Results 81 to 90 of about 2,655 (199)

Sensor failure detection for jet engines using analytical redundance [PDF]

open access: yes
Analytical redundant sensor failure detection, isolation and accommodation techniques for gas turbine engines are surveyed. Both the theoretical technology base and demonstrated concepts are discussed.
Merrill, W. C.
core   +1 more source

Index to 1981 NASA Tech Briefs, volume 6, numbers 1-4 [PDF]

open access: yes, 1986
Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage ...

core   +1 more source

Variability in airplane noise measurements [PDF]

open access: yes
Aircraft position and meteorological effects on accuracy of acoustic measurements for turbojet ...
Henderson, H. R., Hilton, D. A.
core   +1 more source

Advanced materials research for long-haul aircraft turbine engines [PDF]

open access: yes, 1978
The status of research efforts to apply low to intermediate temperature composite materials and advanced high temperature materials to engine components is reviewed.
Blankenship, C. P., Signorelli, R. A.
core   +1 more source

A Novel Curve-and-Surface Fitting-Based Extrapolation Method for Sub-Idle Component Characteristics of Aeroengines

open access: yesAerospace
The component characteristics of an aeroengine below idle speed are fundamental for start-up process simulations. However, due to experimental limitations, these characteristics must be extrapolated from data above idle speed.
Yibo Cui   +4 more
doaj   +1 more source

Effects of forward velocity on noise for a J85 turbojet engine with multitube suppressor from wind tunnel and flight tests [PDF]

open access: yes
Flight and wind tunnel noise tests were conducted using a J85 turbojet engine as a part of comprehensive programs to obtain an understanding of forward velocity effects on jet exhaust noise.
Miles, J. H.   +2 more
core   +1 more source

DBO-CNN-BiLSTM: Dung Beetle Optimization Algorithm-Based Thrust Estimation for Micro-Aero Engine

open access: yesAerospace
Thrust constitutes a pivotal performance parameter for aircraft engines. Thrust, being an indispensable parameter in control systems, has garnered significant attention, prompting numerous scholars to propose various methods and algorithms for its ...
Baijun Lei   +4 more
doaj   +1 more source

Increasing returns and network structure in the evolutionary dynamics of industries [PDF]

open access: yes
The paper explores the idea that properties at the level of firms coevolve with more aggregate properties at the level of market institutions in the dynamics of industries.
Andrea Bonaccorsi, Paola Giuri
core  

Multi-Disciplinary Optimization of Mixed-Flow Turbine for Additive Manufacturing

open access: yesInternational Journal of Turbomachinery, Propulsion and Power
Additive manufacturing offers new perspectives for creating complex geometries with improved design features at lower cost and with reduced manufacturing time.
Victor Loir   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy