X-BOW型极地邮轮激励源对水下声辐射贡献率研究  

Contribution Rate of Excitation Sources of a X-Bow Type of Polar Exploration Cruise to Their Underwater Acoustic Radiation

作　　者：刘甄真 江国和[1] 孙久航 陈鸽 袁双双 LIU Zhenzhen;JIANG Guohe;SUN Jiuhang;CHEN Ge;YUAN Shuangshuang(Shanghai Maritime University,Shanghai 201306,China;China Merchants Cruise Shipbuilding Co.,Ltd.,Haimen 226100,China)

机构地区：[1]上海海事大学商船学院,上海201306 [2]招商局邮轮制造有限公司,海门226100

出　　处：《中国造船》2020年第4期150-163,共14页Shipbuilding of China

基　　金：国家自然科学基金青年科学基金项目(No.61403250)。

摘　　要：建立了100 m级X-BOW型极地探险邮轮的有限元和边界元模型,通过频响分析方法计算了振动速度-激励力的导纳矩阵,测试了航行时船尾底板和主机基座机脚处的振动速度,利用测试振动速度和导纳矩阵反推出螺旋桨和主机激励力。基于获得螺旋桨和主机激励力,将各个舱室的仿真振动速度与测试值对比,误差在工程允许范围内,验证了激励力的准确性。在边界元模型上加载激励源,分析了邮轮激励源引起的水下噪声辐射的特点,并单独加载螺旋桨和主机激励力,分析这两种激励源对水下噪声的贡献率,为邮轮结构水下声辐射的前期评估和后期控制提供参考。A finite element and boundary element model of a X-Bow polar exploration cruise is established.Admittance matrix of vibration velocity excited force is calculated by the frequency response analysis method,and vibration velocities in the stern plate and main engine foundations are measured during the trial trip.Excited forces of the propeller and main engine are derived by the vibration velocity and the admittance matrix.Calculation of the vibration velocity is compared with the measurement,and the tolerance is within the allowable range of the engineering.Distribution of sound level under water and contribution rate of excitation sources for underwater acoustic radiation is analyzed,which provides a reference for assessment and control of vibration.

关 键 词：X-BOW型极地探险邮轮 导纳矩阵 激励力 水下声辐射 贡献率 

分 类 号：U661.44[交通运输工程—船舶及航道工程]