Results 171 to 180 of about 17,951 (234)
On the relevance of facesheet orifice geometry to acoustic liner impedance. [PDF]
NPJ AcoustAvallone F +5 more
europepmc +1 more source
An Adaptive Framework for Remaining Useful Life Prediction Integrating Attention Mechanism and Deep Reinforcement Learning. [PDF]
Sensors (Basel)Bai Y +8 more
europepmc +1 more source
Improved sand cat swarm optimization algorithm assisted GraphSAGE-GRU for remaining useful life of engine. [PDF]
Sci RepYuan Y, Li R, Wang G, Lv X.
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Noise considerations in the design and operation of V/STOL aircraft [PDF]
Hilton, D. A. +2 more
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LPV MODELING OF A TURBOFAN ENGINE
IFAC Postprint Volumes IPPV / International Federation of Automatic Control, 2005Abstract This article describes the application of quasi-LPV modeling techniques to an industrial military turbofan engine simulator developed by Snecma Moteurs, the French aerospace propulsion company. Two approaches are used, classical Jacobian linearization and velocity based linearization. First, we present briefly the theoretical aspects of both
Didier Henrion
exaly +2 more sources
2021
In the last chapter, the turbojet engine was discussed in detail. Historically, commercial aviation began toward the end of World War II with propeller-driven planes. It soon became apparent that the flight speeds of the propeller planes were limited to low subsonic values. The use of the gas turbine engine in combination with a propulsion nozzle, i.e.,
openaire +1 more source
In the last chapter, the turbojet engine was discussed in detail. Historically, commercial aviation began toward the end of World War II with propeller-driven planes. It soon became apparent that the flight speeds of the propeller planes were limited to low subsonic values. The use of the gas turbine engine in combination with a propulsion nozzle, i.e.,
openaire +1 more source
Applied Mechanics and Materials, 2012
Looking into the future of aviation for commercial aircrafts there are various viable options for engine and associated propulsion technologies. The team had to eliminate some of the possible solutions. Superconducting electric motors were alleviated considering weight factors and lack of technology readiness to fly long range commercial jets.
Sarnavi Mahesh, Pate Sweety Prakash
openaire +1 more source
Looking into the future of aviation for commercial aircrafts there are various viable options for engine and associated propulsion technologies. The team had to eliminate some of the possible solutions. Superconducting electric motors were alleviated considering weight factors and lack of technology readiness to fly long range commercial jets.
Sarnavi Mahesh, Pate Sweety Prakash
openaire +1 more source
Aircraft Engineering and Aerospace Technology, 1989
PROGRESS in the development of turbofan engines for civil and military applications has enabled requirements from around 5,000lb to over 70,000lb thrust to be satisfied or anticipated, with prospects for this range to be extended. The three major powerplant manufacturers (RollsâRoyce, General Electric and Pratt & Whitney) are engaged in fiercely ...
openaire +1 more source
PROGRESS in the development of turbofan engines for civil and military applications has enabled requirements from around 5,000lb to over 70,000lb thrust to be satisfied or anticipated, with prospects for this range to be extended. The three major powerplant manufacturers (RollsâRoyce, General Electric and Pratt & Whitney) are engaged in fiercely ...
openaire +1 more source
Far-field calculations for turbofan noise
AIAA Journal, 2001The development of variable-order mapped infinite wave envelope elements for finite element modeling of acoustic radiation from turbofan nacelles is reviewed. These elements can be used outside of the near field as a nonreflecting boundary condition and as a finite-dimensional discretization of the infinite exterior domain for calculation of far-field ...
Indranil Danda Roy, Walter Eversman
openaire +1 more source