Monte carlo application for developing a design reliability goal compatible with small sample requirements
Monte Carlo method for developing design reliability goal compatible with small sample requirements
MONTE CARLO METHOD↗
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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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Development and application of basic analytical principles for materials and design synthesis to advanced concepts for space and launch vehicles quarterly progress report, mar. 23 - jun. 23, 1964
Energy absorbing structures and materials for spacecraft landing system, shell buckling problems, and use of high strength, low ductility materials in pressure vessels
PRESSURE VESSEL↗
Launch vehicle optimization, phase II. VOLUME I - Concept development and application Final report
Performance, reliability, and economics simulation techniques for optimization of launch vehicle problem - program management
LAUNCH VEHICLE↗
Development and application of a photoelasto- plastic method to study stress distributions in vicinity of a simulated crack
Photoelasto-plastic method for studying stress distributions in vicinity of simulated crack
PLASTIC MATERIAL↗
Development and application of computer software techniques to human factors task data handling problems Final report, 21 Jun. 1965 - 21 Jun. 1966
Computer software techniques applied to human factors task data handling problems
HUMAN FACTOR↗
Vibration study of a pressurized torus shell. Part II - Development and applications of analysis
Analytical data on free vibrations of pressurized prestressed toroidal shell applied to simple toroidal shell structure models
PRESTRESSING↗
Development and application of a system model for spacecraft sterilization Final report
Mathematical model for analyzing spacecraft sterilization requirements for planetary quarantine
Source record↗
The development and application of plethysmographic and isotopic methods for studying the relationship between intrinsic autoregulation of blood flow and the partition of intercompartmental fluid volumes in skeletal muscle
Intrinsic mechanism in gracilis muscle for autoregulation of blood flow
Alexander, W. C.↗
Development and application of a spark source for multiply charged carbon ions
Triggered spark source for multiply charged carbon ions applied to collision cross section measurements
Koopman, D. W.↗
Development and application of a star-mapping technique to the attitude determination of the spin-stabilized Project Scanner spacecraft
Spin stabilized Project Scanner spacecraft attitude determination by star mapping technique, describing optics, photomultiplier, reticle, electronics and sun shield
Hinton, D. E.↗
Development and application of an instrument for the measurement of directional emittance of blackbody cavities
Reflectance measurements of directional spectral emittance of black body cavities with specific geometries, using laser source and integrating hemi-ellipsoid
Heinisch, R. P.↗
Digital tape unit test facility development and applications
Test facility and computer programs for control of digital tape drive functions
Webb, W. C.↗
Developments and applications of real-time high resolution mass spectrometry
Real time high resolution mass spectroscopy using digital computer techniques for data acquisition, processing and presentation
Burlingame, A. L.↗
Development and application of a method for predicting rotor free wake positions and resulting rotor blade air loads. Volume 2: Program listings
Computer program listings are presented for two separate programs: the wake geometry 1 blade loads and response. These listings correspond to the calculations discussed previously.
Sadler, S. G.↗
Development and application of a method for predicting rotor free wake positions and resulting rotor blade air loads. Volume 1: Model and results
Rotor wake geometries are predicted by a process similar to the startup of a rotor in a free stream. An array of discrete trailing and shed vortices is generated with vortex strengths corresponding to stepwise radial and azimuthal blade circulations. The array of shed and trailing vortices is limited to an arbitrary number of azimuthal steps behind each blade. The remainder of the wake model of each blade is an arbitrary number of trailing vortices. Vortex element end points were allowed to be transported by the resultant velocity of the free stream and vortex-induced velocities. Wake geometry, wake flow, and wake-induced velocity influence coefficients are generated by this program for use in the blade loads portion of the calculations. Blade loads computations include the effects of nonuniform inflow due to a free wake, nonlinear airfoil characteristics, and response of flexible blades to the applied loads. Computed wake flows and blade loads are compared with experimentally measured data. Predicted blade loads, response and shears and moments are obtained for a model rotor system having two independent rotors. The effects of advance ratio, vertical separation of rotors, different blade radius ratios, and different azimuthal spacing of the blades of one rotor with respect to the other are investigated.
Sadler, S. G.↗
Development and applications of supersonic unsteady consistent aerodynamics for interfering parallel wings: User's manual
The input data required to execute the computer program AIC/INT (aerodynamic influence coefficients with interference) are presented. The purpose of the computer program is to generate aerodynamic forces for a pair of plane and interfering nearly parallel, non-coplanar wings at supersonic Mach numbers. A finite element technique has been employed. Planforms are described by triangular elements and diaphragm regions are generated automatically.
Paine, A. A.↗
Development and applications of supersonic unsteady consistent aerodynamics for intering parallel wings: Programmer's manual
The computer program written in support of the problem to determine aerodynamic influence coefficients on parallel interfering wings is described. The information is geared to the programmer. It is sufficient to describe the program logic and the required peripheral storage.
Paine, A. A.↗
Development and application of vibroacoustic structural data banks in predicting vibration design and test criteria for rocket vehicle structures
A method of predicting broadband random vibration criteria for components on space vehicles is presented. Large amounts of vibration and acoustic data obtained from flights and static firing tests of space vehicle were formulated into vibroacoustic data banks for structural categories of ring frame, skin stringer, and honeycomb. The vibration spectra with their associated acoustic spectra are normalized to a reference acoustic spectrum. The individual normalized spectra are grouped according to definite structural characteristics and statistically analyzed to form the vibroacoustic data banks described in this report. These data banks represent the reference vibration criteria available for determining the new vehicle vibration criteria.
Bandgren, H. J.↗