Mechanical behavior analysis of a submerged fixed point anchoring system for a hydroacoustic signature measuring sensor for divers and ships

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Slamnoiu, G.^1 ; Radu, O.^1 ; Surdu, G.^1 ; Roca, V.^1 ; Damian, R.^1 ; Pascu, C.^1 ; Curc, E.^1 ; Rdulescu, A.^1

Research Center for Navy, No. 4 Stefamta-Voda Street, Constana

900402, Romania^1

关键词: 3-d modeling;    Anchoring systems;    Fixed points;    Hydroacoustic signatures;    Mechanical behavior;    Metallic structures;    Motion dynamics;    Volume of fluids;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/8/082014/pdf
DOI  :  10.1088/1757-899X/145/8/082014

来源: IOP

【 摘 要 】

The paper has as its main objectives the presentation and the analysis of the numerical analysis results for the study of a fixed point anchoring system for a hydroacoustic sensor when measuring the hydroacoustic signature of divers and ships in real sea conditions. The study of the mechanical behavior of this system has as main objectives the optimization of the shape and weight of the anchorage ballast for the metallic structure while considering the necessity to maintain the sensor in a fixed point and the analysis of the sensor movements and the influences on the measurements caused by the sea current streams. The study was focused on the 3D model of metallic structure design; numerical modeling of the water flow around the sensor anchoring structure using volume of fluid analysis and the analysis of the forces and displacements using FEM when needed for the study. In this paper we have used data for the sea motion dynamics and in particular the velocity of the sea current streams as determined by experimental measurements that have been conducted for the western area of the Black Sea.