摘要
以立式离心泵作为典型辅机设备的代表,对其进行了单、双层隔振系统设计及有限元建模分析,并进一步分析了不同隔振元件对隔振性能的影响,为后续试验奠定基础。然后结合离心泵在实船上的振动传递情况,截取目标舰机舱双层底,按1/2缩减,设计了双层底板架结构模型,以此搭建试验台架,对离心泵刚性安装和弹性安装下的台架振动特性进行了测量与分析,并以实测振动数据为输入计算了台架外底的水下声辐射。仿真和试验结果均表明:所设计的离心泵双层隔振系统能降低振动的传递,减小船体对外声辐射。
The vertical centrifugal pump was used as the representative of the typical auxiliary equipment,the single and double layer vibration isolating system design and finite element modeling analysis were carried out,and the influence of different vibration isolation components on vibration isolation performance was further analyzed,which laid the foundation for the follow-up test.Then,combined with the vibration transmission of centrifugal pump on the real ship,the double bottom of the target ship′s cabin was intercepted,and the double bottom frame structure model was designed through reducing the structure by 1/2,and the test bench was built,the vibration characteristics of the platform under the rigid and elastic installation of the centrifugal pump were measured and analyzed,and with the measured vibration data as the input,the underwater acoustic radiation of the platform′s outer bottom was calculated.The simulation and experimental results show that the designed double-layer vibration isolation system of centrifugal pump can reduce the transmission of vibration,and reduce the external acoustic radiation of the hull.
作者
李飞
向阳
李著新
李浩然
LI Fei;XIANG Yang;LI Zhu-xin;LI Hao-ran(School of Energy and Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Key Laboratory of Transportation Power System in Ship Power System,Wuhan 430063,China)
出处
《武汉理工大学学报》
CAS
2021年第3期65-72,共8页
Journal of Wuhan University of Technology
基金
海军装备研究项目(10204010410)
关键词
离心泵
隔振系统设计
振动特性
声辐射
centrifugal pump
vibration isolating system design
vibration characteristics
acoustic radiation
作者简介
李飞(1992-),女,硕士生.E-mail:xwdlm@whut.edu.cn;通讯作者:向阳(1962-),女,教授,博导.E-mail:yxiang@whut.edu.cn
