doi:10.1007/s13344-020-0065-x

Influence Analysis and Vibration Restraint Solutions Research on the Underwater Acoustic Monitoring System

doi: 10.1007/s13344-020-0065-x

WANG Zhen^{1, 2, 3},
ZHENG Yi^{1, 2, 3
, ,},
MAO Yu-feng^{1, 2, 3},
HE Chuan-lin^{1, 2, 3},
GONG Jin-long^{1, 2, 3},
HAO Zong-rui^{1, 2, 3}

More Information

Corresponding author: ZHENG Yi, E-mail: zhengy@sdas.org

摘要

Abstract: In order to reduce the hydrodynamic and structural influences on the detection accuracy especially in the very-low-frequency range, some vibration restraint methods are raised, which are the wrapped fairing improvement, the floating body shape improvement and the cable vibration reduction treatment. Through the improvement analysis and experimental comparison, the final treatments are proposed, namely the multilayer wrapped fairing structure with composite materials, the floating body with NACA0024 airfoil section and X-shape tail spoiler, as well as the brush cable. The sea test is carried out to evaluate the vibration restraint effect. Through comparison of the responses to the ocean ambient noise and the direction of arrival (DOA) estimations with the same underwater transmitting transducer, the results indicate that the horizontal floating platform with vibration restraint treatment has obvious flow resisting effect especially in low frequency range and more accurate DOA estimation.
- hydrodynamic interference /
- vibration restraint /
- fairing /
- DOA estimation /
- computational fluid dynamics

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Figure 1. Configurations of test points and test direction.

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Figure 2. Comparison of acceleration in different directions for each test point.

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Figure 3. Configuration of flow restraint test for different materials.

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Figure 4. Comparison of current velocity ratio with different materials.

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Figure 5. Configuration of sound transmission test for different materials.

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Figure 6. Test bracket with fairing of oxford fabric.

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Figure 7. Comparison of sound transmission with different materials.

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Figure 8. Configuration of multilayer fairing.

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Figure 9. Comparison of hydrophone responses with and without fairing.

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Figure 10. Schematic diagrams of four platform shapes.

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Figure 11. Dimension of the computation flow field.

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Figure 12. Variation of drag, lift and pitch moment coefficient.

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Figure 13. Distribution of flow-induced noise test points.

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Figure 14. Variation of flow-induced noise with the flow velocity.

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Figure 15. Variation of flow-induced noise with the dimensions of tail spoiler.

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Figure 16. Optimized floating body shape.

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Figure 17. Brush cables.

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Figure 18. Comparison of vibration response in soft material and large spacing distance.

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Figure 21. Comparison of vibration response in hard material and small spacing distance.

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Figure 19. Comparison of vibration response in hard material and large spacing distance.

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Figure 20. Comparison of vibration response in soft material and small spacing distance.

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Figure 22. Comparison of vibration responses in short brush and large spacing distance.

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Figure 23. Comparison of vibration responses in short brush and small spacing distance.

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Figure 24. Comparison of vibration responses in short brush and soft material.

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Figure 25. Structure schematic of the measurement platform.

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Figure 26. Brush cables and fairing of Platform-2.

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Figure 27. Current velocity from July 9 to July 10.

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Figure 28. Time-frequency spectrums from July 10 15:00 to 17:00.

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Figure 29. Time-frequency spectrums from July 9 22:00 to July 10 00:00.

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Figure 30. Positions of platforms and sound source.

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Figure 31. DOA estimation of Platform-1 to the sound source.

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Figure 32. DOA estimation of Platform-2 to the sound source.

