Parameter design method of composite material vertical pipe winding process

Abstract

The invention discloses a parameter design method for a composite material vertical pipe winding process, and the method comprises the following steps: preparing a composite material winding vertical pipe according to set parameters of the composite material vertical pipe winding process; carrying out residual stress detection on the composite material vertical pipe, and constructing large sample data by utilizing a virtual sample generation technology; constructing a residual stress model based on the large sample data; according to the constructed residual stress model and the composite material vertical pipe stress model based on the laminated plate theory, constructing a composite material vertical pipe total stress model; and according to the total stress model of the composite material vertical pipe, by utilizing an optimization algorithm, obtaining process parameters meeting the performance requirements of the composite material in a winding process parameter domain. The uniformity of structural stress when the composite vertical pipe is pressed is improved, the strength of the first layer of the composite vertical pipe is improved, the problem that the first layer of the composite vertical pipe is prone to first failure is solved, the quality of the composite vertical pipe is improved, and the continuous use effect of the composite vertical pipe is guaranteed.

Description

technical field [0001] The invention belongs to the field of composite material riser manufacturing, and in particular relates to a parameter design method of a composite material riser winding process. Background technique [0002] Composite material riser is a key component of offshore oil and gas development, which is of great significance to my country's strategic goal of becoming a powerful ocean country. As the depth of ocean exploration increases, higher requirements are placed on the mechanical properties of risers. How to manufacture products with stronger performance and more stability has become an urgent problem to be solved in deep sea exploration. At present, the means of manufacturing composite risers is mainly based on fiber winding molding technology. How to manufacture composite risers with better structural performance based on this molding technology still faces many problems, especially when composite risers are subject to internal pressure. Under the i...

AI Technical Summary

Problems solved by technology

Although these patents have designed the winding structure from the aspects of structure and process parameters, they have less consideration for the influence of residual stress on the structure, and even less about the stress design of the composite riser under the action of residual stress on the load. Comprehensive Consideration of Working Conditions and Technology of Composite Material Structure

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