Integrated Front Side Vehicle Body for Lightweight Crash Rigidity
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Solution Overview
Problem
Existing front side vehicle bodies face a challenge in achieving lightweight design without compromising rigidity, particularly in managing collision impacts to protect occupants effectively.
Innovation Solution
Integration of the front side member, shock absorber housing, and A-pillar, along with strategically designed opening portions and ribs, to enhance rigidity and energy absorption during collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the number of components is reduced to minimize weight, then the weight of the front side vehicle body is reduced, but the rigidity deteriorates
Solution Approach 1:
The patent integrates multiple components (front side member, shock absorber housing, and A-pillar) into a single integrated structure. This merging of components reduces the total number of parts and overall weight while maintaining structural rigidity through the unified design that distributes collision forces across the integrated assembly.
Solution Approach 2:
The integrated front side vehicle body utilizes composite material construction, combining different materials with complementary properties to achieve both weight reduction and rigidity enhancement. The composite structure allows optimization of each region's material properties to balance weight and strength requirements.
2Weight of moving object
If the front side vehicle body is made lightweight, then the weight is reduced, but the ability to protect occupants during frontal collision deteriorates
Solution Approach 1:
By merging the front side member, shock absorber housing, and A-pillar into one integrated structure, the patent ensures that collision forces are distributed across the entire assembly rather than concentrated on individual components. This unified structure maintains occupant protection capability while reducing overall weight.
Solution Approach 2:
The patent employs parameter changes in the integrated structure's geometry and material properties to optimize both weight and protective function. The design adjusts structural parameters such as thickness distribution, reinforcement locations, and opening configurations to achieve the right balance between weight reduction and collision protection.
3Weight of moving object
If opening portions are added to the front side member, then weight is reduced and energy absorption is improved, but structural rigidity may be compromised
Solution Approach 1:
The patent introduces opening portions (porous structure) in the front side member to reduce weight and improve energy absorption during collisions. These openings create a cellular structure that maintains adequate rigidity while significantly reducing material usage and weight, and facilitates controlled deformation to absorb impact energy.
Solution Approach 2:
The opening portions segment the solid structure of the front side member into a cellular configuration. This segmentation reduces weight and creates multiple deformation zones that can absorb collision energy progressively, while the remaining material framework maintains necessary structural rigidity.
Data Source
AI summary
A front side vehicle body for a vehicle includes: a front side member extending in a longitudinal direction of a vehicle, a shock absorber housing disposed between a front end and a rear end of the front side member and connected to the front side member, and an A-pillar connected to the rear end of the front side member. In particular, the front side member, the shock absorber housing, and the A-pillar are integrated, and a plurality of opening portions is disposed in an upward/downward direction in the front side member and opened in opposite directions or the same direction.