Anti-Vibration Mount Bush Structure to Prevent Over-Compression
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Solution Overview
Problem
Existing anti-vibration mounts for machinery are limited in effectively isolating vibrations, particularly in terms of acoustic vibration isolation, as they often lead to over-compression of vibration dampening materials, reducing their effectiveness.
Innovation Solution
An anti-vibration apparatus featuring a rigid elongate core with a vibration dampening material having recessed portions on its surface, combined with end cap washers that provide additional expansion space to prevent over-compression and optimize the rigidity of the dampening material, allowing for enhanced vibration suppression across various orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vibration dampening material is made solid without recesses, then the structural integrity is improved, but the material becomes prone to over-compression which reduces its vibration damping effectiveness
Solution Approach 1:
The vibration dampening material incorporates recessed portions that create a porous or cellular structure. These recesses allow the material to compress without collapsing, maintaining its damping effectiveness while preserving structural integrity. The recessed portions act as void spaces that enable controlled deformation under load.
Solution Approach 2:
The recessed portions are pre-formed into the vibration dampening material to provide built-in compression relief. This beforehand cushioning allows the material to accommodate compressive forces from machine weight and vibrations without undergoing excessive compression that would compromise its damping properties.
2Object-affected harmful factors
If the vibration dampening material is made softer to improve vibration isolation, then the vibration suppression is improved, but the material cannot support the machine weight without over-compression
Solution Approach 1:
The recessed portions create a porous structure that allows the softer vibration dampening material to support compressive loads without over-compression. The void spaces provide room for compression while maintaining the material's softness and vibration isolation properties.
Solution Approach 2:
The bush combines a rigid core structure with a softer vibration dampening material featuring recesses. This composite construction allows the rigid core to support the machine weight while the recessed dampening material provides vibration isolation without undergoing excessive compression.
3Reliability
If the bush is designed for vertical orientation only, then the vibration suppression performance is optimized, but the device lacks versatility for different mounting orientations
Solution Approach 1:
The bush design with recessed portions in the vibration dampening material creates a structure that performs effectively in multiple orientations. The recesses provide compression relief regardless of the direction of gravitational force, allowing the device to function in vertical, horizontal, or angled mounting positions while maintaining vibration suppression performance.
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 improves acoustic vibration isolation by preventing over-compression of the vibration dampening material, maintaining its effectiveness and enabling the anti-vibration mount to function effectively in both vertical and horizontal orientations, thus providing superior vibration suppression performance.
Implementation Method 1
a vibration dampening material, such as for example an elastomer material coating the outer surface of the core
Implementation Method 2
the vibration dampening material further comprises a plurality of recessed portions on its surface
Data Source
Figure 1a~1b
Figure 2a~2c
Figure 3a~3c
AI summary
An anti-vibration apparatus (20; 30) comprising a bush (230; 330), said bush (230; 330) comprising a substantially rigid, elongate core (260; 360), covered in a vibration dampening material (240; 340) having at least one end cap washer (210a, 210b; 310a, 310b), configured in that the bush (230; 330) engages with the end cap washer (210a, 210b; 310a, 310b) to cover the end of the elongate core (260; 360), wherein the vibration dampening material (240; 340) further comprises a plurality of recessed portions (232) on its surface.