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Cascade Optimization For Aircraft Engines With Regression And Neural Network Analysis Approximators
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721214037 Total Pages :38 pages Book Rating :4.2/5 (14 download)
Book Synopsis Cascade Optimization for Aircraft Engines with Regression and Neural Network Analysis - Approximators by : National Aeronautics and Space Administration (NASA)
Download or read book Cascade Optimization for Aircraft Engines with Regression and Neural Network Analysis - Approximators written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Engine Performance Program (NEPP) can configure and analyze almost any type of gas turbine engine that can be generated through the interconnection of a set of standard physical components. In addition, the code can optimize engine performance by changing adjustable variables under a set of constraints. However, for engine cycle problems at certain operating points, the NEPP code can encounter difficulties: nonconvergence in the currently implemented Powell's optimization algorithm and deficiencies in the Newton-Raphson solver during engine balancing. A project was undertaken to correct these deficiencies. Nonconvergence was avoided through a cascade optimization strategy, and deficiencies associated with engine balancing were eliminated through neural network and linear regression methods. An approximation-interspersed cascade strategy was used to optimize the engine's operation over its flight envelope. Replacement of Powell's algorithm by the cascade strategy improved the optimization segment of the NEPP code. The performance of the linear regression and neural network methods as alternative engine analyzers was found to be satisfactory. This report considers two examples-a supersonic mixed-flow turbofan engine and a subsonic waverotor-topped engine-to illustrate the results, and it discusses insights gained from the improved version of the NEPP code. Patnaik, Surya N. and Guptill, James D. and Hopkins, Dale A. and Lavelle, Thomas M. Glenn Research Center NASA/TM-2000-209177, E-11686, NAS 1.15:209177
Book Synopsis Cascade Optimization for Aircraft Engines With Regression and Neural Network Analysis - Approximators by :
Download or read book Cascade Optimization for Aircraft Engines With Regression and Neural Network Analysis - Approximators written by and published by . This book was released on 2000 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cascade Optimization Strategy for Aircraft and Air-Breathing Propulsion System Concepts by :
Download or read book Cascade Optimization Strategy for Aircraft and Air-Breathing Propulsion System Concepts written by and published by . This book was released on 1996 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research & Technology 2000 written by and published by DIANE Publishing. This book was released on with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research & Technology 1999 written by and published by DIANE Publishing. This book was released on with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neural Network and Regression Approximations in High Speed Civil Transport Aircraft Design Optimization by :
Download or read book Neural Network and Regression Approximations in High Speed Civil Transport Aircraft Design Optimization written by and published by . This book was released on 1998 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Lessons Learned During Solutions of Multidisciplinary Design Optimization Problems by :
Download or read book Lessons Learned During Solutions of Multidisciplinary Design Optimization Problems written by and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Aircraft written by and published by . This book was released on 1998 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Optimization of Air-Breathing Engine Concept by : Surya N. Patnaik
Download or read book Optimization of Air-Breathing Engine Concept written by Surya N. Patnaik and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Scientific and Technical Aerospace Reports by :
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Download or read book Research and Technology 1997 written by and published by . This book was released on 1998 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721657247 Total Pages :30 pages Book Rating :4.6/5 (572 download)
Book Synopsis Multidisciplinary Design Optimization for Aeropropulsion Engines and Solid Modeling/Animation Via the Integrated Forced Methods by : National Aeronautics and Space Administration (NASA)
Download or read book Multidisciplinary Design Optimization for Aeropropulsion Engines and Solid Modeling/Animation Via the Integrated Forced Methods written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The grant closure report is organized in the following four chapters: Chapter describes the two research areas Design optimization and Solid mechanics. Ten journal publications are listed in the second chapter. Five highlights is the subject matter of chapter three. CHAPTER 1. The Design Optimization Test Bed CometBoards. CHAPTER 2. Solid Mechanics: Integrated Force Method of Analysis. CHAPTER 3. Five Highlights: Neural Network and Regression Methods Demonstrated in the Design Optimization of a Subsonic Aircraft. Neural Network and Regression Soft Model Extended for PX-300 Aircraft Engine. Engine with Regression and Neural Network Approximators Designed. Cascade Optimization Strategy with Neural network and Regression Approximations Demonstrated on a Preliminary Aircraft Engine Design. Neural Network and Regression Approximations Used in Aircraft Design. Glenn Research Center
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