RT Journal Article
ID 0c3564534187389c
A1 Galanenko, B. V.
T1 Extension of the Method of Cross Sections to the Problem of Wave Propagation in an Elastic Layer with Smoothly Varying Parameters
JF International Journal of Fluid Mechanics Research
JO FMR
YR 1999
FD 1999-12-01
VO 26
IS 5-6
SP 732
OP 741
AB The method of cross sections, usually employed in investigating liquid acoustic waveguides, is extended to the two-dimensional problem of wave motion of an elastic isotropic layer whose material and shape parameters change smoothly in the direction of wave propagation. The cross section operator, specified on a set four-dimensional vector-valued functions, whose components are the horizontal and vertical displacements, the component of the rotor and the divergence, is defined. Orthogonality equations for the operator's eigenfunctions are obtained and the equations of coupled modes are derived. The eigenvalues of a waveguide in the form of an elastic wedge are investigated.
PB Begell House
LK http://dl.begellhouse.com/journals/71cb29ca5b40f8f8,5e12a65502d5a022,0c3564534187389c.html