EQUIDISTANT TOOTH GENERATION ON NONCYLINDRICAL SURFACES FOR TWO-PARAMETER GEARING [PDF]
, 2011 The questions of design research of noncylindrical tooth surfaces for two-parameter gearing on example of bevel gears with constant normal pitch forgearing variators are been considered.
Alexander MIRONENKO +2 more
core
An Innovative Flexible-Honing Method with Dampers for Long-Life, Mass-Machining of Face Gears. [PDF]
Materials (Basel), 2022 Chu X, Zhou Z, Zeng H, Wang Y, Huang Y.
europepmc +1 more source
Strength Matching Method of Face Gear Pair Considering Service Space Limitation to Improve Strength Performance. [PDF]
Materials (Basel), 2022 Chu X, Zeng H, Wang Y, Huang Y.
europepmc +1 more source
Efficiency testing of a helicopter transmission planetary reduction stage [PDF]
A parametric study of the efficiency of a 310-kW (420-hp) helicopter transmission planetary test section (four planets) was performed. The purpose was to determine the planetary contribution to the overall transmission power loss.
Handschuh, Robert F., Rohn, Douglas A.
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Research on Precision Blanking Process Design of Micro Gear Based on Piezoelectric Actuator. [PDF]
Micromachines (Basel), 2021 Hu C, Shi Y, Liu F.
europepmc +1 more source
Properties of Elasto-Hydrodynamic Oil Film in Meshing of Harmonic Drive Gears. [PDF]
Materials (Basel), 2021 Kalina A +4 more
europepmc +1 more source
Advanced Face Gear Surface Durability Evaluations [PDF]
The surface durability life of helical face gears and isotropic super-finished (ISF) face gears was investigated. Experimental fatigue tests were performed at the NASA Glenn Research Center. Endurance tests were performed on 10 sets of helical face gears
Heath, Gregory F., Lewicki, David G.
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Programmable gear-based mechanical metamaterials. [PDF]
Nat Mater, 2022 Fang X +5 more
europepmc +1 more source
Current Research Activities in Drive System Technology in Support of the NASA Rotorcraft Program [PDF]
Drive system technology is a key area for improving rotorcraft performance, noise/vibration reduction, and reducing operational and manufacturing costs. An overview of current research areas that support the NASA Rotorcraft Program will be provided. Work
Handschuh, Robert F. +1 more
core +1 more source
Transmission Efficiency Measurements and Correlations with Physical Characteristics of the Lubricant [PDF]
Data from helicopter transmission efficiency tests were compared to physical properties of the eleven lubricants used in those tests. The tests were conducted with the OH-58 helicopter main rotor transmission.
Coy, J. J. +2 more
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