Fore-and-aft Elastic Response Characteristics of Size 34 X 9.9, Type VII, 14 Ply-rated Aircraft Tires of Bias Ply, Bias-belted, and Radial-belted Design PDF Download
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Author: John Albert Tanner
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Book Description
Author: John Albert Tanner
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Book Description
Author: John A. Tanner
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 56
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Author: Pamela A. Davis
Publisher:
ISBN:
Category : Damping (Mechanics)
Languages : en
Pages : 48
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Book Description
Author: John A. Tanner
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 36
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Book Description
A study was made to evaluate the elastic behavior of a braked rolling tire and to relate this behavior to the tire characteristics obtained from simple static flexure tests. The study consisted of static and braked-rolling tests of two types of bias-ply aircraft tires and an analysis which related tire reaction to the braking forces. The results of this investigation indicate that the elastic response of an aircraft tire to braking forces can be defined by the displacement distribution along the tire periphery and by the fore-and-aft spring constant. Changes in the rolling radius due to braking can be predicted with reasonable accuracy from elastic measurements of the static free-tread periphery or from elastic measurements within the footprint during low-speed braking, assuming there is no slippage between the tire and the pavement. The results of these tests further indicate that what was heretofore considered as pure tire slippage under braked-rolling conditions may be wholly or in part the result of tire elasticity. The elasticity must be considered in the design or application of efficient automatic braking systems.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722719012
Category :
Languages : en
Pages : 44
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Book Description
An investigation was conducted at Langley Research Center to determine the quasi-static and dynamic response characteristics of F-4 military fighter 30x11.5-14.5/26PR bias-ply and radial-belted main gear tires. Tire properties were measured by the application of vertical, lateral, and fore-and-aft loads. Mass moment-of-inertia data were also obtained. The results of the study include quasi-static load-deflection curves, free-vibration time-history plots, energy loss associated with hysteresis, stiffness and damping characteristics, footprint geometry, and inertia properties of each type of tire. The difference between bias-ply and radial-belted tire construction is given, as well as the advantages and disadvantages of each tire design. Three simple damping models representing viscous, structural, and Coulomb friction are presented and compared with the experimental data. The conclusions discussed contain a summary of test observations. Davis, Pamela A. Langley Research Center RTOP 505-63-10-02...
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722800178
Category :
Languages : en
Pages : 24
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Book Description
An investigation was conducted to determine the static mechanical properties of a 30 x 11.5 to 14.5, Type 8, bias-ply and radial-belted aircraft tire. The properties measured were the spring rate and damping characteristics of each tire from vertical- and lateral-loading hysteresis loops. Mass moment of inertia tests were also conducted. The results of the study are presented along with a discussion of the advantages and disadvantages of each type of tire. Davis, Pamela A. and Lopez, Mercedes C. Langley Research Center RTOP 505-63-41-02...
Author: Pamela A. Davis
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 32
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Author: John A. Tanner
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
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Author: R. N. Dodge
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 23
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Book Description
