Characteristic of low and middle frequency underwater noise of a catamaran

Pang, F.Z., Xue, Y.Z., Tang, D., Li, S. and Xiong, Y.P. (2015) Characteristic of low and middle frequency underwater noise of a catamaran. In, Guedes Soares, Carlos and Shenoi, R. Arjit (eds.) Analysis and Design of Marine Structures V. London, GB. CRC Press, pp. 159-165. (doi:10.1201/b18179-22).

Abstract

This paper examines the characteristic of low and middle frequency underwater noise of a catamaran. Based on acoustic-structure coupling method, the low and middle frequency underwater noise radiation prediction model of a twin-hull craft is established. The underwater noise radiations excited by both the monohulland double hulls are studied, respectively. Calculation method of underwater noise of twin-hull craft is also discussed. Study shows that the behaviours of underwater noise radiation of a catamaran is quite different from a single hull ship. Due to the existence of free surface and twin hulls of the craft, the underwater sound radiation varies especially in the near field -. The sound directivity changes severely when standing wave appears between the region of twin hulls if the distance of bilateral hulls and sound wave length satisfies certain conditions at certain frequencies. However, if the standing wave effects do not occur between twin hulls the principle of linear superposition is approximately satisfied.

Full text not available from this repository.

Contributors

Author: Y.P. Xiong

University divisions

• Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Southampton Marine & Maritime Institute (pre 2018 reorg)
• Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Civil Maritime & Env. Eng & Sci Unit (pre 2018 reorg) > Fluid Structure Interactions Group (pre 2018 reorg)
  Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Civil, Maritime and Environmental Engineering > Civil Maritime & Env. Eng & Sci Unit (pre 2018 reorg) > Fluid Structure Interactions Group (pre 2018 reorg)
  Civil, Maritime and Environmental Engineering > Civil Maritime & Env. Eng & Sci Unit (pre 2018 reorg) > Fluid Structure Interactions Group (pre 2018 reorg)

Download statistics