Vehicle Shield Strut Module Vibration Damping Design
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Solution Overview
Problem
Shield struts in vehicles are prone to fatigue fracture due to the great accelerations they experience, leading to vibration and potential failure over time, even with the use of damping devices.
Innovation Solution
A shield strut module comprising a steel or aluminum shield strut with a damping module that includes a rubber bushing and a housing with two interconnected elements, providing effective damping through threaded connections and secure fastening to the vehicle frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If shield struts are provided with damping devices to reduce vibration, then vibration is reduced, but device complexity increases
Solution Approach 1:
The damping device is integrated into the shield strut assembly by mounting the rubber bushing directly onto the shield strut within a housing structure. This merging of the damping function into the existing strut components reduces overall device complexity while achieving vibration reduction.
Solution Approach 2:
A housing structure serves as an intermediary component that facilitates the integration of the rubber bushing damping element with the shield strut. The housing provides a structured interface that simplifies the connection between the damping device and the strut, reducing overall assembly complexity.
2Strength
If shield struts are made robust to withstand great accelerations, then strength is improved, but weight increases
Solution Approach 1:
The shield strut assembly combines steel or aluminum Strut material with rubber damping material in a composite structure. This allows the strut to maintain sufficient strength to withstand great accelerations while the rubber component provides vibration damping, potentially reducing the overall weight compared to a purely metallic robust design.
Solution Approach 2:
The invention changes the material parameters by introducing rubber bushings with specific damping properties to the shield strut assembly. This allows optimization of the strength-to-weight ratio by selecting appropriate rubber compounds and Strut materials (steel or aluminum) to achieve the required fatigue resistance with minimal weight.
3Reliability
If damping modules are securely fastened to shield struts, then reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The damping device is segmented into modular components (rubber bushing, housing elements, fastening elements) that can be manufactured separately and then assembled. This segmentation allows each component to be optimized for its specific function while simplifying the overall manufacturing process through standardized connection interfaces.
Solution Approach 2:
The housing elements are designed with pre-formed connection features (such as threaded holes or attachment points) that enable straightforward fastening of the damping device to the shield strut. This preliminary preparation of connection interfaces during housing manufacturing reduces the complexity of the final assembly 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 solution significantly reduces the risk of fatigue fracture by effectively absorbing vibrations, extending the lifespan of the shield struts and ensuring reliable vehicle operation.
Implementation Method 1
The damping module 8 comprises at least one rubber bushing 10
Implementation Method 2
effectively absorbing vibrations, extending the lifespan of the shield struts
Data Source
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AI summary
The invention relates to a shield strut module for a vehicle, which strut module (2) comprises a shield strut (6), a damping module (8) and a housing (12), the strut module (2) further comprising a shield bracket (4), the damping module (8) comprising at least one rubber bushing (10) and the housing (12) of the damping module (8) comprising at least two housing elements (14, 16). The invention also relates to a method for assembling a shield strut module (2) for a vehicle.