Structural Design And Stability Analysis On Vertical Underwater Card Claw Connector

Offshore oil and gas exploration is one of the important aspects of the marine resources exploitation, and the undersea oil and gas pipeline is the key facility to exploit oil and gas resources. Therefore, submarine pipeline tie-back technology which used to connect the flexible pipe or the rigid pipe is the basic point of Underwater Production System.The submarine pipeline tie-back technology has revealed a rapid development in some Ocean States, whereas there is still a blank in this field in our country.The research subject comes from the project "The study of offshore pipeline connection technology in deepwater", which is a part of the national "863" program. The purpose of the thesis is to R&D vertical claw flange connector of offshore pipeline with independent intellectual property right.First, based on research of the development status of the submarine pipeline connection technology in the worldwide, this paper focuses on several mature connection forms and means of pipeline tie-back technology from overseas as well as describes the actual work theory of vertical jaw connector, and analyses the Process of connection Based on the the actual needs of the subject, the general scheme and tie-back mod of the equipment is introduced.Second, the analysis and calculation about the clamp mechanism is executed based on American standard. Based on the pipe fittings standard in domestic oil industry and the design requirements for the actual sea state, the structure design of the equipment is performed with 3D design software of SolidWorks, which consists of mechanism design of the jaw connector, alignment device-oriented institutions and hydraulic control system.Last but not the least, in this paper, finite element analysis is applied on the structural strength of key components of the vertical flange connection jaw hydraulic machinery, and kinematics simulation is applied on jaw connector with the help of COSMOS Motion software.At the same time, The system dynamic dtability analysis of underwater in vertical plane is provided. From what has been discussed above it can prove that vertical flange jaw for underwater sports equipment is reasonable, furthermore, show that the system architecture design is correct.