Civil applications of high-speed rotorcraft and powered-lift aircraft configurations [PDF]
Advanced subsonic vertical and short takeoff and landing (V/STOL) aircraft configurations offer new transportation options for civil applications.
Albers, James A., Zuk, John
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Coaxial Compound Helicopter for Confined Urban Operations [PDF]
A rotorcraft was designed for military operations in a confined urban environment. The specifications included major increases in useful load, range, and speed relative current aircraft capabilities, with a size constraint based on the dimensions of ...
Elmore, Joshua F. +4 more
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Some NASA contributions to human factors engineering: A survey [PDF]
This survey presents the NASA contributions to the state of the art of human factors engineering, and indicates that these contributions have a variety of applications to nonaerospace activities.
Behan, R. A., Wendhausen, H. W.
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Gradient Printing Alginate Herero Gel Microspheres for Three-Dimensional Cell Culture. [PDF]
Materials (Basel), 2022 Gong Y +6 more
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Hydrodynamic air lubricated compliant surface bearing for an automotive gas turbine engine. 1: Journal bearing performance [PDF]
A 38.1 mm (1.5 inch) diameter Hydresil Compliant Surface Air Lubricated Journal Bearing was designed and tested to obtain bearing performance characteristics at both room temperature and 315 C (600 F). Testing was performed at various speeds up to 60,000
Gray, S., Mccormick, J., Ruscitto, D.
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Acoustic measurements of a full-scale coaxial hingeless rotor helicopter [PDF]
Acoustic data were obtained during a full-scale test of the XH-59A Advancing Blade Concept Technology Demonstrator in the 40- by 80-Foot Wind Tunnel. The XH-59A is a research helicopter with two coaxial rotors and hingeless blades. Performance, vibration,
Mosher, M., Peterson, R. L.
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Coaxial Rotor Flow Phenomena in Forward Flight [PDF]
Coaxial rotors are nding use in advanced rotorcraft concepts. Combined with lift offset rotor technology, they offer a solution to the problems of dynamic stall and re-verse ow that often limit single rotor edgewise forward ight speeds.
Barbely, Natasha Lydia +1 more
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Development and Analysis of Multi-Degree-of-Freedom Piezoelectric Actuator Based on Elephant Trunk Structure. [PDF]
Sensors (Basel), 2023 Li Z +5 more
europepmc +1 more source
A Torque Motor Servorotator for Vestibular Application [PDF]
Torque motor servorotator for vestibular ...
Hixson, W. C., Niven, J. I.
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