One-Piece Front Body Casting for Crash Force Transfer
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Solution Overview
Problem
The existing front engine bay frame structures in vehicles are structurally complex and inefficient in transferring crash forces, leading to significant intrusion and damage to occupants during collisions.
Innovation Solution
A one-piece casting structure for the front body, incorporating a front longitudinal beam, transverse beam, shock tower, and upper end beam, with integrated mounting holes and energy-absorbing regions, enhances coherence and crash performance by allowing continuous force transfer and energy absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the front body is formed by welding together dozens of components, then the structural complexity is high, but the crash force transfer capability is poor and intrusion is great
Solution Approach 1:
The patent merges multiple separate components (front longitudinal beam, transverse beam, shock tower, upper end beam) into a single integrated casting structure. This consolidation eliminates the weaknesses of welded assemblies while maintaining structural integrity, enabling effective crash force transfer without compromising strength.
Solution Approach 2:
The integrated casting structure incorporates distinct functional segments (front longitudinal beam, transverse beam, shock tower, upper end beam) with specialized geometries optimized for specific crash response functions, allowing each segment to perform its role effectively while maintaining overall structural coherence.
2Ease of manufacture
If the front body is formed by welding together dozens of components, then the assembly process is complex, but the manufacturing time is long
Solution Approach 1:
By consolidating multiple components into a single casting, the patent eliminates the complex assembly process required for welding dozens of separate parts. The integrated structure is manufactured as one piece, dramatically reducing assembly time and complexity while maintaining manufacturing feasibility through modern casting techniques.
3Stability of the object's composition
If the front body uses a one-piece casting structure, then the coherence is improved, but the manufacturing precision requirements are higher
Solution Approach 1:
The casting design incorporates localized quality variations with different wall thicknesses and structural densities in different regions. This allows the single-piece structure to achieve high overall coherence while managing manufacturing precision requirements through strategic thickening and thinning of specific areas to optimize both structural integrity and manufacturability.
Data Source
Figure 1
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AI summary
A front body (10), a vehicle (1000), and a body connection structure (100) are provided. The front body (10) is used for a vehicle and includes: a front longitudinal beam (11), a transverse beam (12) connected with the front longitudinal beam, a shock tower (13) disposed above the front longitudinal beam, and an upper end beam (14) connected with the shock tower and the front longitudinal beam. The front longitudinal beam (11) , the transverse beam (12), the shock tower (13), and the upper end beam (14) are in a one-piece casting structure. In the front body (10), the vehicle (1000), and the body connection structure (100), the formation into a one-piece casting structure enables the front body to be more coherent, by way of which crash forces can be well transferred on the front body. Anti-crash performance of the front body is thus improved, and meanwhile intrusion into a front end of the vehicle can be decreased to reduce damage to occupants in the vehicle. (Figure 1)