Matthew Conti
Ira Dyer
Dept. of Ocean Eng., MIT, 77 Massachusetts Ave., Cambridge, MA 02139
Internal structures can significantly modify the scattered field of an
elastic shell. The influence of such internal structures within a cylindrical
shell are shown to change the backscattered time-domain signal at or near axial
incidence. To further elucidate this influence, bistatic measurements have been
performed on two cylindrical shell models: an empty shell and a duplicate shell
with unequally spaced ribs with resiliently mounted wave-bearing structures. A
line source provided wideband excitation in the range 2.5