Composite Truss Web Bonding for Aircraft Wing Load Transfer
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Solution Overview
Problem
Conventional aircraft wing construction using composite truss members is complex and heavy, making it difficult to manufacture and assemble lightweight structures that efficiently transfer loads.
Innovation Solution
A method and structure involving composite sheets bonded face-to-face to form upper and lower chord members and web elements, with flange plates attached for added support, facilitating the creation of lightweight, efficient truss structures for aircraft wings and other applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal components are used for truss structures, then strength and load transfer capability are improved, but weight increases significantly
Solution Approach 1:
The patent applies composite materials by bonding multiple composite sheets together to form truss structural elements. The sheets are coupled face-to-face in a face-to-face orientation to create lightweight yet strong structural members that can effectively transfer loads while minimizing weight, directly resolving the contradiction between strength and weight.
2Weight of moving object
If composite materials are used for truss structures, then weight is reduced, but manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The patent divides the truss structure into separate composite sheets that are bonded together face-to-face. This segmentation allows for simpler manufacturing of individual sheets while maintaining the overall structural integrity and load transfer capability of the complete truss assembly, reducing manufacturing complexity.
Solution Approach 2:
The patent combines multiple composite sheets by bonding them face-to-face to form integrated truss structural elements. This merging approach simplifies assembly by creating pre-bonded composite structures that can be installed as complete units, reducing overall assembly difficulty while maintaining weight advantages.
3Loss of time
If composite sheets are bonded face-to-face to form truss elements, then assembly time is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-bonding multiple composite sheets face-to-face to form complete truss structural elements before final assembly. This advance bonding preparation reduces on-site assembly time while the pre-bonding process allows for controlled manufacturing precision to be achieved in a factory setting rather than during field assembly.
Data Source
AI summary
Methods and structures for a composite truss structure are provided. The structure includes a web formed of a plurality of sheets of composite material, each sheet including a first face and an opposing second face and each face including a length and a width. Each of the plurality of sheets are coupled to at least one other of the plurality of sheets face to face such that the length and width of each face substantially match the length and width of a face of an adjacent sheet. The plurality of sheets are formed to include an upper chord member, a lower chord member, and a plurality of web members extending therebetween. The structure also includes at least a first flange plate coupled to the web proximate an outer periphery of the web.