The general computational model of sound radiation from fluid-loaded infinite cylindrical shells with rings,bulkheads and longitudinal stiffeners is set up.By means of Fourier transformation and modal expansion the shell's vibration response and acoustic radiation are formulated,and by using stationary phase method the far-field sound pressure is derived.The influences of number of modal truncation,longi - tudinal stiffeners,bulkheads as well as damping on the shell's acoustic radiation are analyzed.A...