Boundary Integral Equation Methods for Screen Problems in Acoustic and Electromagnetic Aerospace Research.

摘要

The paper describes the application of boundary integral equation methods to solve two problems in acoustic and electromagnetic aerospace research. The first problem is concerned with the structural-acoustic analysis of solar arrays for satellites. This analysis involves the solution of a boundary integral equation for determining the acoustic pressure jump across the solar panels. The solar panels are geometrically modeled as screens (i.e. open surfaces in three dimensional space). The second problem is related to the radar cross section prediction of engine inlets of fighter aircraft. The prediction requires the calculation of scattered electromagnetic field when the inlet is illuminated by a radar beam. Engine inlets are modeled as three dimensional perfectly conducting cavity-like screens. The scattered electric field is obtained by solving the Electric Field Integral Equation.