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Regression Simulation Of Turbine Engine Performance Accuracy Improvement Task Iv
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Book Synopsis Regression Simulation of Turbine Engine Performance - Accuracy Improvement (TASK IV). by : Joseph A Sabatella (Jr)
Download or read book Regression Simulation of Turbine Engine Performance - Accuracy Improvement (TASK IV). written by Joseph A Sabatella (Jr) and published by . This book was released on 1978 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Regression Simulation of Turbine Engine Performance (RSTEP) Task IV program was an analytical study to identify and evaluate approaches to improve the accuracy of regression surfaces for use in TEVCS/ARES procedures. The Central Composite Design (CCD) data selection pattern was studied and found to be a flexible, accurate, and economical alternative to the orthogonal Latin Square design selector. The impact of the number of independent variables and the number of data points was systematically investigated. Two methodologies which provided significant improvement in the accuracy of the regression surfaces were also identified. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1990 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regression Simulation of Turbine Engine Performance/Aircraft Regression Model by : Warren Joy
Download or read book Regression Simulation of Turbine Engine Performance/Aircraft Regression Model written by Warren Joy and published by . This book was released on 1978 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aircraft Regression Model (ARM) Task has explored modification of the Boeing Turbine Engine Variable Cycle Selection /Airplane Response Engine Selection(TEVCS/ARES) procedures by decoupling the representation of specific propulsion systems and the detailed mission definitions from the overall surface fit representations of the aircraft. Detailed comparisons between the RSTEP/ARM techniques developed herein and another available technique for aircraft/engine design refinement are provided as the principal result of this program. All objectives of the RSTEP/ARM effort were attained. A simplified mission performance computer program was developed and tested in the evaluation of two engine cycle concepts, one a turbojet and one a turbofan. The program was simplified by using regression models for airframe geometry, weights, and drags. The program is currently operational in both the Air Force and at two industry sites.
Download or read book NASA SP. written by and published by . This book was released on 1992 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regression Simulation of Turbine Engine Performance (RSTEP). by : Richard A. Sulkoske
Download or read book Regression Simulation of Turbine Engine Performance (RSTEP). written by Richard A. Sulkoske and published by . This book was released on 1979 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of developing six alternate calculation procedures for parametric turbine engine performance computer programs is presented. The alternate procedures were evaluated separately and then collectively in a baseline parametric engine performance program. The alternate procedures dealt with thermodynamic properties, matrix coefficient prediction, regression of component characteristics, afterburner calculations and regression of the compression process. Analysis of the combined procedures resulted in a cost reduction of approximately 46 percent with average deviations in engine net thrust and fuel flow rate of less than 0.7 percent. (Author).
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Book Synopsis Modeling of Turbomachines for Control and Diagnostic Applications by : Igor Loboda
Download or read book Modeling of Turbomachines for Control and Diagnostic Applications written by Igor Loboda and published by BoD – Books on Demand. This book was released on 2020-05-27 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new studies in the area of turbomachine mathematical modeling with a focus on models applied to developing engine control and diagnostic systems. The book contains one introductory and four main chapters. The introductory chapter describes the area of modeling of gas and wind turbines and shows the demand for further improvement of the models. The first three main chapters offer particular improvements in gas turbine modeling. First, a novel methodology for the modeling of engine starting is presented. Second, a thorough theoretical comparative analysis is performed for the models of engine internal gas capacities, and practical recommendations are given on model applications, in particular for engine control purposes. Third, multiple algorithms for calculating important unmeasured parameters for engine diagnostics are proposed and compared. It is proven that the best algorithms allow accurate prognosis of engine remaining lifetime.The field of wind turbine modeling is presented in the last main chapter. It introduces a general-purpose model that describes both aerodynamic and electric parts of a wind power plant. Such a detailed physics-based model will help with the development of more accurate control and diagnostic systems.In this way, this book includes four new studies in the area of gas and wind turbine modeling. These studies will be interesting and useful for specialists in turbine engine control and diagnostics.
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1984 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 4th International Conference on Industrial Engineering by : Andrey A. Radionov
Download or read book Proceedings of the 4th International Conference on Industrial Engineering written by Andrey A. Radionov and published by Springer. This book was released on 2018-12-07 with total page 2368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights recent findings in industrial, manufacturing and mechanical engineering, and provides an overview of the state of the art in these fields, mainly in Russia and Eastern Europe. A broad range of topics and issues in modern engineering are discussed, including the dynamics of machines and working processes, friction, wear and lubrication in machines, surface transport and technological machines, manufacturing engineering of industrial facilities, materials engineering, metallurgy, control systems and their industrial applications, industrial mechatronics, automation and robotics. The book gathers selected papers presented at the 4th International Conference on Industrial Engineering (ICIE), held in Moscow, Russia in May 2018. The authors are experts in various fields of engineering, and all papers have been carefully reviewed. Given its scope, the book will be of interest to a wide readership, including mechanical and production engineers, lecturers in engineering disciplines, and engineering graduates.
