Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on the Improvement of Adhesive Mixing Ratio about Acoustic Window for Enhancing SONAR Performance of Submarine

수중함 소나 수신성능 향상을 위한 음향창 접착제 배합비 개선

  • Received : 2018.02.08
  • Accepted : 2018.07.20
  • Published : 2018.08.05
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Abstract

This study suggest the improvement of the CFRP adhesive mixing ratio about acoustic window to enhance SONAR performance. The CFRP of submarine is produced by allocation an acoustic window zone by the beam width of SONAR sensors. During the sea trial, SONAR system's bearing and range accuracy data is not in tolerance due to debonding phenomenon on CFRP. The inappropriate mixing ratio of adhesives caused that peeling phenomenon occurred in the acoustic window part, which is the reason for the deterioration of SONAR sensors performance. The report includes explanation of test procedure of SONAR, root cause analysis, CFRP manufacturing procedure, laboratory tests results, and proof of the performance at the sea trial.

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References

  1. Woo-Jin Jung, et al., "A Study on the Measurement and Analysis Method for the Acoustic Transmission Loss of the Material for the Acoustic Window of Sonar Dome," Transaction of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 7, pp. 729-738, 2006.
  2. Oh-Heon Kwon and Yu-Seong Yun, "The Effect of Load Orientation for Crack Propagation and Acoustic Emission Evaluation on Plain Woven CFRP," Transactions of the Korean Society of Mechanical Engineers A, Vol. 28, No. 4, pp. 443-452. 2004. https://doi.org/10.3795/KSME-A.2004.28.4.443
  3. Ku-Kyun Shin, et al., "The Influence of Design Factors of Sonar Acoustic Window on Transfer Function of Self Noise due to Turbulent Boundary Layer," Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 23, No. 1, pp. 61-62, 2013.
  4. Seok-Hwan Ahn, et al., “Strength Evaluation for Adhesive Bonds of Adhesive with FRP Ship Body Structure,” Journal of Advanced Research in Ocean Engineering, Vol. 24, No. 1, pp. 146-147, 2010.
  5. Young-Soo Seo, et al., "A Study on the acoustic Performance Design Technique of Underwater Acoustic Material," Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 23, No. 10, pp. 920-927, 2013. https://doi.org/10.5050/KSNVE.2013.23.10.920
  6. DIN EN ISO 527-4:1997 Determination of tensile properties- Part 4: Test Conditions for Isotropic and Orthotropic Fibre-Reinforced Plastic Composites.
  7. ASTM D297/D297M-15 Standard Test Methods for Rubber Products-Chemical Analysis.
  8. Kwang-Soo Kim, et al., “Failure Mode and Strength of Unidirectional Composite Single Lap Bonded Joints I. Experiments,” Journal of the Korean Society for Composite Materials, Vol. 17, No. 6, pp. 14-21, 2014.
  9. Kwang-Soo Kim, et al., “Failure Mode and Strength of Unidirectional Composite Single Lap Bonded Joints II. Failure Prediction,” Journal of the Korean Society for Composite Materials, Vol. 18, No. 1, pp. 1-9, 2015.