Modular Door Beam Assembly with Slip-Fit Collars
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing protective beam structures for vehicles have complex designs and do not allow for movement during assembly, which can lead to installation challenges and reduced effectiveness in absorbing crash forces.
Innovation Solution
A modular beam assembly comprising an elongate beam, collars, and a retaining cap, with a slip fit design and curable adhesive material, allowing for relative displacement before curing to simplify assembly and enhance impact absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fixed protective beam structure is used, then structural strength is improved, but assembly complexity increases and manufacturing precision requirements worsen
Solution Approach 1:
The protective beam assembly is divided into separate modular components: the beam itself, collars that position it, and a retaining cap that secures it. This segmentation allows each component to be manufactured independently with standard tolerances and assembled through simple sequential steps (insert beam, add collars, secure with cap), dramatically reducing assembly complexity while maintaining structural integrity through the coordinated arrangement of these simplified parts.
2Strength
If a fixed protective beam structure is used, then structural strength is improved, but manufacturing precision requirements worsen
Solution Approach 1:
The collars are pre-positioned on the beam at the correct spacing and orientation before final assembly. These collars act as preliminary fixtures that guide the beam into proper alignment with the door structure during installation. This preliminary positioning action eliminates the need for high-precision manufacturing of the beam itself, as the collars provide the necessary alignment references during assembly.
3Ease of operation
If a modular beam assembly with slip fit design is used, then ease of assembly is improved, but structural strength worsens
Solution Approach 1:
The assembly transitions from a static fixed connection to a dynamic slip-fit connection that allows controlled movement. The beam can slide within the collars during assembly and under impact loads, enabling the structure to absorb energy through controlled deformation. The retaining cap provides just enough constraint to maintain structural integrity while permitting the dynamic movement necessary for impact absorption, resolving the contradiction between ease of assembly and structural strength.
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 modular beam assembly provides improved structural reinforcement, reduced manufacturing complexity, and enhanced impact absorption by allowing for axial displacement and simplified installation, while minimizing heat-related issues during welding.
Implementation Method 1
a curable adhesive material... The adhesive material is applied on at least one of the inner surface of at least one collar, a portion of the outer surface of the elongate beam located within a collar, and the surface of the portion of the retaining cap that is inserted into the end of the elongate beam. The collars, elongate beam, and retaining cap are fixed relative to each other once the adhesive material is cured.
Data Source
AI summary
A modular beam assembly for installation on an automobile panel is provided. The modular beam assembly has an elongate beam inserted through a plurality of collars forming a slip fit and a retaining cap inserted on at least one end of the elongate beam to retain the elongate beam within the collars. A heat-curable adhesive material may be applied to the collars, the elongate beam, and the retaining cap. The assembly allows displacement of the elongate beam within the collars until the adhesive material is cured.