Vibration test and control analysis of a high-speed passenger ship
Ship vibration will not only affect the comfort of living,but also cause structural damage to the ship.In order to solve the problem of local damage on the bottom of a high-speed passenger ship,this paper firstly uses the vibration analyzer to measure the vibration velocity response of the point,and determining the overall vibra-tion of the passenger ship based on the analysis of the excitation spectrum of the ship's main engine and the ac-celeration response spectrum of different parts of the ship's hull.Then the vibration levels of the cabin,floor and engine room of the ship are determined with relevant standards.Through the test results and theoretical analysis,the vibration of the engine room is determined and the damage causes are analyzed.Finally,according to the reasons,the improvement measures are proposed to add longitudinal and transverse partitions and apply damping to the ship bottom between the main engine base and the generator set.The continuous monitoring of the im-proved ship shows that the proposed method can effectively improve its vibration level and solve the local vibra-tion damage problem.
high speed shipvibration testvibration controllocal damage
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