Results 51 to 60 of about 1,393 (153)
Multi-variable control of the GE T700 engine using the LQG/LTR design methodology [PDF]
, 1986 "Proceeding American Control Conference, Seattle, WA, June 1986."Bibliography: p. 8.Research supported by General Electric Company. NASA Ames and Langley Research Centers grant NASA NAG2-297William H. Pfeil, Michael Athans, H.
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Research requirements for development of regenerative engines for helicopters [PDF]
The improved specific fuel consumption of the regenerative engine was compared to a simple-cycle turboshaft engine. The performance improvement and fuel saving are obtained at the expense of increased engine weight, development and production costs, and ...
Semple, R. D.
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Thermodynamic Optimization and Energy-Exergy Analyses of the Turboshaft Helicopter Engine
International Journal of ThermodynamicsEnergy demand is a critical contemporary concern, with significant implications for the future. While exploring renewable or sustainable energy sources offers potential solutions, optimizing energy consumption in existing power generation systems is also key.
Mehdi Siyahi +3 more
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Study of an advanced General Aviation Turbine Engine (GATE) [PDF]
The best technology program for a small, economically viable gas turbine engine applicable to the general aviation helicopter and aircraft market for 1985-1990 was studied.
Curry, C. E. +7 more
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A Sequential Shifting Algorithm for Variable Rotor Speed Control [PDF]
, 2007 A proof of concept of a continuously variable rotor speed control methodology for rotorcraft is described. Variable rotor speed is desirable for several reasons including improved maneuverability, agility, and noise reduction.
DeCastro, Jonathan A. +2 more
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Rotorcraft convertible engine study [PDF]
The objective of the Rotorcraft Convertible Engine Study was to define future research and technology effort required for commercial development by 1988 of convertible fan/shaft gas turbine engines for unconventional rotorcraft transports. Two rotorcraft
Earle, R. V., Gill, J. C., Mar, H. M.
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Army/NASA small turboshaft engine digital controls research program [PDF]
The emphasis of a program to conduct digital controls research for small turboshaft engines is on engine test evaluation of advanced control logic using a flexible microprocessor based digital control system designed specifically for research on advanced
Baez, A. N., Sellers, J. F.
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Радіоелектронні і комп'ютерні системиThe subject of this paper is to develop a method for synthesizing stable neural network controllers with optimization of transient process parameters. The goal is to develop a method for synthesizing a neural network controller for control systems that ...
Serhii Vladov +5 more
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A simplified dynamic model of the T700 turboshaft engine [PDF]
A simplified open-loop dynamic model of the T700 turboshaft engine, valid within the normal operating range of the engine, is developed. This model is obtained by linking linear state space models obtained at different engine operating points.
Duyar, Ahmet +2 more
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A Quiet Helicopter for Air Taxi Operations [PDF]
NASA is exploring rotorcraft designs for VTOL air taxi operations, also known as urban air mobility (UAM) or on-demand mobility (ODM) applications. Several concept vehicles have been developed, intended to focus and guide NASA research activities in ...
Johnson, Wayne
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