A Green's function approach to the natural vibration of thin spherical shell segments - A numerical method Final report
Green function approach to natural vibration of thin spherical shell segments
Avery, J. P.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Performance of a 48-module swirl-can turbojet combustor segment at high temperatures using ASTM-A1 fuel
Performance of turbojet swirl module combustor segment at high temperatures
Moyer, H. M.↗
High-temperature, high-pressure spherical segment valve Patent
High-temperature, high-pressure spherical segment valve
Giovannetti, A., Jr.↗
Weight, volume, and center of mass of segments of the human body
Weight, volume, and center of mass of segments of human body
Clauser, C. E.↗
Segmented back-up bar Patent
Segmented back-up bar for butt welding large tubular structures such as rocket booster bodies or tanks
Franklin, W. J.↗
Engineering estimates for supersonic flutter of curved shell segments
Cylindrical shell segments supersonic flutter boundaries engineering estimates related to Saturn 5 booster, obtaining thickness requirement as function of panel geometry
Anderson, W. J.↗
Cast segment evaluation
Evaluation program to determine feasibility of fabricating segmented rocket engine thrust chambers using low cost, lightweight castings extends state of the art in areas of casting size and complexity, and in ability to provide thin sections and narrow, deep, cooling channels. Related developments are discussed.
Diem, H. G.↗
Quadrupole segmented rod study
Use of segmented rods in operation of quadrupole mass spectrometer
Source record↗
Segmenting lead telluride-silicon germanium thermoelements Patent
Procedure for segmenting lead telluride and silicon germanium thermoelectric elements to obtain composite elements effective over wide temperature range
Bates, H. E.↗
An on-board spacecraft optical data processing system using paraboloidal mirror segments and a gallium arsenide laser
Onboard spacecraft optical data processing system using paraboloidal mirror segments and gallium arsenide laser
Abidi, A. S. H.↗
Performance of a short modular turbojet combustor segment using ASTM-A1 fuel
Performance of short modular turbojet combustor segment with ASTM-A1 fuel
Moyer, H. M.↗
Calculation of tables of inverses and determinants of finite segments of the Hilbert matrix
Calculating tables of inverses and determinants of finite segments of Hilbert matrices using variable precision rational arithmetic
Cuthill, E.↗
Real time statistical time series analyzer for speech segmentation
Real time statistical time series analyzer for speech segmentation
Stewart, C. H.↗
Fourier transformable properties of paraboloidal mirror segments
Fourier transformable properties of paraboloidal mirror segments also experimental results of spatial filtering
Husain-Abidi, A. S.↗
Segmented superconducting magnet for a broadband traveling wave maser Patent
Segmented superconducting magnet producing staggered magnetic field and suitable for broadband traveling wave masers
Deluca, J. J.↗
Quadrupole segmented rod study
Sensitivity of quadrupole mass spectrometer with segmented rod geometry
Ierokomos, N.↗
Aerodynamic characteristics of the Grumman H-33 orbiter mated to a three segment solid propellant booster
Experimental aerodynamic investigations were conducted on a .003366-scale model of the Grumman space shuttle configuration mounted to a three (3) segmented solid propellant booster. These tests were conducted in the MSFC 14-inch trisonic wind tunnel over a Mach number range of 0.6 to 4.96. The purpose of the test was to determine the aerodynamic characteristics of this configuration. Aerodynamic data was taken over a nominal angle of attack and angle of sideslip of -10 degrees to 10 degrees at zero degrees beta and alpha respectively. In addition, data was obtained for the H-33 orbiter alone to supplement data from TWT 502 and TWT 503.
Sims, F.↗
Noise reductions achieved on a 720-023B aircraft using a two-segment approach
A flight investigation to determine the operational feasibility of two-segment approaches as a means for reducing airport community noise has been conducted. The effective perceived noise level (EPNL) associated with these approach profiles, using a 720-023B jet aircraft, has been obtained. The tests were designed to determine an operationally optimum approach profile and to quantify the reduction in noise level at predetermined locations on the ground beneath the flight track. The acoustic aspects of the test program are examined. An analysis of the optimum and reference profiles was made using a group of pilots. Information was also obtained on the types of pilot operational procedures used for the optimum profile.
Glass, R. E.↗