Vehicle Suspension Lower Pad Segmentation for Vibration Isolation
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Solution Overview
Problem
The existing multi-link rear suspension systems for vehicles face issues where the lower pad, made of rubber, can be lifted and separated from the lower arm due to the elastic force of the spring, leading to ineffective vibration absorption.
Innovation Solution
A suspension system design featuring a lower pad composed of an elastically deformable part made of rubber and a base part made of engineering plastic, securely coupled to the lower arm, which prevents separation and maintains vibration absorption functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lower pad is made of rubber material to absorb vibration, then the vibration absorption performance is improved, but the lower pad may be lifted and separated from the lower arm by elastic force of the spring
Solution Approach 1:
The lower pad is divided into two distinct parts: a rubber material part for vibration absorption and a metal plate part for secure attachment. This segmentation allows each part to fulfill its specific function independently, resolving the contradiction between vibration absorption and attachment stability.
Solution Approach 2:
The lower pad uses a composite structure combining rubber material and metal plate materials. The rubber material provides vibration absorption while the metal plate provides structural strength and secure attachment to the lower arm, eliminating the separation issue while maintaining vibration damping performance.
2Ease of manufacture
If a single rubber material is used for the lower pad, then manufacturing simplicity is maintained, but the lower pad cannot simultaneously ensure secure attachment and effective vibration absorption
Solution Approach 1:
By dividing the lower pad into separate rubber and metal components, each can be manufactured using optimized processes for its material properties, then assembled together. This maintains manufacturing simplicity while achieving superior dual-function performance.
Solution Approach 2:
The rubber material part and metal plate part are combined into a single integrated lower pad assembly that performs both vibration absorption and secure attachment functions simultaneously, enhancing overall reliability without significantly complicating the manufacturing process.
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 system effectively absorbs vibrations and prevents the lower pad from separating from the lower arm, ensuring consistent performance and improved ride comfort by utilizing the elastically deformable rubber part and the securely attached plastic base part.
Implementation Method 1
an elastically deformable part made of a material deformable by elastic force of the spring
Data Source
AI summary
A suspension system for a vehicle that is capable of preventing a lower pad from being separated from a lower arm by elastic force of a spring. The lower pad of the suspension system for a vehicle includes an elastically deformable part made of a material deformable by elastic force of the spring, and a base part made of a material harder than the material of the elastically deformable part, and coupled to the lower arm.