Now showing items 1-4 of 4
Asymptotic Solutions Of Second-Order Linear Equations with 3 Transition Points
(AIP Publishing, 1974-12-01)
A uniformly valid asymptotic expansion is obtained for the regular solution of a class of second_order linear differential equations with three transition points_a turning point and two regular singular points. The solution ...
A geometric acoustics approach to the study of sound propagation in ducts containing sheared flows
(Acoustical Society of America, 1979-12-01)
Geometric acoustics has been used to study the propagation of sound waves in a homogeneous moving medium with sheared flow bounded by the hard walls of a duct. Differential equations describing the ray trajectories and the ...
Numerical-perturbation technique for the transverse vibrations of highly prestressed plates
(Acoustical Society of America, 1977-01-01)
Under the usual assumptions of small strains with moderately large rotations, the problem of the transverse vibrations of highly prestressed, nonuniform annular plates is reduced to the solution of the differential equation ...
Simulation of multicorrelated random processes using the FFT algorithm
(Acoustical Society of America, 1975)
A technique for the digital simulation of multicorrelated Gaussian random processes is described. This technique is based upon generating discrete frequency functions which correspond to the Fourier transform of the desired ...