A Method For Landing Gear Modeling And Simulation With Experimental Validation

Download A Method For Landing Gear Modeling And Simulation With Experimental Validation full books in PDF, epub, and Kindle. Read online A Method For Landing Gear Modeling And Simulation With Experimental Validation ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

A Method for Landing Gear Modeling and Simulation with Experimental Validation

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722136291
Total Pages : 100 pages
Book Rating : 4.1/5 (362 download)

DOWNLOAD NOW!

Book Synopsis A Method for Landing Gear Modeling and Simulation with Experimental Validation by : National Aeronautics and Space Administration (NASA)

Download or read book A Method for Landing Gear Modeling and Simulation with Experimental Validation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents an approach for modeling and simulating landing gear systems. Specifically, a nonlinear model of an A-6 Intruder Main Gear is developed, simulated, and validated against static and dynamic test data. This model includes nonlinear effects such as a polytropic gas model, velocity squared damping, a geometry governed model for the discharge coefficients, stick-slip friction effects and a nonlinear tire spring and damping model. An Adams-Moulton predictor corrector was used to integrate the equations of motion until a discontinuity caused by a stick-slip friction model was reached, at which point, a Runga-Kutta routine integrated past the discontinuity and returned the problem solution back to the predictor corrector. Run times of this software are around 2 mins. per 1 sec. of simulation under dynamic circumstances. To validate the model, engineers at the Aircraft Landing Dynamics facilities at NASA Langley Research Center installed one A-6 main gear on a drop carriage and used a hydraulic shaker table to provide simulated runway inputs to the gear. Model parameters were tuned to produce excellent agreement for many cases. Daniels, James N. Langley Research Center...

A Method for Landing Gear Modeling and Simulation with Experimental Validation

Author : James Nathan Daniels
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!

Book Synopsis A Method for Landing Gear Modeling and Simulation with Experimental Validation by : James Nathan Daniels

Download or read book A Method for Landing Gear Modeling and Simulation with Experimental Validation written by James Nathan Daniels and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Overview of Landing Gear Dynamics

Author : Jocelyn I. Pritchard
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!

Book Synopsis An Overview of Landing Gear Dynamics by : Jocelyn I. Pritchard

Download or read book An Overview of Landing Gear Dynamics written by Jocelyn I. Pritchard and published by . This book was released on 1999 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: On of the problems facing the aircraft community is landing gear dynamics, especially shimmy and brake-induced vibration. Shimmy and brake-induced vibrations can lead to accidents due to excessive wear and shortened life of gear parts and contribute to pilot and passenger discomfort. To increase understanding of these problems, a literature survey was performed. The major focus is on work from the last ten years. Some older publications are included to understand the longevity of the problem and the background from earlier researchers. The literature survey includes analyses, testing, modeling, and simulation of aircraft landing gear; and experimental validation and characterization of shimmy and brake-induced vibration of aircraft landing gear. The paper presents an overview of the problem, background information, and a history of landing gear dynamics problems and solutions. Based on the survey an assessment and recommendations of the most critically needed enhancements to the state of the art will be presented. The status of Langley work contributing to this activity will be given.

Advanced Multifunctional Lightweight Aerostructures

Author : Kamran Behdinan
Publisher : John Wiley & Sons
ISBN 13 : 1119756723
Total Pages : 256 pages
Book Rating : 4.1/5 (197 download)

DOWNLOAD NOW!

Book Synopsis Advanced Multifunctional Lightweight Aerostructures by : Kamran Behdinan

Download or read book Advanced Multifunctional Lightweight Aerostructures written by Kamran Behdinan and published by John Wiley & Sons. This book was released on 2021-01-29 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a review of the newest methodologies for the characterization and modelling of lightweight materials and structures Advances in Multifunctional Lightweight Structures offers a text that provides and in-depth analyses of the thermal, electrical and mechanical responses of multi-functional lightweight structures. The authors, noted experts on the topic, address the most recent and innovative methodologies for the characterization and modelling of lightweight materials and discuss various shell and plate theories. They present multifunctional materials and structures and offer detailed descriptions of the complex modelling of these structures. The text is divided into three sections that demonstrate a keen understanding and awareness for multi-functional lightweight structures by taking a unique approach. The authors explore multi-disciplinary modelling and characterization alongside benchmark problems and applications, topics that are rarely approached in this field. This important book: • Offers an analyses of the thermal, electrical and mechanical responses of multi-functional lightweight structures • Covers innovative methodologies for the characterization and modelling of lightweight materials and structures • Presents a characterization of a wide variety of novel materials • Considers multifunctional novel structures with potential applications in different high-tech industries • Includes efficient and highly accurate methodologies Written for professionals, engineers and researchers in industrial and other specialized research institutions, Advances in Multifunctional Lightweight Structures offers a much needed text to the design practices of existing engineering building services and how these methods combine with recent developments.

