Results 71 to 80 of about 4,061 (184)
Dynamic Analysis of a Straight Bevel Gear Composite Structure [PDF]
, 2015 In this paper, orthotropic materials are selected to be used as a straight bevel gear. These materials have the advantage of being light, are durable in high speeds, require the minimum need for oil, high strengths, and extra loading capacities.
Al-Qrimli, Haidar Fadhil Abbas +3 more
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Results of NASA/Army transmission research [PDF]
Since 1970 the NASA Lewis Research Center and the U.S. Army Aviation Systems Command have shared an interest in advancing the technology for helicopter propulsion systems. In particular, that portion of the program that applies to the drive train and its
Coe, Harold H. +2 more
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Jixie chuandong, 2019 In order to study the meshing thermal characteristics of the differential bevel gear under differential conditions， based on the thermal elastohydrodynamic lubrication theory， an unsteady thermal elastohydrodynamic lubrication model of straight bevel ...
Cong Wei +3 more
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Mathematical models for the synthesis and optimization of spiral bevel gear tooth surfaces [PDF]
The geometry of spiral bevel gears and to their rational design are studied. The nonconjugate tooth surfaces of spiral bevel gears are, in theory, replaced (or approximated) by conjugated tooth surfaces.
Goldrich, R. N. +2 more
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Design of straight bevel gear for pitting resistance [PDF]
FME Transactions, 2018 Based on the Tredgold geometric approximation, a transparent contact stress capacity model for straight bevel gears is presented. A bevel load factor is defined which provides a kinetic link between the physical bevel gear and virtual spur gear.
Osakue Edward E., Lucky Anetor
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Development of a full-scale transmission testing procedure to evaluate advanced lubricants [PDF]
Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500-hp Helicopter Transmission Test Stand. The testing was part of a joint Navy/NASA/Army lubrication program.
Decker, Harry J. +2 more
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How to determine spiral bevel gear tooth geometry for finite element analysis [PDF]
An analytical method was developed to determine gear tooth surface coordinates of face milled spiral bevel gears. The method combines the basic gear design parameters with the kinematical aspects for spiral bevel gear manufacturing.
Handschuh, Robert F., Litvin, Faydor L.
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Research of the Geometric Characteristic of Undercutting and Limit Normal Point in Gear Geometry
Jixie chuandong, 2015 The undercutting phenomena and the limit normal point are two important concepts in gearing theory,design and manufacturing.Based on the different opinions about them in the current research of limit normal point and the geometry and movement ...
Chen Ningxin
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On the danger of redundancies in some aerospace mechanisms [PDF]
An attempt is made to show that redundancies in some aerospace mechanisms do not generally improve the odds for success. Some of these redundancies may even be the very cause for failure of the system. To illustrate this fallacy, two designs based on the
Chew, M.
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Ingeniería Mecánica, 2003 Mediante un modelo matemático son dadas las principales relaciones entre los parámetros geométricos básicos requeridosen la evaluación del diámetro de cresta exterior de un engranaje ortogonal de ruedas cónicas con dientes rectos y suma decorrecciones ...
G. González Rey
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