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Record Details

Record 39 of 1515
Advanced Rotorcraft Transmission (ART) program review
Author and Affiliation:
Kish, Jules(Sikorsky Aircraft, Stratford, CT, United States)
Abstract: This paper summarizes the work accomplished to date on the NASA/Army Advanced Rotorcraft Transmission (ART) program. A 23-percent weight reduction has been demonstrated for a high output reduction ratio split path transmission compared to an aggressive program goal of 25-percent. Greater than 10 dB noise reduction in the cabin is achieved by the use of high contact ratio spur and double helical gears. In addition, mean times between transmission removals have been increased by almost four fold. These performance gains have been achieved by application of advanced transmission technology concepts. Technology areas are being explored which offer high gain but at relatively high risk in such areas as composites, split power gear concepts, double helical gears, new gear materials, high speed spring clutches, and ceramic rolling element bearings.
Publication Date: Jan 01, 1990
Document ID:
19910044835
(Acquired Nov 28, 1995)
Accession Number: 91A29458
Subject Category: MECHANICAL ENGINEERING
Document Type: Conference Paper
Publication Information: (SEE A91-29451)
Publisher Information: United States
Contract/Grant/Task Num: NAS3-25423
Financial Sponsor: NASA; United States
Organization Source: Sikorsky Aircraft; Stratford, CT, United States
Description: 11p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ENGINE DESIGN; HELICOPTER ENGINES; MILITARY HELICOPTERS; TRANSMISSIONS (MACHINE ELEMENTS); AIRCRAFT CONSTRUCTION MATERIALS; AIRCRAFT MAINTENANCE; GEARS; NOISE REDUCTION; PROPULSION SYSTEM CONFIGURATIONS; WEIGHT REDUCTION
Imprint And Other Notes: IN: Rotary Wing Propulsion Specialists' Meeting, Williamsburg, VA, Nov. 13-15, 1990, Proceedings (A91-29451 11-07). Alexandria, VA, American Helicopter Society, 1990, 11 p. U.S. Army-supported research.
Availability Source: Other Sources
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