某高速缉私艇船体局部振动计算分析

Calculation and Analysis of Local Vibration for One High Speed Coastguard Vessel

以某高速缉私艇为实例,参照中国船级社《船上振动控制指南(2012)》的相关规定对该艇局部结构振动进行计算分析,使局部结构的固有频率与激励频率不相重合并保持一定的储备。计算结果表明,该艇舵机舱及机舱区域结构的固有频率均满足《指南》的要求。文中采用的计算方法,可为其它类似结构局部振动计算提供参考。

The calculation and analysis of local vibration for one high speed coastguard vessel are carried out upon CCS ＂GUIDELINES FOR SHIPBOARD VIBRATION CONTROL （2012）＂ in order to ensure that the natural frequency of local structure is not coincided with exciting frequency and maintains a certain reservation. The results indicate that the natural frequency of the local structure in steering gear room and engine room has complied with the Guidelines＇ requirements. The calculation method adopted in the paper can serve as certain references for the calculation of local vibration of the other similar structure.