Modeling and Validation of a Navy A6-Intruder Actively Controlled Landing Gear System

Author : Lucas G. Horta
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!

Book Synopsis Modeling and Validation of a Navy A6-Intruder Actively Controlled Landing Gear System by : Lucas G. Horta

Download or read book Modeling and Validation of a Navy A6-Intruder Actively Controlled Landing Gear System written by Lucas G. Horta and published by . This book was released on 1999 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concepts for long-range air travel are characterized by airframe designs with long, slender, relatively flexible fuselages. One aspect often overlooked is ground-induced vibration of these aircraft. This paper presents an analytical and experimental study of reducing ground-induced aircraft vibration loads by using actively controlled landing gear. A facility has been developed to test various active landing gear control concepts and their performance. The facility uses a Navy A6 Intruder landing gear fitted with an auxiliary hydraulic supply electronically controlled by servo valves. An analytical model of the gear is presented, including modifications to actuate the gear externally, and test data are used to validate the model. The control design is described and closed-loop test and analysis comparisons are presented.

NASA Technical Memorandum

Author :
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!

Book Synopsis NASA Technical Memorandum by :

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1997 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the 10th World Congress on Engineering Asset Management (WCEAM 2015)

Author : Kari T. Koskinen
Publisher : Springer
ISBN 13 : 3319270648
Total Pages : 672 pages
Book Rating : 4.3/5 (192 download)

DOWNLOAD NOW!

Book Synopsis Proceedings of the 10th World Congress on Engineering Asset Management (WCEAM 2015) by : Kari T. Koskinen

Download or read book Proceedings of the 10th World Congress on Engineering Asset Management (WCEAM 2015) written by Kari T. Koskinen and published by Springer. This book was released on 2016-03-25 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises refereed papers from the 10th World Congress on Engineering Asset Management (WCEAM 2015), held in Tampere, Finland in September 2015. These proceedings include a compilation of state-of-the-art papers covering a comprehensive range of subjects equally relevant to business managers and engineering professionals alike. With a focus on various aspects of engineering asset management ranging from strategic level issues to detail-level machine health issues, these papers address both industry and public sector concerns and issues, as well as advanced academic research. Proceedings of the WCEAM 2015 is an excellent reference and resource for asset management practitioners, researchers and academics, as well as undergraduate and postgraduate students at tertiary institutions or in the industry.

Advances in Mechanical and Materials Technology

Author : Kannan Govindan
Publisher : Springer Nature
ISBN 13 : 9811627940
Total Pages : 1422 pages
Book Rating : 4.8/5 (116 download)

DOWNLOAD NOW!

Book Synopsis Advances in Mechanical and Materials Technology by : Kannan Govindan

Download or read book Advances in Mechanical and Materials Technology written by Kannan Govindan and published by Springer Nature. This book was released on 2022-01-01 with total page 1422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select papers from the International Conference on Energy, Material Sciences and Mechanical Engineering (EMSME) - 2020. The book covers the three core areas of energy, material sciences and mechanical engineering. The topics covered include non-conventional energy resources, energy harvesting, polymers, composites, 2D materials, systems engineering, materials engineering, micro-machining, renewable energy, industrial engineering and additive manufacturing. This book will be useful to researchers and professionals working in the areas of mechanical and industrial engineering, materials applications, and energy technology.

Aircraft Landing Gear Design

Author : Norman S. Currey
Publisher : AIAA
ISBN 13 : 9781600860188
Total Pages : 394 pages
Book Rating : 4.8/5 (61 download)

DOWNLOAD NOW!