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Table 1. Configurations of four types fairing

Type	Material	Number of layers	Compactness degree	Specification
1	Oxford cloth	3	1	Densest
2	Metal net	3	4	Sparsest
3	Coarse spongy fabric	3	3	Denser than metal net
4	Smooth spongy fabric	3	2	Sparser than Oxford cloth

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Table 2. Structural parameters of the brush cables

No.	Brush length (mm)	Hardness	Spacing distance (mm)
1	60	Hard	10
2	30	Hard	10
3	30	Soft	10
4	60	Soft	10
5	30	Soft	5
6	60	Soft	5
7	60	Hard	5
8	30	Hard	5

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参考文献(16)

[1]	Ahmed, A.M.E. and Duan, W.Y., 2016. Overview on the development of autonomous underwater vehicles (AUVs), Journal of Ship Mechanics, 20(6), 768–787.
[2]	Dalton, C., Xu, Y. and Owen, J.C., 2001. The suppression of lift on a circular cylinder due to vortex shedding at moderate Reynolds numbers, Journal of Fluids and Structures, 15(3–4), 617–628.
[3]	Dewi, F.D.E., Liapis, S.I. and Plaut, R.H., 1999. Three-dimensional analysis of wave attenuation by a submerged, horizontal,bottom-mounted,flexible shell,Ocean Engineering, 26(9), 813–839.
[4]	Ghasemloonia, A., Rideout, D.G. and Butt, S.D., 2015. A review of drillstring vibration modeling and suppression methods, Journal of Petroleum Science and Engineering, 131, 150–164. doi: 10.1016/j.petrol.2015.04.030
[5]	Hawkes, M. and Nehorai, A., 2001. Acoustic vector-sensor ain ambient noise, IEEE Journal of Oceanic Engineering, 26(3), 337–347. doi: 10.1109/48.946508
[6]	Kandasamy, R., Cui, F.S., Townsend, N., Foo, C.C., Guo, J.Y., Shenoi, A. and Xiong, Y.P., 2016. A review of vibration control methods for marine offshore structures, Ocean Engineering, 127, 279–297. doi: 10.1016/j.oceaneng.2016.10.001
[7]	Lee, S.J., Lee, S.I. and Park, C.W., 2004. Reducing the drag on a circular cylinder by upstream installation of a small control rod, Fluid Dynamics Research, 34(4), 233–250. doi: 10.1016/j.fluiddyn.2004.01.001
[8]	Mavrakos, S.A. and Chatjigeorgiou, J., 1997. Dynamic behaviour of deep water mooring lines with submerged buoys, Computers & Structures, 64(1–4), 819–835.
[9]	Sakamoto, H. and Haniu, H., 1994. Optimum suppression of fluid forces acting on a circular cylinder, Journal of Fluids Engineering, 116(2), 221–227. doi: 10.1115/1.2910258
[10]	Sarpkaya, T., 2004. A critical review of the intrinsic nature of vortex-induced vibrations, Journal of Fluids and Structures, 19(4), 389–447. doi: 10.1016/j.jfluidstructs.2004.02.005
[11]	Shchurov, V.A., 1991. Coherent and diffusive fields of underwater acoustic ambient noise, The Journal of the Acoustical Society of America, 90(2), 991–1001. doi: 10.1121/1.401913
[12]	Shchurov, V.A., Kuleshov, V.P. and Cherkasov, A.V., 2011. Vortex properties of the acoustic intensity vector in a shallow sea, Acoustical Physics, 57(6), 851–856. doi: 10.1134/S1063771011060169
[13]	Shchurov, V.A., Kuleshov, V.P. and Tkachenko, E.S., 2010. Interference phase spectra of wideband surface source in the shallow sea, Proceedings of the 27th Session of the Russian Acoustical Society, Moscow.
[14]	Sherman, J., Davis, R.E., Owens, W.B. and Valdes, J., 2001. The autonomous underwater glider ‘Spray’, IEEE Journal of Oceanic Engineering, 26(4), 437–446. doi: 10.1109/48.972076
[15]	Wang, Z., Zheng, Y., Mao, Y.F., Wang, Y.Z., Yu, Y.T. and Liu, H.N., 2018. Research on hydrodynamic interference suppression of bottom-mounted monitoring platform with fairing structure, China Ocean Engineering, 32(1), 51–61. doi: 10.1007/s13344-018-0006-0
[16]	Zdravkovich, M.M., 1981. Review and classification of various aerodynamic and hydrodynamic means for suppressing vortex shedding, Journal of Wind Engineering and Industrial Aerodynamics, 7(2), 145–189. doi: 10.1016/0167-6105(81)90036-2