Noise Transmission from Diesel Generator Set to Cabins on Research and Training VesselBOSEI MARUof Tokai University

In the ship hull structurethere are a lot of noise sources such as propulsion enginesdiesel generatorspumps and air conditioning machineryetc.Noise generated by these sources propagates through the decks and bulkheads in the hull structureand becomes noise in compartments such as cabins and workrooms.It is necessary to predict the noise levels and determine appropriate noise control approaches in order to reduce the noise levels in compart‑ ments. However in order to get accurate results for noise prediction an effective prediction model is needed. Therefore noise transmission characteristics from various sources and source levels must be obtained properly. This paper describes the noise transmission characteristics from the sources to the cabins when the one diesel