Results 111 to 120 of about 14,675 (206)
Sustainable Cooling Strategies in End Milling of AISI H11 Steel Based on ANFIS Model
MachinesIn hard milling, there has been a significant surge in demand for sustainable machining techniques. Research indicates that the Minimum Quantity Lubrication (MQL) method is a promising approach to achieving sustainability in milling processes due to its ...
Arumugam Balasuadhakar +2 more
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Design and lubrication of high-speed rolling-element bearings [PDF]
The speed capability of rolling element bearings has increased from speeds of less than two million DN to speeds of three million DN. The life and reliability of these bearings also increased where they are equal to, or greater than, those of bearings ...
Zaretsky, E. V.
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Overview of liquid lubricants for advanced aircraft [PDF]
An overall status report on liquid lubricants for use in high-performance turbojet engines is presented. Emphasis is placed on the oxidation and thermal stability requirements imposed upon the lubrication system.
Loomis, W. R.
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Helicopters as a Theme in a Machine Design Course [PDF]
, 2014 Helicopters as a Theme in Teaching Machine Design A machine design course is required in most undergraduate mechanical engineering curricula.This course generally covers an introduction to mechanical engineering design, a review of materials engineering,
Nagurka, Mark L., Turner, Devin
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Comparison of spur gear efficiency prediction methods [PDF]
The predictions of five spur-gear efficiency calculation methods were compared with three sets of test data using different gear geometries. The data and the analysis methods were limited to jet lubricated, ground, spur gears. The data covered a range in
Anderson, N. E., Loewenthal, S. H.
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Evaluation of water film by reynolds' equation in deep drawing using high-pressured water jet [PDF]
, 2013 The authors had proposed a deep drawing method using high-pressured jet waters as lubricant. This method aimed to suppress the usage of oil or other chemical lubricants, which might require some additional processes for lubricant removal and become a ...
Horikoshi, Yuki +4 more
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Forschung im IngenieurwesenAbstract As the demand for higher power density and reliable mechanical gear transmissions grows, effective lubrication has become a critical design requirement. Optimizing lubricant supply not only reduces power losses and improves system efficiency but also lowers operating temperatures and enhances overall reliability.
openaire +1 more source
Advanced gearbox technology [PDF]
An advanced 13,000 HP, counterrotating (CR) gearbox was designed and successfully tested to provide a technology base for future designs of geared propfan propulsion systems for both commercial and military aircraft.
Anderson, N. E. +3 more
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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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Chemistry: Space resources for teachers including suggestions for classroom activities and laboratory experiments [PDF]
, 1971 Curriculum supplement to assist general chemistry teachers in updating instruction materials with aerospace ...
Bowman, W. H., Lawrence, R. M.
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