General Design And Analysis Of Seafloor Survey FRP Platform

With the gradual depletion of land resources, countries in the world have realized the importance of the development of marine resources. Marine survey is the basis for the development of marine resources. In order to promote the development of marine surveying technology, a kind of seafloor FRP platform which can be easy to float and dive and has many advantages such as Antimagnetic properties, anti-corrosion ability, high reliability and so on is designed by this paper.By analyzing the design platform requirements, the final feasible solution is got through the thought of successive approximation. A parametric platform model is built by parametric analysis of the platform. The parametric platform model can provide the basis for further calculationsIn order to choose a reasonable kind of FRP materials, the basic properties of FRP materials are summarized. A tensile test of three kinds of FRP materials, filament winding FRP materials, paste formed FRP materials and pultruded FRP materials, is done to verify longitudinal mechanical properties. Additionally, a docking seam test of FRP materials is done in this paper. Several methods to improve the carrying capacity of the seams are got, and some suggestions are given to the implementation of docking seams by the test.For the purpose of improving the design efficiency of the platform, parameterized buoyancy and stability calculation subsystem is developed. Firstly, all ways of AutoCAD redevelopment are discussed by this paper. Secondly, the method of3D parametric modeling of the platform by AutoCAD redevelopment based on ActiveX Automation object model is described. Finally, parameterized calculation of buoyancy and stability is achieved based on the3D parametric modeling.In order to solve the optimization problem of complex structures, a parameterized finite element structural optimization method based on GA is developed. In the calculation of optimization, the genetic algorithm is improved to enhance convergence speed and adapt to the structure optimization problem of the platform. In the structural analysis, the method of parametric structural finite element analysis by APLD is discussed in detail. Additionally, a subsystem of the parameterized finite element structural optimization method based on GA is developed by VS.NET, MATLAB and ANSYS. Besides, techniques to solve interface issues between different software are presented. Finally, the structure of the platform is optimized by the subsystem, and the structural weight is significantly reduced.Studying on the method of general design of a kind of seafloor survey FRP platform is achieved. The parametric design method of this paper can greatly improve design efficiency of the platform. Simultaneously the parameter theory of this paper, the calculation method of buoyancy and stability and the structural finite element optimization method can be generally applicable to related problems of ship building and ocean engineering.