ABSTRACT

Wu, H.; Liu, Y.; Xue, G.; Guo, F.; Li, Z., and Liu, M., 2018. Design and experimental research on deep water pressure resistance system of argo float. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 116–123. Coconut Creek (Florida), ISSN 0749-0208.

The underwater probe device such as ROV (Remote Operated Vehicle), AUV (Autonomous Underwater Vehicle) and ARGO (Array for Real-Time Geostrophic Oceanography) float are widely used in observing the salty, temperature, depth and other oceanographic parameter. As the working depth go deeper the limitation of anti-pressure case becomes vital. The optimal size of the anti-pressure should be designed in order to meet the requirement that the float's house can ensure the 4000m deep-sea pressure and has the minimum weight. However, rare researches focus on the anti-pressure house theory or designation for the ARGO float. In this paper, an innovation structure and working principle of a 4000m deep-sea ARGO float is introduced. Then a non-linear buckling mathematic model for the thin-walled cylinder house is constructed. The ANSYS simulation is applied to draw the critical pressure at different diameter, wall-thickness or length of the abstract pressure house. Then the mathematic conclusion is compared with the ANSYS data to validate the correctness of the mathematic method and find the initial imperfection. Finally, the pressure resistance experimental is carried out to examine the sealability and pressure resistant ability of the shell. In all,this paper would provide a practical construction theory and anti-pressure model for the deep sea profile probe ARGO floats.

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