A MATHEMATICAL MODEL DEFINING THE ACOUSTIC RADIATION FIELD GENERATED BY SPACIALLY DISTRIBUTED FORCE INPUTS TO THE HULL OF A SHIP.
Research and development rept.
NAVY MARINE ENGINEERING LAB ANNAPOLIS MD
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To find simplified expressions for the radiation patterns of complex submerged vibrating bodies, such as submarines, a methematical model was constituted. It defines the acoustic radiation field generated by the energy sources. An array of point sources on an infinitely long cylindrical baffle replaces the internal energy sources. Sufficiently simple approximate expressions for radiated energy are obtained so that theory and experiments can be compared numerically in a fairly uncomplicated fashion, since the required pattern computations are easily programmed. If these results are not satisfactory then the only other road open appears to be to treat the finite cylinder and eventually the elastic case. Author
- Marine Engineering