Structure-borne noise transmission through ship stanchions

Stanchions provide a path for structure-borne noise transmission from a noise source space on one level to noise sensitive spaces on another level in commercial and combatant surface ships. Measurements of structure-borne noise from one level to an adjacent level were made with and without a stanchion in place in the laboratory full-scale model of ship compartments at Hopeman Brothers. Measured data of the structure-borne noise transmission loss across the stanchion and the difference in the airborne sound power levels radiated into the compartments with and without the stanchion in place are presented. Results of statistical energy analysis (SEA) are compared to measured data. Methods for reducing structure-borne noise transmission through stanchions are suggested.