Vehicle Panel Structure with Orthogonal Beads for Multi-Directional Rigidity
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Solution Overview
Problem
Existing vehicle panel structures face challenges in transmitting loads effectively from multiple directions, leading to reduced rigidity, particularly when loads act orthogonally to the core member.
Innovation Solution
A vehicle panel structure comprising a first panel made from fiber-reinforced resin with beads extending in one direction and a second panel with beads extending in a perpendicular direction, allowing for efficient load transmission from multiple angles, while also reducing weight and enhancing protection for components like battery cases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a corrugated core member is used between flat plate panels, then weight reduction is achieved through CFRP material, but rigidity to load from directions orthogonal to the core member axial direction is insufficient
Solution Approach 1:
The invention introduces beads extending in the width direction (orthogonal to the axial direction of the core member) to the corrugated core member. This adds structural reinforcement in a new dimension, enabling the panel to resist loads from multiple directions while maintaining the lightweight CFRP construction.
Solution Approach 2:
The invention uses CFRP (carbon fiber reinforced plastic) for the flat plate panels and incorporates beads made from the same or similar composite material. This composite structure combines the lightweight properties of CFRP with the geometric reinforcement of the bead pattern, achieving both weight reduction and enhanced multi-directional rigidity.
2Strength
If beads are added to extend in the width direction, then rigidity to collision load is improved, but manufacturing complexity increases
Solution Approach 1:
The invention integrates the beads directly into the corrugated core member structure, forming them as a unified component during the molding process. This merging of the bead reinforcement features with the core member geometry eliminates the need for separate manufacturing steps or assembly operations, thereby reducing overall manufacturing complexity despite the enhanced structural functionality.
Data Source
AI summary
A vehicle panel structure that includes a first panel that is provided to a vehicle, the first panel being made from a fiber reinforced resin and including a plurality of first beads extending along one direction, and a second panel that is disposed so as to face the first panel and that includes a plurality of second beads extending along another direction intersecting with the first beads.