STRUCTURE-BORNE SOUND TRANSMISSION ALONG PIPING ON SHIPS

Abstract

In ships, the pipe structure represents very complex system of noise and vibration with under effect of by the engine, compensator and specific pipe components. Structure borne noise can cause discomfort to passengers and hearing damage to the crew and in this regard the need for a safe work environment is growing. Due to these effects, noise and vibration analysis must be studied and adequately monitored during the design stage. In this thesis, various possible pipe structures are discussed with the norms of noise and vibration for ships concerning the machinery. The objective of this thesis was to assemble knowledge and experience in the area of piping vibration measurements and study in some depth what are the best practices to perform the measurements. Analysis are made a carefully with consultancy of DW-ShipConsult, a German vibration and noise consulting company and few recommendations are made for the future structure borne noise studies.