标题：Analysis on spectra of hydroacoustic field in sonar cavity of the sandwich elastic wall structure
作者：Xuetao, W.; Rui, H.; Weike, W.
作者机构：[Xuetao, W.] Naval Univ Engn, Key Lab Shipping Noise & Vibrat, Wuhan 430033, Hubei, Peoples R China.; [Rui, H.; Weike, W.] Shandong Univ, Sch Mech E 更多
会议名称：3rd International Conference on Applied Materials and Manufacturing Technology (ICAMMT)
会议日期：JUN 23-25, 2017
来源：2017 3RD INTERNATIONAL CONFERENCE ON APPLIED MATERIALS AND MANUFACTURING TECHNOLOGY (ICAMMT 2017)
摘要：In this paper, the characteristics of the mechanical self - noise in sonar array cavity are studied by using the elastic flatbed - filled rectangular cavity parameterization model. Firstly, the analytic derivation of the vibration differential equation of the single layer, sandwich elastic wall plate structure and internal fluid coupling is carried out, and the modal method is used to solve it. Finally, the spectral characteristics of the acoustic field of rectangular cavity of different elastic wallboard materials are simulated and analyzed, which provides a theoretical reference for the prediction and control of sonar mechanical self-noise. In this paper, the sandwich board as control inside the dome background noise of a potential means were discussed, the dome background noise of qualitative prediction analysis and control has important theoretical significance.