Measurement of Aircraft Tire Mechanical Properties Used in Shimmy Analysys By Means Scale Models PDF Download
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Author: G. H. Nybakken
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Author: G. H. Nybakken
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Book Description
Author: G. H. Nybakken
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Author: Samuel Kelly Clark
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 90
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Book Description
A theoretical and experimental investigation of the feasibility of determining the mechanical properties of aircraft tires from small-scale model tires was accomplished. The theoretical results indicate that the macroscopic static and dynamic mechanical properties of aircraft tires can be accurately determined from the scale model tires although the microscopic and thermal properties of aircraft tires can not. The experimental investigation was conducted on a scale model of a 40 x 12, 14 ply rated, type 7 aircraft tire with a scaling factor of 8.65. The experimental results indicate that the scale model tire exhibited the same static mechanical properties as the prototype tire when compared on a dimensionless basis. The structural modeling concept discussed in this report is believed to be exact for mechanical properties of aircraft tires under static, rolling, and transient conditions.
Author: S.K. CLARK
Publisher:
ISBN:
Category :
Languages : en
Pages : 68
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Author: Robert H. Daugherty
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 108
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Author: Robert F. Smiley
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 176
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Book Description
A study is presented of pneumatic tires which are of interest to aircraft designers. The principal topics discussed are tire vertical-force-deflection characteristics; lateral, fore-and-aft, and torsional spring constants; footprint-area properties; relaxation lengths; rolling radius; cornering force, cornering power, self-alining torque, and pneumatic caster for yawed rolling conditions; effects of wheel tilt; and tire radial growth under the influence of centrifugal forces.
Author: Pamela A. Davis
Publisher:
ISBN:
Category : Damping (Mechanics)
Languages : en
Pages : 48
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Author: United States. National Bureau of Standards. Office of Vehicle Systems Research
Publisher:
ISBN:
Category : Motor vehicles
Languages : en
Pages : 228
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Author: R. N. Dodge
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 56
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Book Description
Fore-aft, lateral, and vertical spring rates of model and full-scale pneumatic tires were evaluated by testing techniques generally employed by industry and various testing groups. The purpose of this experimental program was to investigate what effects the different testing techniques have on the measured values of these important static tire mechanical properties. The testing techniques included both incremental and continuous loadings applied at various rates over half, full, and repeated cycles. Of the three properties evaluated, the fore-aft stiffness was demonstrated to be the most affected by the different testing techniques used to obtain it. Appreciable differences in the fore-aft spring rates occurred using both the increment- and continuous-loading techniques; however, the most significant effect was attributed to variations in the size of the fore-aft force loop. The dependence of lateral stiffness values on testing techniques followed the same trends as that for fore-aft stiffness, except to a lesser degree. Vertical stiffness values were found to be nearly independent of testing procedures if the nonlinear portion of the vertical force-deflection curves is avoided.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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