Vehicle Frame Coupling Wall Wave Plate Crash Energy Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle frame structures face challenges in efficiently absorbing crash energy while maintaining high stiffness, which is essential for both safety and environmental sustainability.
Innovation Solution
The vehicle frame structure incorporates paired opposed wall portions and a coupling wall portion with a wave plate and parallel ribs, designed to absorb crash energy by sequential smashing and deformation, enhancing energy absorption efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a single die-casting part with multiple ribs is used to form the front body, then stiffness can be set high, but crash energy absorption is insufficient because the structure is less likely to be deformed or crushed
Solution Approach 1:
The coupling wall portion is divided into multiple crushing chambers by partition walls, creating segmented deformation zones. Each chamber can independently absorb energy through controlled collapse, enabling the structure to maintain high stiffness while effectively absorbing crash energy through progressive deformation of multiple segments
Solution Approach 2:
The wave plate portion with wave shape and parallel ribs introduces curved geometric features into the coupling wall. These curved structures facilitate controlled deformation and energy absorption during crash while maintaining overall structural stiffness, as the wave geometry allows progressive crushing along the curved paths
2Strength
If high stiffness is achieved in the vehicle frame structure, then structural integrity is improved, but the structure cannot sufficiently absorb crash energy due to reduced deformation capability
Solution Approach 1:
The coupling wall portion is designed with dynamic deformation characteristics through the wave plate geometry and partition walls. During crash, the structure transitions from a static rigid form to a dynamic crushing process where the wave plate deforms progressively through multiple chambers, allowing energy absorption while maintaining structural integrity before impact
Solution Approach 2:
The structure utilizes changes in geometric parameters of the wave plate portion, including wave amplitude, wavelength, and rib configuration, to control the deformation behavior. These parameter variations enable the coupling wall to absorb crash energy through controlled changes in its geometric configuration while maintaining overall 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
This configuration allows for efficient crash energy absorption, improving vehicle safety and contributing to a sustainable transportation system by optimizing material usage and recyclability.
Implementation Method 1
the coupling wall portion includes a wave plate portion having a wave shape in the vehicle body front-rear direction... designed to absorb crash energy by sequential smashing and deformation
Data Source
AI summary
A first portion of a side frame as a vehicle frame structure includes: paired opposed wall portions extending in a vehicle body front-rear direction; and a coupling wall portion extending in the vehicle body front-rear direction and coupling the paired opposed wall portions to each other, and the coupling wall portion includes a wave plate portion having a wave shape in the vehicle body front-rear direction and a parallel rib formed on the wave plate portion to be parallel to the paired opposed wall portions.