Aftermarket Subframe Bushing Support for Street-Racing NVH Control
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Solution Overview
Problem
Existing suspension systems for vehicles struggle to balance performance for both street and racing applications, leading to excessive NVH and component failure due to the use of urethane bushings, which are difficult to install and affect ride quality.
Innovation Solution
An after-market RS bushing support assembly featuring aluminum bushing members with specific dimensions and shapes, designed for easy installation and reduced NVH, allowing for easy conversion between street and racing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If urethane bushings are installed for racing applications, then handling performance is improved, but NVH increases and ride quality deteriorates
Solution Approach 1:
The bushing support assembly is divided into separate top and bottom bushing members that can be independently installed and removed. This segmentation allows the vehicle to switch between street and racing configurations by simply installing or removing the urethane bushing support assembly, resolving the contradiction between handling performance and NVH by enabling easy adaptation to different usage scenarios
Solution Approach 2:
The bushing support assembly incorporates height adjustments and positioning features that allow dynamic adaptation between different bushing configurations. The assembly can be positioned in multiple heights and orientations to optimize performance for either street comfort or racing handling, thereby dynamically resolving the NVH versus handling performance contradiction
2Adaptability or versatility
If urethane bushings are installed for racing applications, then handling performance is improved, but component reliability decreases due to excessive vibration
Solution Approach 1:
The bushing support assembly incorporates vibration damping features and cushioning elements that mitigate excessive vibrations before they can cause component failure. By providing beforehand cushioning, the assembly maintains component reliability even when urethane bushings are installed for racing applications, resolving the contradiction between handling performance and component reliability
3Manufacturing precision
If professional installation is required for bushing replacement, then installation quality is improved, but ease of operation deteriorates
Solution Approach 1:
The bushing support assembly is designed with user-friendly features including clear installation markings, self-aligning components, and tool-minimal installation requirements. These self-service design elements enable novice enthusiasts to perform the installation themselves while maintaining high installation quality, resolving the contradiction between installation quality and ease of operation
4Adaptability or versatility
If custom bushing support assembly is manufactured, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The bushing support assembly incorporates universal design features including standardized mounting interfaces, adjustable positioning mechanisms, and multi-functional components that can serve multiple purposes. This universality enables the assembly to adapt to different vehicle configurations and usage scenarios without requiring complex custom manufacturing, resolving the contradiction between vehicle adaptability and manufacturing complexity
Data Source
AI summary
An after-market subframe bushing support assembly that includes a RS back top bushing member formed as a disc shape with a RS back top bushing member outer diameter and a RS back top bushing member first height, and the RS back top bushing member having a rectangular center opening with rounded corners defined by a pair of RS back top bushing member long sides and a pair of RS back top bushing member short sides, and a RS back top bushing member second height in a second area between the RS back top bushing member short sides and the RS back top bushing member outer diameter. The subframe bushing support assembly reduces noise-vibration-harness compared with other solutions and can easily be installed by car enthusiasts.