Results 111 to 120 of about 3,279 (236)
Design of an advanced 500-hp helicopter transmission [PDF]
, 1983 High contact ratio spar gears planetary, spiral besel gears, bearings, investment-cast planet carrier, and investment cast stainless-steel housings are ...
Battles, R. A., Braddock, C. E.
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Dynamics Simulation and Modeling of Double Circular Arc Spiral Bevel Gear based on UG and ADAMS
Jixie chuandong, 2016 Based on tooth surface equation of double circular arc spiral bevel gear,using the three- dimensional modeling software of UG,the three- dimensional parametric modeling of double circular arc spiral bevel gear and the virtual assembling of the active ...
Zhang Yufeng, Wu Baolin
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Tooth Contact Shift in Loaded Spiral Bevel Gears [PDF]
An analytical method is presented to predict the shifts of the contact ellipses of spiral bevel gear teeth under load. The contact ellipse shift is the motion of the tooth contact position from the ideal pitch point to its location under load. The shifts
Altidis, P. C. +4 more
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Numerical Analysis and Test Research of the Dynamic Stress of Spiral Bevel Gear
Jixie chuandong, 2017 The inlet gearbox spiral bevel gear of aircraft turbofan engine may result in insufficient of gear vibration margin because of the limitation of structure integration.
Liu Haiou, Liu Xingxing
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Tooth profile analysiis of circular-cut, spiral-bevel gears [PDF]
An analysis of tooth profile changes in the transverse plane of circular-cut, spiral-bevel crown gears is presented. The analysis assumes a straight-line profile in the mid-transverse plane.
Coy, J. J., Huston, R. L., Lin, Y.
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TRANSMISSION ERROR OF THE SPIRAL BEVEL GEARS [PDF]
Engineering Mechanics ...., 2020 Z. Fraňová, K. Řehák, A. Prokop
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Gear tooth stress measurements on the UH-60A helicopter transmission [PDF]
The U.S. Army UH-60A (Black Hawk) 2200-kW (3000-hp) class twin-engine helicopter transmission was tested at the NASA Lewis Research Center. Results from these experimental (strain-gage) stress tests will enhance the data base for gear stress levels in ...
Oswald, Fred B.
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Spiral bevel and circular arc helical gears: Tooth contact analysis and the effect of misalignment on circular arc helical gears [PDF]
A computer aided method for tooth contact analysis was developed and applied. Optimal machine-tool settings for spiral bevel gears are proposed and when applied indicated that kinematic errors can be minimized while maintaining a desirable bearing ...
Coy, J. J. +4 more
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Identification and proposed control of helicopter transmission noise at the source [PDF]
Helicopter cabin interiors require noise treatment which is expensive and adds weight. The gears inside the main power transmission are major sources of cabin noise.
Coy, John J. +6 more
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Jixie chuandong, 2019 Taking the tooth surface of spiral bevel gear after grinding as study object, according to the grinding principle of spiral bevel gear, the grinding mask of tooth surface is solved, and the life prediction equation of the elastohydrodynamic lubrication ...
Huang Shangren Huang Pengpeng
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