Results 101 to 110 of about 3,568 (253)

Research on the Impact of the Sand and Dust Ingestion Test on the Overall Performance of Turboshaft Engines

open access: yesAerospace
Based on GJB 242A, a detailed experimental procedure for the sand and dust ingestion of a turboshaft engine was established. A specific type of turboshaft engine was used to conduct 54 h full-engine sand and dust ingestion experiments.
Qingping Wang   +5 more
doaj   +1 more source

Comparison of predicted engine core noise with proposed FAA helicopter noise certification requirements [PDF]

open access: yes
Calculated engine core noise levels, based on NASA-Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and proposed FAA helicopter noise certification requirements.
Groesbeck, D. E., Vonglahn, U.
core   +1 more source

Advanced General Aviation Turbine Engine (GATE) concepts [PDF]

open access: yes
Concepts are discussed that project turbine engine cost savings through use of geometrically constrained components designed for low rotational speeds and low stress to permit manufacturing economies.
Lays, E. J., Murray, G. L.
core   +1 more source

H∞ Networked Cascade Control System Design for Turboshaft Engines with Random Packet Dropouts

open access: yesInternational Journal of Aerospace Engineering, 2017
The distributed control architecture becomes more and more important in future gas turbine engine control systems, in which the sensors and actuators will be connected to the controllers via a network.
Xiaofeng Liu, Xu Sun
doaj   +1 more source

Opportunities of waste heat recovery from various sources: Review of technologies and implementation. [PDF]

open access: yesHeliyon, 2023
Ononogbo C   +7 more
europepmc   +1 more source

Research requirements for development of regenerative engines for helicopters [PDF]

open access: yes
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.
core   +1 more source

Helicopter Inside Cabin Acoustic Evaluation: A Case Study-IAR PUMA 330. [PDF]

open access: yesInt J Environ Res Public Health, 2021
Deaconu M   +3 more
europepmc   +1 more source

A real-time, portable, microcomputer-based jet engine simulator [PDF]

open access: yes
Modern piloted flight simulators require detailed models of many aircraft components, such as the airframe, propulsion system, flight deck controls and instrumentation, as well as motion drive and visual display systems.
Blech, R. A.   +2 more
core   +1 more source

The Method of Restoring Lost Information from Sensors Based on Auto-Associative Neural Networks

open access: yesApplied System Innovation
The 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

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