Book Synopsis Regression Modeling of Turbine Engine Performance by : James R. Ruble
Download or read book Regression Modeling of Turbine Engine Performance written by James R. Ruble and published by . This book was released on 1980 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: This effort examines the use of regression modeling to represent turbine engine performance as a function of Mach number, altitude, power setting, design for pressure ratio and design overall pressure ratio. A model, satisfactory for conceptual analysis work, was constructed and evaluated. A significant reduction in propulsion data generation cost was demonstrated (approximately 15 to 1). Details of the approach are presented along with a discussion of the practicality of such a model. (Author).
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1988 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Real-Time Modeling Methods for Gas Turbine Engine Performance by : S-15 Gas Turbine Perf Simulation Nomenclature and Interfaces
Download or read book Real-Time Modeling Methods for Gas Turbine Engine Performance written by S-15 Gas Turbine Perf Simulation Nomenclature and Interfaces and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Aerospace Information Report (AIR) provides a review of real-time modeling methodologies for gas turbine engine performance. The application of real-time models and modeling methodologies are discussed. The modeling methodologies addressed in this AIR concentrate on the aerothermal portion of the gas turbine propulsion system. Characteristics of the models, the various algorithms used in them, and system integration issues are also reviewed. In addition, example cases of digital models in source code are provided for several methodologies. This document has been updated to include an advancement in aerothermodynamic real time model transient simulation methodology. In recent years, there has been an emphasis on using a single model for both non-real-time and real-time simulation, without any loss in accuracy and without the extra software maintenance efforts associated with having a separate real-time model. Discussion of a method to optimize the equation structure of the non-real-time aerothermal model for real-time execution is included.
Book Synopsis Synthesis of Flow Simulation Methods for Fast and Accurate Gas Turbine Engine Performance Estimation by : Ioannis Templalexis
Download or read book Synthesis of Flow Simulation Methods for Fast and Accurate Gas Turbine Engine Performance Estimation written by Ioannis Templalexis and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis of Flow Simulation Methods for Fast and Accurate Gas Turbine Engine Performance Estimation.
Book Synopsis Gas Turbines Modeling, Simulation, and Control by : Hamid Asgari
Download or read book Gas Turbines Modeling, Simulation, and Control written by Hamid Asgari and published by CRC Press. This book was released on 2015-10-16 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Turbines Modeling, Simulation, and Control: Using Artificial Neural Networks provides new approaches and novel solutions to the modeling, simulation, and control of gas turbines (GTs) using artificial neural networks (ANNs). After delivering a brief introduction to GT performance and classification, the book:Outlines important criteria to consi
Book Synopsis A Non-linear Weighted Least Squares Gas Turbine Diagnostic Approach and Multi-fuel Performance Simulation by : Daniel Kamunge
Download or read book A Non-linear Weighted Least Squares Gas Turbine Diagnostic Approach and Multi-fuel Performance Simulation written by Daniel Kamunge and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The gas turbine which has found numerous applications in Air, Land and Seaapplications, as a propulsion system, electricity generator and prime mover, issubject to deterioration of its individual components. In the past, variousmethodologies have been developed to quantify this deterioration with varyingdegrees of success. No single method addresses all issues pertaining to gasturbine diagnostics and thus, room for improvement exists. The first part of thisresearch investigates the feasibility of non-linear W eighted Least Squares as agas turbine component deterioration quantification tool. Two new weightingschemes have been developed to address measurement noise. Four caseshave been run to demonstrate the non-linear weighted least squares method, inconjunction with the new weighting schemes. Results demonstrate that thenon-linear weighted least squares method effectively addresses measurementnoise and quantifies gas path component faults with improved accuracy over itslinear counterpart and over methods that do not address measurement noise. Since Gas turbine diagnostics is based on analysis of engine performance atgiven ambient and power setting conditions; accurate and reliable engineperformance modelling and simulation models are essential for meaningful gasturbine diagnostics. The second part of this research therefore sought todevelop a multi-fuel and multi-caloric simulation method with the view ofimproving simulation accuracy. The method developed is based on non-linearinterpolation of fuel tables. Fuel tables for Jet-A, UK Natural gas, Kerosene andDiesel were produced. Six case studies were carried out and the resultsdemonstrate that the method has significantly improved accuracy over linearinterpolation based methods and methods that assume thermal perfection.
