Integrated analysis of engine structures [PDF]
The need for light, durable, fuel efficient, cost effective aircraft requires the development of engine structures which are flexible, made from advaced materials (including composites), resist higher temperatures, maintain tighter clearances and have ...
Chamis, C. C.
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The design/analysis of flows through turbomachinery: A viscous/inviscid approach [PDF]
The development of a design/analysis flow solver at NASA Lewis Research Center is discussed. The solver is axisymmetric and can be run inviscidly with assumed or calculated blockages, or with the viscous terms computed.
Miller, D. P., Reddy, D. R.
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Propeller/fan-pitch feathering apparatus [PDF]
, 1990 A pitch feathering system for a gas turbine driven aircraft propeller having multiple variable pitch blades utilizes a counter-weight linked to the blades. The weight is constrained to move, when effecting a pitch change, only in a radial plane and about
Adamson, Arthur P. +3 more
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Analysis and test evaluation of the dynamic response and stability of three advanced turboprop models [PDF]
Results of dynamic response and stability wind tunnel tests of three 62.2 cm (24.5 in) diameter models of the Prop-Fan, advanced turboprop, are presented.
Arseneaux, P. J. +4 more
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Trends in aeropropulsion research and their impact on engineering education [PDF]
This presentation is concerned with the trends in aeropropulsion both in the U.S. and abroad and the impact of these trends on the educational process in our universities.
Glassman, Arthur J. +2 more
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Towards virtual testing of compression systems in gas turbine engines [PDF]
, 2011 Current trends in the computational fluid dynamics (CFD) analysis of gas turbine engines are in the direction of the so called “virtual testing”. Although this term is used nowadays loosely in the context of this application, the ultimate objective of ...
Sayma, A. I.
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Energy Efficient Engine Program: Technology Benefit/Cost Study, Volume II [PDF]
The Benefit/Cost Study portion of the NASA-sponsored Energy Efficient Engine Component Development and Integration program was successful in achieving its objectives: identification of air transport propulsion system technology requirements for the years
Gardner, W. B., Gray, D. E.
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Design and evaluation of an integrated Quiet, Clean General Aviation Turbofan (QCGAT) engine and aircraft propulsion system [PDF]
The design was based on the LTS-101 engine family for the core engine. A high bypass fan design (BPR=9.4) was incorporated to provide reduced fuel consumption for the design mission. All acoustic and pollutant emissions goals were achieved.
Fogel, P., German, J., Wilson, C.
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Large-scale Advanced Prop-fan (LAP) high speed wind tunnel test report [PDF]
High Speed Wind Tunnel testing of the SR-7L Large Scale Advanced Prop-Fan (LAP) is reported. The LAP is a 2.74 meter (9.0 ft) diameter, 8-bladed tractor type rated for 4475 KW (6000 SHP) at 1698 rpm. It was designated and built by Hamilton Standard under
Arseneaux, Peter J. +2 more
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TF34 engine compression system computer study [PDF]
The stability of the fan and the compressor components was examined individually using linearized and time dependent, one dimensional stability analysis techniques.
Hosny, W. M., Steenken, W. G.
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