Results 61 to 70 of about 750 (90)
Thermal behavior spiral bevel gears [PDF]
An experimental and analytical study of the thermal behavior of spiral bevel gears is presented. Experimental data were taken using thermocoupled test hardware and an infrared microscope.
Handschuh, Robert F.
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NASA patent abstracts bibliography: A continuing bibliography. Section 1: Abstracts (supplement 19) [PDF]
s are cited for 130 patents and patent applications introduced into the NASA scientific and technical information system during the period of January 1981 through July 1981.
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Nonlinear dynamic characteristics of modified variable hyperbolic circular arc tooth trace cylindrical gears. [PDF]
Sci RepMa D, Ye Z.
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Liquid rocket engine axial-flow turbopumps [PDF]
The axial pump is considered in terms of the total turbopump assembly. Stage hydrodynamic design, pump rotor assembly, pump materials for liquid hydrogen applications, and safety factors as utilized in state of the art pumps are among the topics ...
Farquhar, J. +4 more
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Energy efficient engine: Preliminary design and integration studies [PDF]
Parametric design and mission evaluations of advanced turbofan configurations were conducted for future transport aircraft application. Economics, environmental suitability and fuel efficiency were investigated and compared with goals set by NASA. Of the
Hirschkron, R. +4 more
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Sikorsky Aircraft Advanced Rotorcraft Transmission (ART) program [PDF]
The objectives of the Advanced Rotorcraft Transmission program were to achieve a 25 percent weight reduction, a 10 dB noise reduction, and a 5,000 hour mean time between removals (MTBR).
Kish, Jules G.
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Technology needs for high-speed rotorcraft [PDF]
A study to determine the technology development required for high-speed rotorcraft development was conducted. The study begins with an initial assessment of six concepts capable of flight at, or greater than 450 knots with helicopter-like hover ...
Lovenguth, Marc +4 more
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An extension of the Dewey decimal system of classification applied to the engineering industries [PDF]
, 1912 Breckenridge, Lester Paige +1 more
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An Accurate Approach to Modeling the Genuine Tooth Surfaces of the Face-Milled Spiral Bevel and Hypoid Gears [PDF]
, 2012 Xie, Shuangxi
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