Split-Ring Adapter Assembly for DLBM-to-BSN900E Bell Mouth Coupling
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Solution Overview
Problem
The existing interface compatibility issues between BSN900E type bell mouths and diverless model bell mouths (DLBM) prevent the interchangeability of flexible risers between different support systems, requiring refitting and new accessories, which hampers design readiness and operational efficiency.
Innovation Solution
An adapter tool with a split ring design, compatible with both BSN900E and DLBM models, allowing for direct screw fastening or ring/rod support, enabling the coupling of bend stiffeners with DLBM interfaces in BSN900E or MFBM models, ensuring interchangeability and flexibility between designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If refitting of riser top ends is performed to change the stiffener helmet, then interface compatibility is improved, but readiness and operational efficiency deteriorate due to acquisition of new accessories and assembly requirements
Solution Approach 1:
The adapter tool acts as a mediator that enables interface compatibility without requiring refitting of the riser top ends. By coupling between the existing BSN900E bell mouth and the DLBM bend stiffener, it eliminates the need to acquire new accessories or perform complex assembly operations, thereby maintaining design readiness
Solution Approach 2:
The adapter tool is designed and prepared in advance as a ready-to-install component. Its geometry is pre-configured to match both BSN900E and DLBM interfaces, allowing for quick installation without requiring preliminary refitting operations or acquisition of additional accessories, thus preserving operational efficiency
Data Source
AI summary
In order to achieve the above-described objectives, the present invention provides an adapter tool for coupling a bend stiffener with diverless bell mouth (DLBM) interface in a bell mouth with BSN900E-type interface. The adapter tool is capable of maintaining interchangeability and flexibility between designs or design phases, even if different bell mouth models are used. A tool characterized in that it comprises an adapter split ring (10) that, in the upper part, has a geometry compatible with the dovetail profile of the BSN900E model helmet and, in the lower part, has a geometry compatible with the seating profile of the DLBM helmet (40). The present invention leads to two assembly methods, which guarantee the operational safety of the adapter assembly, namely: a method where it is only done by screws located in the split ring; and another, where the assembly includes, in addition to the split ring, an assembly with the support ring and rods.