Suspension Arm Reinforcing Structure for Rigidity
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Solution Overview
Problem
Suspension arms in vehicle suspensions lack sufficient rigidity to effectively withstand inputs from road surfaces, affecting ride comfort, stability, and steering feeling.
Innovation Solution
Incorporating an annular reinforcing member around the through-holes of the suspension arm attachment portions, formed via a burring process and bonded with adhesive, to enhance structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the suspension arm uses a simple structure without additional reinforcing elements, then the manufacturing process is simple and cost is low, but the rigidity is insufficient to withstand road surface inputs
Solution Approach 1:
The patent applies local quality by adding reinforcing members specifically at the attachment portions where rigidity is most needed, rather than uniformly reinforcing the entire suspension arm. The reinforcing members are positioned at the ends of the main body where connection to the vehicle body and knuckle occurs, providing targeted structural support exactly where road surface inputs are transmitted to the arm.
Solution Approach 2:
The patent employs composite materials by combining the base suspension arm material with reinforcing members made of different materials that provide enhanced rigidity. The reinforcing members are bonded to the main body using adhesive, creating a composite structure that leverages the strengths of both materials to achieve the required rigidity while maintaining reasonable weight.
2Strength
If the suspension arm is designed with high rigidity to withstand road inputs, then ride comfort and stability improve, but the weight of the suspension arm increases
Solution Approach 1:
By concentrating the reinforcing members only at the attachment portions rather than throughout the entire suspension arm, the patent achieves the necessary rigidity improvement while minimizing the additional weight. This localized reinforcement approach ensures that material is added only where structurally necessary to withstand road surface inputs.
Solution Approach 2:
The use of composite materials allows the patent to achieve high rigidity with relatively low additional weight. The reinforcing members are bonded to the main body using adhesive, creating a lightweight composite structure that provides enhanced stiffness without the weight penalty of solidifying the entire arm.
3Strength
If reinforcing members are added to the attachment portions, then the rigidity increases, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies preliminary action by forming recesses in the attachment portions before bonding the reinforcing members. These recesses are prepared in advance to receive the reinforcing members, ensuring proper positioning and alignment. This preliminary preparation simplifies the subsequent bonding process and ensures consistent quality without requiring complex assembly operations.
Solution Approach 2:
The patent uses adhesive as an intermediary substance to bond the reinforcing members to the main body. This intermediary material simplifies the manufacturing process by allowing the reinforcing members to be attached through a straightforward bonding operation rather than requiring mechanical fastening or welding, which would be more complex and time-consuming.
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
The reinforcing structure significantly increases the suspension arm's rigidity, enabling it to better withstand road inputs and improve ride comfort, stability, and steering performance.
Implementation Method 1
bonding via an adhesive an annular reinforcing member to at least one of the pair of attachment portions
Data Source
AI summary
An object of the present invention is to provide a reinforcing structure of a suspension arm, in which high rigidity capable of withstanding any input from a road surface or the like can be given to the suspension arm. In a vehicle suspension including a plurality of suspension arms, one ends of which being connected to a vehicle body of a vehicle and the other ends of which being connected to a knuckle, a control arm includes a main body and a pair of attachment portions provided at both ends of the main body. Each of the pair of attachment portions is provided with a substantially cylindrical through-hole for connection to the vehicle body or the knuckle. At least one of the pair of attachment portions is provided with an annular reinforcing member for reinforcing around the through-hole.