Wedge-Shaped Panel Insert for Vehicle Rattle and Vibration Reduction
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Solution Overview
Problem
Vehicles experience rattling and vibration due to interior parts rubbing against each other, causing irritating noise that is difficult to eliminate.
Innovation Solution
A wedge-shaped insert with a deformable outer layer and a rigid core is designed to be inserted between interior panels, featuring a series of fusto-pyramidal body portions that narrow towards a tip, with optional ledges for secure placement, to reduce noise and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid insert is used to reduce vibration, then vibration reduction effectiveness is improved, but the insert cannot conform to irregular gaps between panels
Solution Approach 1:
The insert combines a rigid core (providing structural stability and vibration resistance) with a deformable outer layer (providing conformability to irregular gaps). This composite structure resolves the contradiction by integrating both rigid and flexible properties in a single component, allowing the insert to maintain its shape while adapting to the gap geometry.
Solution Approach 2:
Different portions of the insert have different mechanical properties: the core provides rigidity where structural support is needed, while the outer layer provides deformability where contact with irregular panel surfaces occurs. This local differentiation of material properties allows the insert to simultaneously achieve vibration reduction and adaptability.
2Reliability
If a complex multi-component insert is used to reduce noise, then noise reduction effectiveness is improved, but device complexity increases
Solution Approach 1:
The rigid core and deformable outer layer are combined into a single integrated insert component rather than separate assemblies. This merging provides the noise reduction benefits of both rigid and flexible structures while simplifying installation and reducing the number of parts, thereby decreasing overall device complexity.
Solution Approach 2:
The composite construction of rigid core plus deformable coating creates a multi-functional component that achieves superior noise reduction without requiring multiple separate components, thus maintaining simplicity in the overall system while improving effectiveness.
3Adaptability or versatility
If a deformable insert is used to conform to gaps, then adaptability to irregular surfaces is improved, but vibration reduction effectiveness decreases
Solution Approach 1:
The insert uses a composite structure where the deformable outer layer conforms to the irregular gap geometry while the rigid core maintains structural integrity and vibration resistance. The combination allows the insert to adapt to surfaces without sacrificing its ability to reduce vibration.
Solution Approach 2:
The deformable outer layer is applied locally to the surface that contacts the panels, providing conformability where needed, while the rigid core provides the structural backbone for vibration reduction throughout the entire insert component.
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
Effectively reduces or eliminates rattling noise and vibration by securing the insert between panels, providing a stable and noise-reducing solution.
Implementation Method 1
at least one deformable outer layer having an internal cavity
Implementation Method 2
at least one rigid core disposed within the cavity of the outer layer
Implementation Method 3
insert for reducing noise caused by a first surface contacting a second surface
Data Source
AI summary
A tiered, wedge-shaped insert for reducing noise and/or vibration caused by a first surface contacting a second surface, the insert having at least one upper body portion forming a top surface of the insert, one or more middle body portions, each body portion have a pair of ledges that extend along opposed front and rear surfaces of the insert, and a wedge-shaped tip, wherein the middle body portions are disposed between the upper portion and the tip. A generally wedge-shaped insert having a top surface, a wedge-shaped bottom portion, opposed front and back surfaces, and two opposed side surfaces.


