Wave-Shaped Lower Absorber Reinforcement for Vehicle Front Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle front portion designs that project the design surface furthest outward for prompt reaction force exertion compromise the flexibility of the vehicle's front end, as they require a rigid structure to absorb collision energy effectively, limiting design flexibility and protection range.
Innovation Solution
A vehicle front portion structure featuring a lower absorber with a reinforcement member in the shape of alternating upward and downward protruding parts, which resists deflection and promptly transfers collision loads to load-bearing members, allowing for earlier reaction force activation even with a design surface positioned further rearward, thereby enhancing flexibility and protection range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the design surface is projected furthest outward at the installation height of the lower absorber, then the reaction force is exerted promptly, but the degree of flexibility in design of the vehicle front end is decreased
Solution Approach 1:
The lower absorber is divided into multiple sections along its length, with reinforcement members strategically positioned at specific segments. This segmentation allows the front portion to maintain structural rigidity for prompt reaction force while the overall design surface can be flexibly positioned rearward, resolving the contradiction between speed of reaction and design flexibility
Solution Approach 2:
Reinforcement members are provided at specific locations of the lower absorber rather than uniformly throughout. This local reinforcement approach maintains structural integrity where needed for rapid reaction force generation while allowing other areas to accommodate flexible design surface positioning, thus resolving the contradiction between prompt reaction and design adaptability
2Loss of time
If the lower absorber is equipped with a reinforcement member having alternating upward and downward protruding parts, then the collision load is promptly transferred to the load bearing member, but the structural complexity is increased
Solution Approach 1:
The reinforcement member features a wave-shaped cross-section with alternating upward and downward protruding parts, creating a curved, three-dimensional structure. This geometric configuration provides multiple load transfer paths and enhances structural rigidity without requiring additional separate components, thus achieving prompt load transfer while controlling structural complexity through elegant geometric design
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
This configuration ensures reliable protection of the collision body by enabling early reaction force activation and broadening the protected area while maintaining improved design flexibility, as evidenced by the increased reaction force peak and broader coverage.
Implementation Method 1
at least a part of the lower absorber is equipped with a reinforcement member which is formed, in cross section, in a shape of substantially a wave composed of a series of upward protruding parts protruded upward of the vehicle and downward protruding parts protruded downward of the vehicle
Data Source
AI summary
A vehicle front portion structure includes a lower absorber installed in a lower region of a vehicle front portion and having a longer length in a width direction of a vehicle, at least one load bearing member disposed on a rear side of the lower absorber and connected to the lower absorber so as to receive a load transferred from the lower absorber, in which at least a part of the lower absorber is equipped with a reinforcement member, and the reinforcement member is formed, in cross section, in a shape of substantially a wave composed of a series of upward protruding parts protruded upward of the vehicle and downward protruding parts protruded downward of the vehicle, the upward and downward protruding parts alternating along the width direction of the vehicle.