Results 81 to 90 of about 135,451 (244)
Multifunction tests of a frequency domain based flutter suppression system [PDF]
The process is described of analysis, design, digital implementation, and subsonic testing of an active control flutter suppression system for a full span, free-to-roll wind tunnel model of an advanced fighter concept.
Adams, William M., Jr. +1 more
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AerospaceThis study explores the multidisciplinary design optimization (MDO) of the NASA Common Research Model (CRM) wingbox, utilizing both metallic and composite materials while addressing various constraints, including static strength, stiffness ...
Odeh Dababneh +2 more
doaj +1 more source
Evaluation of four subcritical response methods for on-line prediction flutter onset in wind-tunnel tests [PDF]
The methods were evaluated for use in tests where the flutter model is excited solely by airstream turbulence. The methods were: randomdec, power-spectral-density, peak-hold, and cross-spectrum.
Doggett, R. V., Jr. +3 more
core +1 more source
Experimental Methods Applied in a Study of Stall Flutter in an Axial Flow Fan
Shock and Vibration, 2004 Flutter testing is an integral part of aircraft gas turbine engine development. In typical flutter testing blade mounted sensors in the form of strain gages and casing mounted sensors in the form of light probes (NSMS) are used.
John D. Gill +2 more
doaj +1 more source
Flutter suppression digital control law design and testing for the AFW wind-tunnel model [PDF]
Design of a control law for simultaneously suppressing the symmetric and antisymmetric flutter modes of a string mounted fixed-in-roll aeroelastic wind tunnel model is described.
Mukhopadhyay, Vivek
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A Study on the Two-Dimensional Numerical Simulation of Wing Flutter in a Heavy Gas
AerospaceUsing heavy gases in wind tunnel tests can reduce model weight issues, which have intensified with advancements in high-performance aircraft technology. This study employs time-domain analysis to examine the flutter characteristics and correction methods
Zhe Hu, Shun He, Bo Lu, Jun Zha
doaj +1 more source
Discussion: “The Flutter of a Uniform Wing With Tip Weights” (Goland, Martin, and Luke, Y. L., 1948, ASME J. Appl. Mech., 15, pp. 13–20) [PDF]
, 1948 Robert H. Scanlan
openalex +1 more source
Dangerous consequence from use of phenytoin in atrial flutter. [PDF]
, 1967 Joyce Grissom +3 more
openalex +1 more source