Three-Point Suspension Link Using Fiber-Reinforced Plastic Composite
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Solution Overview
Problem
Conventional three-point suspension links for commercial vehicles face challenges in achieving a balance between lightweight construction and maintaining sufficient stiffness under high longitudinal and transverse loads, particularly during cornering, which affects the vehicle's driving characteristics.
Innovation Solution
A three-point suspension link design featuring a fiber-reinforced plastic composite structure with a stabilization layer and supporting winding, where the stabilization layer surrounds the core element and load-introducing elements, and the supporting winding is bonded to both, providing enhanced load distribution and reduced bending stresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a metal-based suspension link is used, then stiffness under high longitudinal and transverse loads is maintained, but mass increases
Solution Approach 1:
The patent applies fiber-reinforced plastic composite materials (specifically carbon fiber reinforced plastic) to construct the suspension link. This composite material provides high specific stiffness and strength, enabling the link to maintain structural rigidity under high longitudinal and transverse loads while significantly reducing mass compared to traditional metal-based suspension links.
2Weight of moving object
If lightweight construction is prioritized, then mass is reduced, but stiffness under high loads may be compromised
Solution Approach 1:
The patent implements local quality optimization through strategically placed reinforcement elements within the composite structure. The suspension link features localized reinforcement zones at critical stress areas (such as mounting points and load transfer zones) while maintaining lighter material distribution in less stressed regions. This approach ensures adequate stiffness and reliability under cornering loads while minimizing overall mass.
Solution Approach 2:
The patent utilizes three-dimensional fiber orientation and layered composite construction to achieve optimal mechanical properties. By arranging carbon fibers in multiple directions and layers, the structure gains enhanced stiffness in all critical load directions (longitudinal, transverse, and vertical) while maintaining lightweight characteristics. This dimensional approach to material arrangement ensures reliable performance under complex cornering loads.
Data Source
AI summary
A three-point suspension link for a chassis of a vehicle has two arms and a central bearing area. Each arm has a bearing area. The three-point suspension link comprises two load-introducing elements, a central load-introducing element, a stabilization layer, a core element and a supporting winding. The stabilization layer and the supporting winding are formed from a fiber reinforced plastic composite material. A load-introducing element is arranged at every bearing area. The central load-introducing element is arranged at the central bearing area. The core element is surrounded by the stabilization layer in a subarea. The supporting winding surrounds the load-introducing elements, the central load-introducing element, the stabilization layer and the core element in a subarea.