Download or read book A Critical Study of Spin up Drag Loads on Aircraft Landing Gears written by John Rousseau Brown and published by Hassell Street Press. This book was released on 2021-09-09 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book A Critical Study of Spin up Drag Loads on Aircraft Landing Gears written by John R. Brown and published by . This book was released on 1949 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Wheel Spin up Drag Loads written by Benjamin Milwitzky and published by . This book was released on 1954 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents some recently obtained information on landing-gear applied drag loads and on the nature of wheel spin-up phenomenon in landing, based on a program of tests under controlled conditions in the Langley impact basin. In particular, a study has been made of the nature and variation of the coefficient of friction between the tire and the runway during the wheel spin-up process. Also, comparisons have been made of the various results obtained in impacts with forward speed, impacts with forward speed and reverse wheel rotation, spin-up drop tests, and impacts with forward speed and wheel prerotation.
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.
Download or read book A Critical Study of Aircraft Landing Gears written by J. F. McBrearty and published by . This book was released on 1948 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Aircraft Landing Gear written by Robert Kyle Schmidt and published by SAE International. This book was released on 2015-08-24 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aircraft landing gear system is relatively unique on board an aircraft—it is both structure and machine, supporting the aircraft on the ground, yet providing functions such as energy absorption during landing, retraction, steering, and braking. Advances in Aircraft Landing Gear is a collection of eleven hand-picked technical papers focusing on the significant advancements that have occurred in this field concerning numeric modeling, electric actuation, and composite materials. Additionally, papers discussing self-powered landing gear and more electrical overall aircraft architectures have been included. The content of Advances in Aircraft Landing Gear is divided into two sections: Analysis and Design Methods; and Electric Actuation, Control, and Taxi. For those looking for more information on aircraft landing gears, the SAE A-5 committee (the Aerospace Landing Gear Systems Committee), which meets twice a year, serves as a useful forum for discussion on landing gear issues and development. A current listing of documents produced and maintained by this committee appears in the appendix.
Download or read book Aircraft Landing Gear ground loads when spinning up the wheels at touch down written by J. W. Blinkhorn and published by . This book was released on 1952 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report research Paper written by and published by . This book was released on 1957 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical and Analog Studies of the Effects of Nonlinear Stability Derivatives on the Longitudinal Motions of an Aircraft in Response to Step Control Deflections and to the Influence of Proportional Automatic Control written by Benjamin Milwitzky and published by . This book was released on 1955 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Paper written by and published by . This book was released on 1957 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of the Effect of Wheel Prerotation on Landing gear Drag Loads written by Dexter M. Potter and published by . This book was released on 1954 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of prerotation on the wheel spin-up drag loads on a small landing gear during landings has been investigated by means of tests in the Langley impact basin. A series of simulated landings with various amounts of prerotation was made with a dropping weight of 2,500 pounds and a forward speed of 85 fps at a strut angle of 15 degrees. The results were compared with data from previous tests made with various forward speeds and no prerotation. The effect of prerotation on the maximum drag load was the smae as the effect of reducting the horizontal velocity. At low horizontal velocities any amount of prerotation reduced the drag load. The reduction became greater as the vertical velocity increased. Reductions in drag load resulting from prerotation were accompanied by reductions in vertical load. At high forward speeds somewhat beyond the range where prerotation was tested, however, consideration of existing data indicated that large amounts of prerotation would have to be used in order to assure a reduction in drag load. In this higher speed region, insufficient prerotation could actually increase the drag load. The wheel spin-up process appeared to be a small factor in tire wear and prerotation therefore should not materially increase tire life.
Download or read book Theoretical Dynamic Analysis of the Landing Loads on a Vehicle with a Tricycle Landing Gear written by Richard B. Noll and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings aircraft Design Problems in Structures Materials Propulsion Control and Aerodynamics written by and published by . This book was released on 1962 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Dynamic Forces in Aircraft Landing Gear Struts with Relation to the Optimum Angle of Suspension written by Harry Wood and published by . This book was released on 1949 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Landing Gear Dynamic Spin Up and Spring Back Loads written by Edward J. Griffin and published by . This book was released on 1950 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Loads written by United States. Aircraft Committee. Subcommittee on Air Force-Navy-Civil Aircraft Design Criteria and published by . This book was released on 1952 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
