Flexible Pavement Design for Airfields (elastic Layered Method). PDF Download
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Author:
Publisher:
ISBN:
Category : Pavements, Flexible
Languages : en
Pages : 134
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Book Description
Author:
Publisher:
ISBN:
Category : Pavements, Flexible
Languages : en
Pages : 134
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Book Description
Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 124
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Book Description
Author: Yu Tang Chou
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 182
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Book Description
The instrumentation data of the multiple-wheel heavy gear load (MWHGL) tests were reduced and analyzed. By incorporating the performance of test pavements under traffic, relations between load and pavement response were established. A method was developed to compute the measured stresses and deflections of the test pavements; based on the method, the stresses and deflections can be computed for similar types of airfield pavements under different loads. Correlations were established between computed parameters and traffic performance data from the MWHGL test section as well as from many other pavement tests conducted by the Corps of Engineers. Based on the instrumentation data, the principle of superposition was found to be valid for flexible pavements. Attempts were made to reevaluate the equivalent single-wheel loads for MWHGLs by many different methods. (Author).
Author: Kyle Schmidt
Publisher: SAE International
ISBN: 146860466X
Category : Transportation
Languages : en
Pages : 194
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Book Description
Landing gear provides an intriguing and compelling challenge, combining many fields of science and engineering. Designed to guide the interested reader through the fundamentals aircraft wheel, brake and brake control design system, this book presents a specific element of landing gear design in an accessible way. The author’s two volume treatise, The Design of Aircraft Landing, was the inspiration for this book. The Design of Aircraft Landing is a landmark work for the industry and utilizes over 1,000 pages to present a complete, in-depth study of each component that must considered when designing an aircraft’s landing gear. While recognizing that not everyone may need the entire treatise, Aircraft Wheels, Brakes, and Brake Controls: Key Principles for Landing Gear Design is one of three quick reference guides focusing on one key element of aircraft design and landing gear design. This volume features an overview of brakes, aircraft deceleration, brake sizing, brake design, braking accessories, wheels, brake control as well as brake issues and concerns. R. Kyle Schmidt has over 25 years’ experience across three countries and has held a variety of variety of engineering roles relating to the development of new landing gears and the sustainment of existing landing gears in service.
Author:
Publisher:
ISBN:
Category : Cold regions
Languages : en
Pages : 260
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Book Description
Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
Introductory technical guidance for civil engineers and construction managers interested in design and construction of pavement for streets and highways. This guidance comes in two volumes. This volume contains the following: 15. PERFORMANCE PROBLEMS WITH PAVEMENTS 1 16. CONSOLIDATION, FINISHING AND CURING PORTLAND CEMENT CONCRETE PAVING 17. CONSTRUCTION AND CONTRACTION JOINTS IN PORTLAND CEMENT CONCRETE PAVEMENT 18. MATERIALS, PRODUCTION AND MIXING FOR PORTLAND CEMENT PAVEMENT 19. PERMEABLE CONCRETE PAVEMENT 20. REINFORCEMENT AND LOAD TRANSFER FOR PORTLAND CEMENT CONCRETE PAVEMENT 21. ELASTIC LAYERED METHODS OF PORTLAND CEMENT CONCRETE OVERLAY PAVEMENT DESIGN165 22. RESIN MODIFIED PAVEMENT 23. RIGID PAVEMENT DESIGN 24. REPAIR OF RIGID PAVEMENTS 25. SOIL STABILIZATION FOR PAVEMENTS 26. CONSTRUCTION METHODS FOR SOIL STABILIZED PAVEMENTS 27. TACK COAT FOR PAVEMENT.
Author: United States. Navy Department
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 150
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1224
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Book Description
Author: Robert Kyle Schmidt
Publisher: SAE International
ISBN: 0768099420
Category : Technology & Engineering
Languages : en
Pages : 1092
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Book Description
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.
Author: Susan R. Bigl
Publisher: DIANE Publishing
ISBN: 1428913955
Category : Frost heaving
Languages : en
Pages : 50
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Book Description
The U.S. Army Cold Regions Research and Engineering Laboratory is developing a mechanistic pavement design procedure for use in seasonal frost areas. The procedure was used to predict pavement performance of some test sections under construction at the Mn/ROAD facility. Simulations were conducted in three phases, investigating the effects on predictions of water table position, subgrade characteristics, asphalt model, and freeze season characteristics. The procedure predicted significantly different performance by the different test sections and highly variable results depending on the performance model applied. The simulated performance of the tests sections also was greatly affected by the subgrade conditions, e.g., density, soil moisture, and water table depth. In general, predictions for the full depth asphalt sections indicate that they will not fail due to cracking, but two of the three criteria for subgrade rufting indicate failure before the five or 10 year design life of the sections. Conventional sections are predicted not to fail due to subgrade rutting; however, sections including the more frost susceptible bases in their design are predicted to fail due to asphalt cracking relatively early in their design life, and sections with nonfrost susceptible bases are predicted to fail towards the end of the design life.
