Research on Noise Control Method of High-Speed Ship

摘要

In this paper, on the basis of the study of elastic wave propagation in the ship bulk structures, the vibration power flow in the L-shape plate is investigated. And the effect of damping material on the input and output power flow is analyzed. These can give a theoretical guide to how to lay damping material in the noise control. At last, noise of two monohull high-speed passage ships are measured and compared to test our analysis results. The conclusion of this experiment proves that laying damping material reasonably can greatly reduce the structure-borne noise of high-speed ship.