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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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Stability of liquid layer of uniform thickness spread over rigid circular cylinder subjected to lateral accelerations
Compression testing of low density rigid polyurethane foam for S-1DC flight vehicles
Lower bounds to energy eigenvalues for rigid rotator in electric field Stark effect calculation - Schroedinger equation
Design considerations for spin stabilized satellites with rigid expandable structures
Processes for fabrication in space environment of five-foot diameter inflatable rigidized solar energy concentrators
Effects of radiation in vacuum on mechanical properties of rigid plastics
Harmonic and superharmonic liquid surface motions observed for longitudinally excited rigid cylindrical tank
Harmonic and superharmonic liquid surface motions observed for longitudinally excited rigid cylindrical tank
Primary spectrum modulation during recent solar cycle for rigidities between 4 and 12 billion volts from 4 neutron monitors, considering existence of hysteresis
Ceramic foam as lightweight thermal insulation for rigid heat shields in launch vehicles
Stress and shear deformation analysis for simple symmetric elastic shells in contact with rigid flat surface
Rigid motion in Einstein space-time using dyadic formulation of general relativity
Saturn I buffeting response data determined from rigid model wind tunnel tests - aerodynamic stability and aeroelasticity
Lightweight rigid photovoltaic solar panel
Evaluation of absolute free energy of rigid-disk system at very high compression
Upper and lower bounds have been calculated for the energy levels of a rigid rotator in an electric field, in order to study the problems associated with the use of the partitioning method for bracketing an eigenvalue of the Schrödinger equation. Results of arbitrarily high accuracy are possible in this example.
Control system eliminates or reduces flexibility effects on the manual and automatic control of large flexible vehicles. It extracts rigid-body and flexible-body motion and adapts well when a flexible-body frequency coincides or nearly coincides with the control mode frequency.
Effectiveness of lightweight flexible and rigid ring baffles for damping liquid oscillations in large scale cylindrical tanks