Composite Ship Deck Structural Member with Integrated Plate Reinforcement
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Solution Overview
Problem
Conventional steel plate structural members in shipbuilding face issues such as thermal deformation due to welding, excessive weight, and poor usability in construction due to noise transmission and high thermal conductivity.
Innovation Solution
A composite material-based lightweight structural member with integrated plate reinforcement, comprising a metallic upper plate, metal reinforcement plates, and a non-metallic core layer, which eliminates the need for welding and reduces weight while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If plate reinforcement is welded to the upper plate at close intervals, then structural strength is improved, but thermal deformation occurs causing bending and warping
Solution Approach 1:
The patent uses a composite structure consisting of an upper plate, lower plate, and core material to replace the conventional welded steel plate structure. This composite construction provides the necessary structural strength without requiring welding of plate reinforcements, thereby eliminating thermal deformation while maintaining or improving load-bearing capacity.
Solution Approach 2:
The invention extracts and eliminates the welding process from the structural assembly method. By using a composite construction with core material filling the space between upper and lower plates, the patent removes the need for welding plate reinforcements to the upper plate, thus solving the thermal deformation problem while preserving structural integrity.
2Strength
If conventional steel plate structural members are used, then structural integrity is maintained, but weight is excessive
Solution Approach 1:
The patent employs composite materials consisting of metal plates (upper and lower) combined with core material to create a lightweight structural member. This composite construction achieves the required structural integrity while significantly reducing weight compared to conventional solid steel plate structures, making it suitable for shipbuilding where weight reduction is critical.
3Strength
If steel plate structural members are used in construction, then structural strength is achieved, but noise transmission and thermal conductivity are poor
Solution Approach 1:
The composite structure with core material filling the space between upper and lower plates provides inherent noise reduction and thermal insulation properties. The core material acts as an acoustic and thermal barrier, eliminating the need for separate insulation layers while maintaining structural strength, making the member suitable for both shipbuilding and construction applications.
Data Source
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AI summary
Disclosed are a composite material-based lightweight structural member having integrated plate reinforcement, and a ship deck structure manufactured using the same. The composite material-based lightweight structural member having integrated plate reinforcement, according to the present disclosure, performs the basic function of plate reinforcement by having a plurality of protrusions formed at regular intervals on the lower surface of a flat plate part, wherein the protrusions are produced so as to be integrated into the structure without a separate joining process such as welding or bolting, offering the advantages of being ultra-light and thin while exhibiting excellent structural performance and enabling the manufacture of a long-span structure, and thus can be used universally not only as a thin plate structure for a ship but also as a construction material.