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Sikorsky Aircraft Advanced Rotorcraft Transmission Art Program Final Report
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Book Synopsis Sikorsky Aircraft Advanced Rotorcraft Transmission (ART) Program - Final Report by : Jules G. Kish
Download or read book Sikorsky Aircraft Advanced Rotorcraft Transmission (ART) Program - Final Report written by Jules G. Kish and published by . This book was released on 1993 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the Advanced Rotorcraft Transmission program were to achieve a 25% weight reduction, a 10 dB noise reduction, and a 5,000 hour mean time between removals (MTBR). A three engine Army Cargo Aircraft (ACA) of 85,000 pound gross weight was used as the baseline. Preliminary designs were conducted of split path and split torque transmissions to evaluate weight, reliability, and noise. A split path gearbox was determined to be 23% lighter, greater than 10 dB quieter, and almost four times more reliable than the baseline two stage planetary design. Detail design studies were conducted of the chosen split path configuration and drawings were produced of a 1/2 size gearbox consisting of a single engine path of the split path section. Fabrication and testing was then conducted on the 1/2 size gearbox. The 1/2 size gearbox testing proved that the concept of the split path gearbox with high reduction ratio double helical output gear was sound. The improvements were attributed to extensive use of composites, spring clutches, advanced high hot hardness gear steels, the split path configuration itself, high reduction ratio, double helical gearing on the output stage, elastomeric load sharing devices, and elimination of accessory drives ... Transmissions, Gears, Bearings, Helicopters.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724373762 Total Pages :212 pages Book Rating :4.3/5 (737 download)
Book Synopsis Sikorsky Aircraft Advanced Rotorcraft Transmission (Art) Program by : National Aeronautics and Space Administration (NASA)
Download or read book Sikorsky Aircraft Advanced Rotorcraft Transmission (Art) Program written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-27 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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). A three engine Army Cargo Aircraft (ACA) of 85,000 pounds gross weight was used as the baseline. Preliminary designs were conducted of split path and split torque transmissions to evaluate weight, reliability, and noise. A split path gearbox was determined to be 23 percent lighter, greater than 10 dB quieter, and almost four times more reliable than the baseline two stage planetary design. Detail design studies were conducted of the chosen split path configuration, and drawings were produced of a 1/2 size gearbox consisting of a single engine path of the split path section. Fabrication and testing was then conducted on the 1/2 size gearbox. The 1/2 size gearbox testing proved that the concept of the split path gearbox with high reduction ratio double helical output gear was sound. The improvements were attributed to extensive use of composites, spring clutches, advanced high hot hardness gear steels, the split path configuration itself, high reduction ratio, double helical gearing on the output stage, elastomeric load sharing devices, and elimination of accessory drives. Kish, Jules G. Unspecified Center NASA-CR-191079, NAS 1.26:191079, ARL-CR-49, AD-A266406 NAS3-25423; DA PROJ. 1L1-62211-A-47-A; RTOP 505-62-10...
Book Synopsis Proceedings of the TEPEN International Workshop on Fault Diagnostic and Prognostic by : Tongtong Liu
Download or read book Proceedings of the TEPEN International Workshop on Fault Diagnostic and Prognostic written by Tongtong Liu and published by Springer Nature. This book was released on with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Investigation of the Thermal Behavior of High-Speed Helical Gear Trains by :
Download or read book Preliminary Investigation of the Thermal Behavior of High-Speed Helical Gear Trains written by and published by . This book was released on 2002 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary experimental investigation of the thermal behavior of high-speed helical gears will be presented. A full-scale torque regenerative test stand has been built to test a representative helical gear train as that used in tiltrotor aircraft. Power loss and temperature data from a wide range of operating conditions were measured. Loop power ranged up to 3730 kW (5000 hp). Drive system components representative of flight quality hardware were used in the test program. The results attained in this initial study indicated that windage losses due to the high rotational speeds that were tested were far more important than the losses due to the gear meshing losses.
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Book Synopsis Advances in Power Transmission Science and Technology by : Ze Yong Yin
Download or read book Advances in Power Transmission Science and Technology written by Ze Yong Yin and published by Trans Tech Publications Ltd. This book was released on 2011-08-16 with total page 945 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises a selection of 202 papers covering all of the latest advances and developments in design, modeling and analysis, materials manufacturing and testing, and their engineering applications in power transmission systems. It will provide readers with a broad overview of recent progress and achievements in the field of power transmission.
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Engineering by : Murat Gokcek
Download or read book Mechanical Engineering written by Murat Gokcek and published by BoD – Books on Demand. This book was released on 2012-04-11 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book substantially offers the latest progresses about the important topics of the "Mechanical Engineering" to readers. It includes twenty-eight excellent studies prepared using state-of-art methodologies by professional researchers from different countries. The sections in the book comprise of the following titles: power transmission system, manufacturing processes and system analysis, thermo-fluid systems, simulations and computer applications, and new approaches in mechanical engineering education and organization systems.
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1994 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Rotorcraft Transmission (ART) Program-Boeing Helicopters Status Report by : Joseph W. Lenski (Jr.)
Download or read book Advanced Rotorcraft Transmission (ART) Program-Boeing Helicopters Status Report written by Joseph W. Lenski (Jr.) and published by . This book was released on 1991 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the ... International Power Transmission and Gearing Conference by :
Download or read book Proceedings of the ... International Power Transmission and Gearing Conference written by and published by . This book was released on 1996 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis 31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit by :
Download or read book 31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit written by and published by . This book was released on 1995 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1828 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
