Author(s)

A. Monsallier, F. Lanteri & C. Audoly

Abstract

Application of the boundary element method for analysis of scattering interactions between a sonar receiving array and neighbouring structures A. Monsallier", F. Lanteri* & C. Audoly" "DON Ingenierie/Sud/LSM, B.P. 30, 83800 Toulon Naval, France * ASM Ingenierie, ZE La Farlede, B.P. 240, ABSTRACT The paper is devoted to the theoretical analysis of interactions between a receiving array and a neighbouring structure as well as their consequences on the sonar function. The boundary element method is applied to solve the scattering problem for two bodies. Two configurations are considered: a cylindrical array placed in front of a thin rigid panel, both considered as two-dimensional bodies and the association of a spherical array and a thin soft disc. In both examples, the support of the sensors of the arrays are assumed perfectly rigid. The two-dimensional problem is solved using the Helmholtz integral representation; the three- dimensional scattering problem using the axisymmetr

Keywords