Hydrophysics

Hydrophysics

Modeling and Simulation of the Target Strength for Akula Class Submarine

Document Type : Original Article

Authors
Ali Bayat 1
Abbas Besharati-Seidani 1
Hadi Amiri 2
1 Malek Ashtar University of Technology
2 university of Tehran
Abstract
Target Strength is one of the main parameters in the sonar equation that is calculated for active sonar. In this paper, the Target Strength of the Russian 941 Akula Class submarine as one of the largest submarines in the world is estimated. We first subdivide the submarine into three cylindrical, rectangular, and hemispherical geometric shapes, and compute the target strength each at different angles and constant frequency, then aggregate all three geometric shapes and calculate the total target strength of the submarine. Finally, modeling and simulation for this submarine is presented. Results show the maximum target strength of this submarine at the normal angle is 109.26 dB and the average target strength of the cylindrical and rectangular section and the nose at different angles is 15.193 dB
Keywords
Submarine
sonar
target strengths
modeling and simulation
[1]     Hodges RP. Underwater Acoustics Analysis Design and Performance of Sonar. United Kingdom: John Wiley; 2010.
[2]     Urick RJ. Principles of underwater sound. 3rd ed. California: Peninsula Publishing; 1983.
[3]     Etter PC. Underwater Acoustic Modelling and Simulation. 4rd ed. United States: CRC Press; 2013.
[4]     Kim YJ. The Underwater Propagation of Sound and its Applications. Dartmouth undergraduate journal of science. 2012 March;11:1-7.
[5]     Project 941 Akula [Internet]. Russia: 2018[updated June 7 2018]. Available from: http://rusnavy.com
[6]     Miller JH, Potter DC. Active high frequency phased-array sonar for whale ship-strike avoidance: target strength measurements. Proceeding of the MTS/IEEE Oceans; 2001 Nov 5; Honolulu, HI.USA: IEEE; 2001.
[7]     Au WW. Acoustic backscatter from a dolphin. The Journal of the Acoustical Society of America. 1994 May; 95: 2881.
[8]     Silva S, editor. Advances in Sonar Technology. BoD–Books on Demand; 2009.
[9]     Ainslie MA. Principles of sonar performance modelling. Berlin: Springer; 2010.
[10]     Pailhas Y. Sonar systems for object recognition [dissertation]. Univ Heriot-Watt; 2013.
[11]     Herbich JB. Developments in offshore engineering.1st ed. Houston, Texas: Gulf Publishing Company; 1999.
[12]     Wait AD. Sonar for Practicing Engineers.3rd ed. England: John Wiley & Sons; 2002.

  • Receive Date 17 March 2019
  • Revise Date 20 May 2019
  • Accept Date 20 May 2019