Model predictive control for current balancing in a four-phase buck converter [PDF]
, 2016 Multiphase buck topology offers smaller ripple current and lower component ratings. This, however, compromises unbalanced output current between each phase of an inductor which leads to over-current and inductor saturation issues.
A. F. Yahaya, Jabbar, Mansor, Muhamad
core
Space Shuttle Orbiter thermal protection system design and flight experience [PDF]
The Space Shuttle Orbiter Thermal Protection System materials, design approaches associated with each material, and the operational performance experienced during fifty-five successful flights are described.
Curry, Donald M.
core +1 more source
NASA Langley Research Center National Aero-Space Plane Mission simulation profile sets [PDF]
To provide information on the potential for long life service of oxidation resistant carbon-carbon (ORCC) materials in the National Aero-Space Plane (NASP) airframe environment, NASP ascent, entry, and cruise trajectories were analytically flown ...
Bresina, John J. +2 more
core +1 more source
Development of a co-cured composite torque shaft for rudder of high speed aircraft [PDF]
, 2008 The Carbon Fibre reinforced Composites are widely used in developing various composite parts of civil and13; military aircraft due to its high specific strength and specific stiffness.
Dharmappa, BL +3 more
core +1 more source
A review of the analytical simulation of aircraft crash dynamics [PDF]
A large number of full scale tests of general aviation aircraft, helicopters, and one unique air-to-ground controlled impact of a transport aircraft were performed.
Boitnott, Richard L. +3 more
core +1 more source
Modeling and analysis of the space shuttle nose-gear tire with semianalytic finite elements [PDF]
A computational procedure is presented for the geometrically nonlinear analysis of aircraft tires. The Space Shuttle Orbiter nose gear tire was modeled by using a two-dimensional laminated anisotropic shell theory with the effects of variation in ...
Kim, Kyun O. +2 more
core +1 more source
, 2012 The composition of ions plays a crucial role for the fundamental plasma properties in the terrestrial magnetosphere. We investigate the oxygen-to-hydrogen ratio in the near-Earth magnetosphere from -10 RE274 keV O+ ion intensities, relative to the ...
Daly, Patrick W. +6 more
core +1 more source
Filler bar heating due to stepped tiles in the shuttle orbiter thermal protection system [PDF]
, 1983 An analytical study was performed to investigate the excessive heating in the tile to tile gaps of the Shuttle Orbiter Thermal Protection System due to stepped tiles.
Edwards, C. L. W. +4 more
core +1 more source
Tunnel gradients and aural health criterion for train passengers [PDF]
, 2014 Alan Vardy +9 more
core +2 more sources
Evaluation of high pressure water blast with rotating spray bar for removing paint and rubber deposits from airport runways, and review of runway slipperiness problems created by rubber contamination [PDF]
A high pressure water blast with rotating spray bar treatment for removing paint and rubber deposits from airport runways is studied. The results of the evaluation suggest that the treatment is very effective in removing above surface paint and rubber ...
Griswold, G. D., Horne, W. B.
core +1 more source