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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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Axisymmetric thermal deformations of paraboloid mirrors, due to heating, are examined for a mirror with a optical axis oriented toward the Sun. A governing differential equation is derived using Mushtari-Donnel-Vlasov simplifications, and a solution is presented which makes it possible to determine the principal deformation characteristics.
The use is described of a successful large-signal, two-dimensional (axisymmetric), deformable disk computer model of the helical traveling wave tube amplifier, an extensively revised and operationally simplified version. We also discuss program input and output and the auxiliary files necessary for operation. Included is a sample problem and its input data and output results. Interested parties may now obtain from the author the FORTRAN source code, auxiliary files, and sample input data on a standard floppy diskette, the contents of which are described herein.
Equilibrium equations and successive approximation methods for solving axisymmetric elastic deformation of shallow spherical segment
Effect of axisymmetric impact against water on shallow clamped aluminum spherical shell-type caps
Small deformations for stress-strain relationship of axisymmetric nonlinear elastic plate with reinforced hole
Effect of load area on deformation of clamped spherical cap and behavior of transition from axisymmetric to asymmetric deflection shapes
Incremental analysis of large deformations in continuum mechanics with applications to axisymmetric shells of revolution
Axially symmetric dynamic response solutions for cylinders subjected to pressure transients arising in propulsion systems
Exact solution of axisymmetrical bending equations for thin, spherical shells expressed as power series
Instability of infinite length cylindrical shell subjected to axisymmetric loads
Dynamic axisymmetric buckling of shallow conical shells subjected to impulsive loads
Dynamic axisymmetric buckling of shallow conical shells subjected to impulsive loads
Axisymmetric thermal stresses in sandwich shells of revolution with application to shallow spherical shells
Donnell-type nonlinear theory for instability of cylindrical shell subjected to axisymmetric moving loads with constant velocity
Hollow metallic O rings used for sealing as thin shells under axisymmetric loading
Donnell-type nonlinear theory for instability of cylindrical shell subjected to axisymmetric moving loads with constant velocity
Steady state axisymmetric thermoelastic problems in bispherical coordinate system
Evaluation of stored-energy function for elastomeric materials based on biaxial experiments