Comprehensive Analysis of Bevel and Hypoid Gears: Experimental Studies, Simulation Modelling, and In-Depth Evaluation of the FZG Hypoid Test Rig [PDF]
LAUREA MAGISTRALEGrazie alla loro capacità di trasmettere potenza tra assi rotanti perpendicolari tra di loro, così come grazie al loro relativamente facile e consolidato metodo produttivo, le coppie coniche hanno un ampio spettro di applicazione ...
AGHAYEV, TURAL, Ayrancilar, Utku
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THE INFLUENCE OF CHANGES IN THE GEOMETRY OF THE TOOTH SURFACE OF THE PINION BEVEL GEAR ON THE KINEMATIC ACCURACY OF PAIR MESH [PDF]
: The paper describes the possibilities of bevel gears kinematics design on the basis of the motion graph and improving modifications to cut the pinion teeth flanks. The result is the ability to increase the accuracy of the kinematic transmission.
Jadwiga Pisula, Mieczysław Płocica
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Constant probe orientation for fast contact-based inspection of 3D free-form surfaces using (3+2)-axis inspection machines [PDF]
A new probe optimization method for contact based (3+2)-axis inspection machines is proposed. Given an inspection path of a stylus on a free-form surface, an optimal orientation of the stylus is computed such that (i) the inclination angle of the stylus ...
Barton, M. +6 more
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Gearing technology in its modern form has a history of only 100 years. However, the earliest form of gearing can probably be traced back to fourth century B.C. Greece. Current gear practice and recent advances in the technology are drawn together.
Coy, J. J. +2 more
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Design of a high ratio gear reduction unit [PDF]
This is a right angle gear drive design where helical and spiral bevel gears are being used. Because of the high speed ratio (1800/18 , input/output), three reductions were applied.
Xydias, Jean
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The contact ratio is main effective factor on mesh characteristic of double circular arc profile spiral bevel gear(DCAPSBG).The overlap contact ratio of DCAPSBG ensures its continuous transmission.Based on the contact ratio definition of spiral bevel ...
张瑞亮, 树学锋, 王铁, 武志斐
doaj
NASA transmission research and its probable effects on helicopter transmission design [PDF]
Transmissions studied for application to helicopters in addition to the more conventional geared transmissions include hybrid (traction/gear), bearingless planetary, and split torque transmissions. Research is being performed to establish the validity of
Coy, J. J. +2 more
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Flexibility effects on tooth contact location in spiral bevel gear transmissions [PDF]
An analytical method to predict the shift of the contact ellipse between the meshing teeth in a spiral bevel gear set is presented in this report. The contact ellipse shift of interest is the motion of the nominal tooth contact location on each tooth ...
Altidis, P. C., Savage, M.
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Reverse engineering and refurbishing of an Mi-24 helicopter main gear box [PDF]
The Mi-24 helicopter is one of the most famous heavy lift helicopters designed with a net weight of 8.4 tonnes, while its gross weight is 12.5 tonnes. This helicopter is powered by two TV3-117 turbo-engines, coupled to a VR-24 main rotor transmission ...
Zimuto, Israel
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Variable pitch fan system for NASA/Navy research and technology aircraft [PDF]
Preliminary design of a shaft driven, variable-pitch lift fan and lift-cruise fan was conducted for a V/STOL Research and Technology Aircraft. The lift fan and lift-cruise fan employed a common rotor of 157.5 cm diameter, 1.18 pressure ratio variable ...
Black, D. M., Ryan, W. P., Yates, A. F.
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