Book Synopsis Aircraft Landing Gear Design by : Norman S. Currey

Download or read book Aircraft Landing Gear Design written by Norman S. Currey and published by AIAA. This book was released on 1988 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the only book available today that covers military and commercial aircraft landing gear design. It is a comprehensive text that will lead students and engineers from the initial concepts of landing gear design through final detail design. The book provides a vital link in landing gear design technology from historical practices to modern design trends, and it considers the necessary airfield interface with landing gear design. The text is backed up by calculations, specifications, references, working examples.

Monthly Catalog of United States Government Publications

Author :
Publisher :
ISBN 13 :
Total Pages : 940 pages
Book Rating : 4.3/5 (243 download)

DOWNLOAD NOW!

Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1997 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Conference Publication

Author :
Publisher :
ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!

Book Synopsis NASA Conference Publication by :

Download or read book NASA Conference Publication written by and published by . This book was released on 1999 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Design of Aircraft Landing Gear

Author : Robert Kyle Schmidt
Publisher : SAE International
ISBN 13 : 0768099420
Total Pages : 1092 pages
Book Rating : 4.7/5 (68 download)

DOWNLOAD NOW!

Book Synopsis The Design of Aircraft Landing Gear by : Robert Kyle Schmidt

Download or read book The Design of Aircraft Landing Gear written by Robert Kyle Schmidt and published by SAE International. This book was released on 2021-02-18 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aircraft landing gear and its associated systems represent a compelling design challenge: simultaneously a system, a structure, and a machine, it supports the aircraft on the ground, absorbs landing and braking energy, permits maneuvering, and retracts to minimize aircraft drag. Yet, as it is not required during flight, it also represents dead weight and significant effort must be made to minimize its total mass. The Design of Aircraft Landing Gear, written by R. Kyle Schmidt, PE (B.A.Sc. - Mechanical Engineering, M.Sc. - Safety and Aircraft Accident Investigation, Chairman of the SAE A-5 Committee on Aircraft Landing Gear), is designed to guide the reader through the key principles of landing system design and to provide additional references when available. Many problems which must be confronted have already been addressed by others in the past, but the information is not known or shared, leading to the observation that there are few new problems, but many new people. The Design of Aircraft Landing Gear is intended to share much of the existing information and provide avenues for further exploration. The design of an aircraft and its associated systems, including the landing system, involves iterative loops as the impact of each modification to a system or component is evaluated against the whole. It is rare to find that the lightest possible landing gear represents the best solution for the aircraft: the lightest landing gear may require attachment structures which don't exist and which would require significant weight and compromise on the part of the airframe structure design. With those requirements and compromises in mind,The Design of Aircraft Landing Gear starts with the study of airfield compatibility, aircraft stability on the ground, the correct choice of tires, followed by discussion of brakes, wheels, and brake control systems. Various landing gear architectures are investigated together with the details of shock absorber designs. Retraction, kinematics, and mechanisms are studied as well as possible actuation approaches. Detailed information on the various hydraulic and electric services commonly found on aircraft, and system elements such as dressings, lighting, and steering are also reviewed. Detail design points, the process of analysis, and a review of the relevant requirements and regulations round out the book content. The Design of Aircraft Landing Gear is a landmark work in the industry, and a must-read for any engineer interested in updating specific skills and students preparing for an exciting career.

CEAS/AIAA/ICASE/NASA Langley International Forum on Aeroelasticity and Structural Dynamics 1999

Author :
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!

Book Synopsis CEAS/AIAA/ICASE/NASA Langley International Forum on Aeroelasticity and Structural Dynamics 1999 by :

Download or read book CEAS/AIAA/ICASE/NASA Langley International Forum on Aeroelasticity and Structural Dynamics 1999 written by and published by . This book was released on 1999 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling and Simulation in the Systems Engineering Life Cycle

Author : Margaret L. Loper
Publisher : Springer
ISBN 13 : 144715634X
Total Pages : 405 pages
Book Rating : 4.4/5 (471 download)

DOWNLOAD NOW!

