Results 61 to 70 of about 1,536 (172)
The Method of Restoring Lost Information from Sensors Based on Auto-Associative Neural Networks
Applied System InnovationThe research aims to develop a neural network-based lost information restoration method when the complex nonlinear technical object (using the example of helicopter turboshaft engines) sensors fail during operation.
Serhii Vladov +4 more
doaj +1 more source
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
core +1 more source
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
core +1 more source
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.
core +1 more source
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
core +1 more source
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
core +1 more source
Variable-speed tail rotors for helicopters with variable-speed main rotors [PDF]
, 2017 Variable tail rotor speed is investigated as a method for reducing tail rotor power, and improving helicopter performance. A helicopter model able to predict the main rotor and tail rotor powers is presented, and the flight test data of the UH-60A ...
Barakos, G.N., Han, D.
core +1 more source
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.
core +1 more source
Test stand performance of a convertible engine for advanced V/STOL and rotorcraft propulsion [PDF]
A variable inlet guide vane (VIGV) convertible engine that could be used to power future high-speed V/STOL and rotorcraft was tested on an outdoor stand.
Mcardle, Jack G.
core +1 more source
The market and the future of gas turbine engines for super heavy transport helicopters
Авіаційно-космічна техніка та технологіяThe introductory part of the article provides brief information about the main activity of Element JSC – the development and production of electronic control systems for aircraft engines, in particular, the RDC-450M ECU family for turboshaft gas turbine ...
Vadym Nerubaskyi
doaj +1 more source