Abstract
Application of the DSISR program to recessed shells of revolution is illustrated on the examples of a cylinder with two diametrically-opposite rectangular cutouts and a sphere with a single trapezoidal cutout. The program which is suitable for a wide range of static and dynamic problems was developed for general linear analysis of shells of revolution with arbitrary stiffness and mass density distributions. In the analysis, the equations of motion are derived with the aid of Sanders' theory, and the numerical solution procedure is based on Fourier expansion in the circumferential direction, on finite differences in the meridional direction, and on Houbolt's method in the time domain.
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