This　paper　presents　the　vibroacoustic　analysis　of　a　uniform　beam　submerged　in　the　compressible　fluid.　The　sound　radiated　from　the　beam　is　formulated　by　means　of　the　composite　Green　function　method.　In　this　approach,　the　sound　pressures　on　the　beam　surface　and　the　velocities　of　the　beam　are　modeled　by　using　two　integral　equations　of　which　the　kernel　functions　are　the　composite　Green　functions　symmetrical　to　each　other.　Furthermore,　the　near　field　and　far　field　sound　radiation　of　the　beam　could　be　predicted　based　on　the　free　space　Green　function.　An　eigenequation　of　the　coupled　system　is　also　derived.　Numerical　results　of　the　vibroacoustic　system　are　given　and　verified　by　the　power　flow　method,　and　the　good　agreements　show　that　the　study　work　in　the　paper　is　correct.　(c)　2006　Elsevier　Ltd.　All　rights　reserved.