Mooring Device Direction Changing Portion Deep Water Anchoring
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Solution Overview
Problem
Existing mooring systems for floating offshore wind power generators face challenges in minimizing the length of connecting members in deep water, reducing installation area, and ensuring stable anchoring.
Innovation Solution
A mooring device featuring a weight structure that sinks to the seabed, an anchor portion for anchoring the floating body, and a connecting member with a direction changing portion that alters its extension direction from vertical to horizontal, allowing for efficient and stable mooring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a catenary type mooring system is used with anchors drawn in various directions and connected diagonally to the floating body, then the floating body can be moored, but the length of the mooring line increases significantly in deep water and the installation area increases
Solution Approach 1:
The patent introduces a direction changing portion that redirects the connecting member from a diagonal path to a vertical path, effectively changing the spatial dimension of the mooring line arrangement. This vertical alignment reduces the horizontal projection and overall length required for deep water mooring while maintaining anchoring effectiveness.
Solution Approach 2:
The weight structure serves as an intermediary component between the floating body and the anchor portion. It receives the connecting member from the floating body, changes its direction through the direction changing portion, and transmits it to the anchor portion, enabling the vertical alignment that reduces mooring line length.
2Reliability
If a catenary type mooring system is used with diagonal connection, then the floating body can be moored, but the installation area for the floating offshore wind power generator increases
Solution Approach 1:
By changing the connecting member's path from diagonal to vertical through the direction changing portion, the horizontal space required for anchor placement is minimized. The vertical orientation allows anchors to be positioned closer to the floating body's projection, reducing the installation area.
3Quantity of substance
If a taut type mooring system is used with vertical connection to maintain tension, then material costs are reduced, but the bearing capacity of the anchor is diminished and the floating body stability is affected
Solution Approach 1:
The weight structure acts as a mediator that enables the vertical connecting member arrangement while adding sufficient weight to ensure stability. This intermediary component provides the necessary bearing capacity that would otherwise be insufficient with a simple vertical taut connection, eliminating the need for additional fixing devices.
4Quantity of substance
If a taut type mooring system is used with vertical connection, then material costs are reduced, but separate fixing devices need to be added to improve anchor bearing capacity, leading to complicated installation and increased costs
Solution Approach 1:
The patent merges the weight structure with the direction changing portion and the anchor portion into a single integrated component. This combination eliminates the need for separate fixing devices that would be required in a simple vertical taut system, simplifying both the device structure and installation process while maintaining bearing capacity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution minimizes the length of connecting members required for mooring in deep water, reduces the installation area, and enhances the stability and economic efficiency of the mooring system by securing sufficient grip force from the anchor portion.
Implementation Method 1
a weight structure (10) which sinks by gravity to be seated on a seabed
Data Source
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AI summary
Provided is a mooring device. The mooring device includes: a weight structure which sinks by gravity to be seated on a seabed; an anchor portion which is settled on the seabed to anchor a floating body; and a connecting member which includes one end portion connected to the floating body and the other end portion connected to the anchor portion, and has an extension direction that is changed by passing through a direction changing portion provided in the weight structure.