Actuators for a space manipulator [PDF]
The robotic manipulator can be decomposed into distinct subsytems. One particular area of interest of mechanical subsystems is electromechanical actuators (or drives). A drive is defined as a motor with an appropriate transmission.
Brunson, P., Chun, W.
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Testing of UH-60A helicopter transmission in NASA Lewis 2240-kW (3000-hp) facility [PDF]
The U.S. Army's UH-60A Black Hawk 2240-kW (3000-hp) class, twin-engine helicopter transmission was tested at the NASA Lewis Research Center. The vibration and efficiency test results will be used to enhance the data base for similar-class helicopters ...
Coe, H. H. +2 more
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Prediction and reduction of dynamic factor based on dynamic behavior of gear systems. [PDF]
Sci RepLee D, Shim SB, Kim S.
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Analysis of the Impact of Changes in Thermomechanical Properties of Polymer Materials on the Machining Process of Gears. [PDF]
Polymers (Basel), 2020 Gnatowski A, Gołębski R, Sikora P.
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Determination of real machine-tool settings and minimization of real surface deviation by computerized inspection [PDF]
A numerical method is developed for the minimization of deviations of real tooth surfaces from the theoretical ones. The deviations are caused by errors of manufacturing, errors of installment of machine-tool settings and distortion of surfaces by heat ...
Kuan, Chihping +2 more
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Machining Simulation of Novikov Profile Gear Models for Analysis and Computational Calculations. [PDF]
Materials (Basel)Fudali P, Markowski T, Pacana J.
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Advanced Rotorcraft Transmission (ART) program [PDF]
Work performed by the McDonnell Douglas Helicopter Company and Lucas Western, Inc. within the U.S. Army/NASA Advanced Rotorcraft Transmission (ART) Program is summarized.
Bossler, Robert B., Jr. +1 more
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Modeling and dynamic analysis of split torsion transmission system considering backlash and center distance errors. [PDF]
Sci RepDing J, Jin G.
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Composites for Advanced Drive Systems, A Systems Analysis-Revolutionary Vertical Lift Technology (RVLT) [PDF]
Rotorcraft propulsion systems are continually looking to improve power density; that is reducing weight and increasing power throughput. In order to advance rotorcraft propulsion system technology, NASA Glenn Research Center (NGRC) contracted Boeing ...
Bouwer, Scott H. +5 more
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Research on gear shaving error analysis based on knowledge graph. [PDF]
Sci RepMen L, Cai A.
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