摘要
随着对建造船舶的结构进行优化,船体结构尺寸余量很小,因此上层建筑很容易出现局部振动。本文采用有限元法和德劳LocVibs程序分别对上建区域结构进行固有频率计算以避免发生共振。
As the upsizing of ships in build and optimizing of ship structures, the hull allowances become very small, local vibrations are easily happened in ship superstructures. In this paper, the FEA method and software of LocVibs are applied to calculate the natural frequency of ship superstructures and to avoid the resonances.
关键词
固有频率
激振源
局部振动
有限元计算
Natural frequency Excitation source Local vibration Finite elementanalysis
