Cross-Sectional Test Support for Side Collision Evaluation
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Solution Overview
Problem
Current methods for evaluating the side collision performance of automobile structural members are costly, time-consuming, and limited in scope, often requiring real-vehicle tests that are impractical for material and parts manufacturers, and existing collision test techniques may not accurately simulate the deformation behaviors of side sills and roof rails during side collisions.
Innovation Solution
A test sample support with an open cross-sectional design, made from angle steels or other metals, which provides appropriate torsional and bending rigidity to simulate the deformation of structural members during side collisions, allowing for accurate evaluation without the need for real-vehicle tests, and includes a collision test apparatus with an impactor, camera, and measurement instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-vehicle tests are performed to evaluate side collision performance, then evaluation accuracy is improved, but test cost and time consumption increase significantly
Solution Approach 1:
The patent creates a simplified test setup that copies only the essential elements needed for collision evaluation. Instead of using a complete proto-type vehicle, it extracts and tests the critical structural members (center pillar, side sill, roof rail) in isolation or simplified assembly, achieving accurate evaluation without the time and cost of full vehicle fabrication and testing
Solution Approach 2:
The patent extracts the key structural members from the complete vehicle system and tests them separately. By taking out the center pillar, side sill, and roof rail from the full vehicle context and testing them as isolated components or simplified assemblies, the evaluation process becomes much faster and less costly while maintaining accuracy for the specific structural members being evaluated
2Measurement precision
If proto-type vehicles are fabricated for testing, then comprehensive performance evaluation is improved, but fabrication cost and time increase
Solution Approach 1:
The patent extracts only the necessary structural members (center pillar, side sill, roof rail) from the complete vehicle and tests them in isolation or simplified assembly. This eliminates the need to fabricate entire proto-type vehicles, dramatically reducing manufacturing complexity and cost while still providing comprehensive performance evaluation for the extracted structural members
Solution Approach 2:
The patent segments the vehicle structure into discrete testable components (center pillar, side sill, roof rail) and evaluates them separately or in simplified combinations. This segmentation allows each component to be tested independently without requiring the complete vehicle assembly, reducing fabrication burden while maintaining evaluation comprehensiveness
3Productivity
If simplified test setups are used instead of real-vehicle tests, then test efficiency is improved, but deformation simulation accuracy may deteriorate
Solution Approach 1:
The patent applies local quality by providing enhanced support and constraint specifically at the critical connection points of the structural members (where they connect to the body or each other), while allowing the rest of the structure to behave naturally. This localized attention to key areas ensures accurate deformation simulation without requiring complete vehicle-level complexity, maintaining test efficiency
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
Enables convenient and cost-effective evaluation of side collision performance, with results comparable to real-vehicle tests, by accurately replicating torsional and bending deformations, and allowing for easy fabrication and camera observation of deformation behaviors.
Implementation Method 1
a linear main body, whose cross section is an open section... provides appropriate torsional and bending rigidity
Implementation Method 2
provides appropriate torsional and bending rigidity to simulate the deformation of structural members
Implementation Method 3
an impactor for applying impact to the structural member from its side
Data Source
AI summary
A test sample support for use in a collision test using a center pillar assembly of an automobile body as a test sample, includes a linear main body, a first attachment part, and a second attachment part. A cross section of the main body of the test sample support is an open section of cross-shaped. The first attachment part is secured to the center pillar assembly. The second attachment part is secured to a collision test apparatus. This makes it possible to perform a collision test conveniently and at a low cost, thereby accurately evaluating side collision performance of the center pillar assembly.