Results 101 to 110 of about 35,622 (241)
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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Design and Research of the Gear Modification of Wind Turbine Gearbox
Jixie chuandong, 2018 The helix line modification of pinion is determined by the analysis of the deformation of the pinion,through the mathematical modeling of gear dynamics,a theoretical basis for transmission error is provided.The gear modification of output gear of a 2 MW ...
Chen Fangming, Wan Qingliang
doaj
Jixie chuandong, 2017 The surface roughness data of test-piece with transverse roughness profiles are measured.With the help of the Fourier approximation,the measured data are used to form a roughness function which is then added to the oil film thickness equation and a model
Tao Kun, Qi Xiumei, Gao Chuangkuan
doaj
Jixie chuandong, 2017 Based on generating method machining pinion of hypoid gear,according to the cutting coordinate system of milling cutter and tooth surface equation,the mathematical model of machining pinion of hypoid gear is established,the theoretical tooth surface ...
Tang Hongyan +2 more
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Application of Face-Gear Drives in Helicopter Transmissions [PDF]
The use of face gears in helicopter transmissions was explored. A light-weight, split torque transmission design utilizing face gears was described. Face-gear design and geometry were investigated.
Bossler, R. B., Jr. +5 more
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Journal of Advanced Mechanical Design, Systems, and ManufacturingAiming at the sensitivity of installation errors caused by the complete conjugated tooth surface of cycloidal bevel gear, a method of tooth surface mismatch design which only modified the pinion cutter along two directions was proposed.
Shaowu NIE, Jinyu CHEN, Zhengyang HAN
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User's manual for tooth contact analysis of face-milled spiral bevel gears with given machine-tool settings [PDF]
Research was performed to develop a computer program that will: (1) simulate the meshing and bearing contact for face milled spiral beval gears with given machine tool settings; and (2) to obtain the output, some of the data is required for hydrodynamic ...
Chen, Jui-Sheng +2 more
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Jixie chuandong, 2012 By FEA and experiment,bending stress of pinion with tooth root oilhole for speed changer five-speed gears is studied.Using the three-dimensional software Pro/e and Pro/Mechanica,and based on the analysis of the five-speed gears,physical and mechanical ...
汪中厚, 徐径, 董德敏, 陈习江
doaj
Experimental testing of prototype face gears for helicopter transmissions [PDF]
An experimental program to test the feasibility of using face gears in a high-speed and high-power environment was conducted. Four face gear sets were tested, two sets at a time, in a closed-loop test stand at pinion rotational speeds to 19,100 rpm and ...
Bossler, R., Handschuh, R., Lewicki, D.
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Research on noise reduction of drive axle hypoid gear based on tooth surface mismatch modification
Advances in Mechanical EngineeringIn order to reduce the transmission noise of drive axle hypoid gear, a method of tooth surface mismatch modification was proposed. Firstly, on the basis of establishing the grinding mathematical model of hypoid gear with cutter tilt, the theoretical ...
Shaowu Nie, Jinyu Chen, Shaohang Liu
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