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Efficiency testing of a helicopter transmission planetary reduction stageA 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. Test parameters varied were oil flow rate, oil inlet temperature, lubricant type, shaft speed, and applied torque. The measured efficiency over all the test variables ranged from 99.44 to 99.75 percent. These experimental results were compared with other experimental and computational results.
Document ID
19880005842
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Handschuh, Robert F. (NASA Lewis Research Center Cleveland, OH, United States)
Rohn, Douglas A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 5, 2013
Publication Date
February 1, 1988
Subject Category
Mechanical Engineering
Report/Patent Number
AD-A191884
NAS 1.60:2795
E-3770
AVSCOM-TR-87-C-28
NASA-TP-2795
Report Number: AD-A191884
Report Number: NAS 1.60:2795
Report Number: E-3770
Report Number: AVSCOM-TR-87-C-28
Report Number: NASA-TP-2795
Accession Number
88N15224
Funding Number(s)
PROJECT: DA PROJ. 1L1-61102-AH-45
PROJECT: RTOP 505-63-51
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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