and rotor blades -- are among the most expensive in the engine because they are complex to design and manufacture. For these reasons, this dissertation addresses two main questions: (i) which parameters or faults within the turbine section are most important to monitor, and (ii) how can these parameters or faults be monitored in an engine-relevant environment? Although many turbine parameters and faults have been investigated in the open literature, there are some faults that are still not well understood. Rotor-casing eccentricity, which causes a non-constant blade tip clearance around the annulus, has not been investigated in terms of its effects on turbine efficiency. Therefore, the first study in this dissertation quantifies overall and local turbine efficiency for varying levels of rotor-casing eccentricity. Results showed negligible variations to overall turbine efficiency, meaning rotor-casing eccentricity only becomes relevant to CBOM when its severity causes rotordynamic issues. Purge flow is critical to turbine hardware longevity because it prevents ingestion of hot main gas path (MGP) flow into the under-platform regions. Despite its importance, there are currently no methods for monitoring purge flow performance in an engine environment. Therefore, the second study in this dissertation develops a predictive model for sealing effectiveness using inputs from two fast-response pressure sensors. Results exhibited low prediction errors across a full range of purge flow rates, which supports the viability of the modelling approach for CBOM. The final two studies in this dissertation address blade coolant flow monitoring. This cooling flow is responsible for protecting the turbine blades from the MGP flow, which exits the combustor at temperatures greater than the blade melting point. These studies showed that temperature measurements on the blade surface can be used to accurately predict blade coolant flow rate, and that defining the candidate features relative to the coolant trajectory is important for maintaining accuracy as coolant flow rate degradation occurs. This work enables blade coolant flow monitoring, which is currently not possible through existing condition monitoring techniques.
Book Synopsis Engine Health Monitoring System for Advanced Diagnostic Monitoring for Gas Turbine Engines by :
Download or read book Engine Health Monitoring System for Advanced Diagnostic Monitoring for Gas Turbine Engines written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A prototype USAF engine health management (EHM) system was developed and ground tested during this Phase II SBIR program. The EHM system is capable of real-time mechanical monitoring and diagnostics, aero-thermal performance monitoring and diagnostics, and "engine signature" based life accumulation. For the first time, state-of-the-art anomaly detection, monitoring, diagnosis and advanced life prediction analysis were integrated together in a single real-time engine health monitoring system. Additionally, the EHM system was developed to assist the 2-level maintenance concept and IHPTET initiatives.
Book Synopsis Mechanical Fault Diagnosis and condition monitoring by : R. Collacott
Download or read book Mechanical Fault Diagnosis and condition monitoring written by R. Collacott and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the most sophisticated fault diagnosis and condition monitoring systems have their origin in the aerospace and nuclear energy industries, their use is by no means restricted to such areas of 'high technology'. Modern machinery in most industrial plants is now so complex and expensive that mechanics find it increas ingly difficult to detect failure by, for instance, recognising changes in sound 'signatures', and few plants can afford the luxury of regular 'stripping down'. Increasingly, therefore, eady-warning devices are being employed in an effort to prevent catastrophic breakdown. This book provides the first co-ordinated compilation of fault diagnosis and con dition monitoring devices. It proceeds in three logical steps. The eady chapters deal with those conditions which contribute to deterioration and the consequent likely development of faults. The middle part of the book considers the various tech niques of monitoring and discusses the criteria for their selection in different situ ations. The final chapters provide a guide to the interpretation of the information signals deriving from monitoring, relating to reliability science and the mathematics of probability, and thus providing decision data on which management can act.
Download or read book Gas Turbines written by Gurrappa Injeti and published by BoD – Books on Demand. This book was released on 2010-09-27 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to provide valuable information for the analysis and design of various gas turbine engines for different applications. The target audience for this book is design, maintenance, materials, aerospace and mechanical engineers. The design and maintenance engineers in the gas turbine and aircraft industry will benefit immensely from the integration and system discussions in the book. The chapters are of high relevance and interest to manufacturers, researchers and academicians as well.
Book Synopsis Testing of a Real-time Health Monitoring and Diagnostic Systems for Gas Turbine Engines by : Michael J. Roemer
Download or read book Testing of a Real-time Health Monitoring and Diagnostic Systems for Gas Turbine Engines written by Michael J. Roemer and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Condition Monitoring by : B. K. N. Rao
Download or read book Handbook of Condition Monitoring written by B. K. N. Rao and published by Elsevier. This book was released on 1996 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. The need to reduce costs has generated a greater interest in condition monitoring in recent years. The Handbook of Condition Monitoring gives an extensive description of available products and their usage making it a source of practical guidance supported by basic theory.This handbook has been designed to assist individuals within companies in the methods and devices used to monitor the condition of machinery and products.
Download or read book 馬産優秀グループ業績発表会報告書 written by and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Diagnostics and Measurement Selection for On-line Monitoring of Gas Turbine Engines by : Giovanni Bechini
Download or read book Performance Diagnostics and Measurement Selection for On-line Monitoring of Gas Turbine Engines written by Giovanni Bechini and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing importance of maintenance planning and optimization in the current and future scenario of gas turbine aftermarket makes the gas turbine analyst aware of the benefits associated with an effective health monitoring system. This thesis reviews today's gas-path diagnostic methods in order to investigate the shortcomings and limitations regarding their capability of reducing downtime, increasing availability and minimizing life cycle costs of the engine.