Book Synopsis Modeling and Simulation in the Systems Engineering Life Cycle by : Margaret L. Loper

Download or read book Modeling and Simulation in the Systems Engineering Life Cycle written by Margaret L. Loper and published by Springer. This book was released on 2015-04-30 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This easy to read text provides a broad introduction to the fundamental concepts of modeling and simulation (M&S) and systems engineering, highlighting how M&S is used across the entire systems engineering lifecycle. Features: reviews the full breadth of technologies, methodologies and uses of M&S, rather than just focusing on a specific aspect of the field; presents contributions from specialists in each topic covered; introduces the foundational elements and processes that serve as the groundwork for understanding M&S; explores common methods and methodologies used in M&S; discusses how best to design and execute experiments, covering the use of Monte Carlo techniques, surrogate modeling and distributed simulation; explores the use of M&S throughout the systems development lifecycle, describing a number of methods, techniques, and tools available to support systems engineering processes; provides a selection of case studies illustrating the use of M&S in systems engineering across a variety of domains.

NASA Langley Scientific and Technical Information Output: 1996

Author :
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!

Book Synopsis NASA Langley Scientific and Technical Information Output: 1996 by :

Download or read book NASA Langley Scientific and Technical Information Output: 1996 written by and published by . This book was released on 1997 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Vehicle Dynamics

Author : Dieter Schramm
Publisher : Springer
ISBN 13 : 354036045X
Total Pages : 417 pages
Book Rating : 4.5/5 (43 download)

DOWNLOAD NOW!

Book Synopsis Vehicle Dynamics by : Dieter Schramm

Download or read book Vehicle Dynamics written by Dieter Schramm and published by Springer. This book was released on 2014-07-17 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors examine in detail the fundamentals and mathematical descriptions of the dynamics of automobiles. In this context different levels of complexity will be presented, starting with basic single-track models up to complex three-dimensional multi-body models. A particular focus is on the process of establishing mathematical models on the basis of real cars and the validation of simulation results. The methods presented are explained in detail by means of selected application scenarios.

On Subscale Flight Testing

Author : Alejandro Sobron
Publisher : Linköping University Electronic Press
ISBN 13 : 9176852202
Total Pages : 130 pages
Book Rating : 4.1/5 (768 download)

DOWNLOAD NOW!

Book Synopsis On Subscale Flight Testing by : Alejandro Sobron

Download or read book On Subscale Flight Testing written by Alejandro Sobron and published by Linköping University Electronic Press. This book was released on 2018-11-05 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Downscaled physical models, also referred to as subscale models, have played an essential role in the investigation of the complex physics of flight until the recent disruption of numerical simulation. Despite the fact that improvements in computational methods are slowly pushing experimental techniques towards a secondary role as verification or calibration tools, real-world testing of physical prototypes still provides an unmatched confidence. Physical models are very effective at revealing issues that are sometimes not correctly identified in the virtual domain, and hence can be a valuable complement to other design tools. But traditional wind-tunnel testing cannot always meet all of the requirements of modern aeronautical research and development. It is nowadays too expensive to use these scarce facilities to explore different design iterations during the initial stages of aircraft development, or to experiment with new and immature technologies. Testing of free-flight subscale models, referred to as Subscale Flight Testing (SFT), could offer an affordable and low-risk alternative for complementing conventional techniques with both qualitative and quantitative information. The miniaturisation of mechatronic systems, the advances in rapid-prototyping techniques and power storage, as well as new manufacturing methods, currently enable the development of sophisticated test objects at scales that were impractical some decades ago. Moreover, the recent boom in the commercial drone industry has driven a quick development of specialised electronics and sensors, which offer nowadays surprising capabilities at competitive prices. These recent technological disruptions have significantly altered the cost-benefit function of SFT and it is necessary to re-evaluate its potential in the contemporary aircraft development context. This thesis aims to increase the comprehension and knowledge of the SFT method in order to define a practical framework for its use in aircraft design; focusing on low-cost, short-time solutions that don’t require more than a small organization and few resources. This objective is approached from a theoretical point of view by means of an analysis of the physical and practical limitations of the scaling laws; and from an empirical point of view by means of field experiments aimed at identifying practical needs for equipment, methods, and tools. A low-cost data acquisition system is developed and tested; a novel method for semi-automated flight testing in small airspaces is proposed; a set of tools for analysis and visualisation of flight data is presented; and it is also demonstrated that it is possible to explore and demonstrate new technology using SFT with a very limited amount of economic and human resources. All these, together with a theoretical review and contextualisation, contribute to increasing the comprehension and knowledge of the SFT method in general, and its potential applications in aircraft conceptual design in particular.