Adjustable Modular Basket Carousel for Vessel Installation
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Solution Overview
Problem
Existing basket carousel systems are large, heavy, and bulky, making transportation difficult and expensive, and require lengthy assembly on the vessel, leading to significant downtime and inefficient use of space.
Innovation Solution
An adjustable modular basket carousel system is mounted entirely on-shore and lifted onto the vessel, with a grillage and basket design that allows for diameter adjustment using extendable beams and additional support elements, ensuring stiffness and ease of transport while reducing installation time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the basket carousel system is made adjustable and modular with many elements, then the system can be transported in regular containers and diameter can be adjusted, but the construction becomes slack and lacks stiffness
Solution Approach 1:
The system is pre-assembled onshore into a complete modular structure before being transported to the vessel. This preliminary assembly ensures proper structural integrity and stiffness is achieved through controlled factory conditions, while still maintaining the ability to adjust the diameter by adding or removing modular triangular subassemblies after installation on the vessel.
Solution Approach 2:
The system incorporates adjustable diameter capability through the addition or removal of modular triangular subassemblies, allowing the structure to dynamically adapt its size. The dynamic adjustment is achieved while maintaining structural stiffness through the rigid triangular geometry and proper distribution of support elements throughout the modular configuration.
2Stability of the object's composition
If the system is assembled on the deck of the vessel, then the stiffness problem is avoided, but the vessel downtime increases significantly
Solution Approach 1:
The complete modular basket carousel system is assembled onshore in advance before being transported to the vessel. This preliminary assembly eliminates the time-consuming on-vessel construction process, reducing vessel downtime significantly while maintaining structural integrity through controlled factory assembly conditions and pre-validated connection methods.
Solution Approach 2:
The system is divided into modular triangular subassemblies that can be easily transported in standard containers and quickly assembled onshore before vessel installation. This segmentation enables efficient pre-assembly and transport while allowing for rapid final assembly on the vessel, minimizing the time the vessel is out of service.
3Device complexity
If the diameter of the basket carousel is fixed, then the structure is simpler, but space is wasted and additional weight is added onboard
Solution Approach 1:
The system features an adjustable diameter design that allows the basket carousel to be configured to match the specific requirements of different projects. The diameter can be optimized by adjusting the number of modular triangular subassemblies, ensuring efficient use of deck space and minimizing unnecessary weight while maintaining the simplicity of the modular construction approach.
4Strength
If traditional basket carousel systems are used, then the structure is robust, but transportation becomes difficult and expensive
Solution Approach 1:
The robust traditional basket carousel structure is divided into modular triangular subassemblies that can be disassembled and transported in standard containers. This segmentation maintains the structural robustness of the original design while enabling efficient transportation and storage, as each modular unit fits within standard shipping container dimensions.
Data Source
Figure 1
Figure 2~3
Figure 4a~4c
AI summary
Method for installing a modular basket carousel system on a vessel, wherein said modular basket carousel system includes a grillage (3) arranged to be fixated on a deck of the vessel and a basket (2) for receiving a cable, which basket (2) is mountable on the grillage (3) and rotatable around a vertical axis, the method comprising the steps of: - mounting the modular basket carousel system while adjusting a diameter of the system; - lifting the mounted modular basket carousel system and placing said system on a deck of the vessel; - fixating the modular basket carousel system on the deck of the vessel.