Nested Anti-Vibration Mount Structure for Low-Frequency Damping
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Solution Overview
Problem
Existing anti-vibration mounts are bulky and fail to adequately limit movements and vibrations during acceleration or shock phases, particularly in applications where space is limited and low natural modes are required for suspended systems.
Innovation Solution
A compact anti-vibration support with nested male and female parts made of elastomeric material, allowing for adjustable stiffness and frequency attenuation in multiple directions, incorporating a section between two plates to isolate suspended systems from their environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional anti-vibration mounts are used, then vibration isolation is provided, but the device becomes bulky and occupies excessive space
Solution Approach 1:
The patent applies nesting by placing the male part inside the female part, creating a compact nested structure. The male part extends from the first plate toward the second plate and is embedded in the elastomeric section, while the female part extends from the second plate toward the first plate. This nested configuration significantly reduces the overall volume of the anti-vibration mount while preserving its vibration isolation functionality through the elastomeric material's damping properties.
2Reliability
If traditional anti-vibration mounts are used, then vibration isolation is provided, but they fail to adequately limit movements during acceleration and shock phases
Solution Approach 1:
The patent applies local quality by creating different structural zones within the mount. The nested male and female parts provide localized mechanical constraints that limit movements during acceleration and shock, while the elastomeric section provides localized damping. This distributed local quality approach enhances movement limitation capability without requiring a uniformly complex structure throughout the entire device.
Solution Approach 2:
The patent uses composite materials by combining rigid metallic plates with nested mechanical features (male and female parts) and a flexible elastomeric section. This composite structure integrates the strengths of different materials: the metal plates provide structural integrity, the nested parts provide mechanical constraint, and the elastomer provides damping and flexibility, together achieving superior movement limitation capability.
3Reliability
If traditional anti-vibration mounts are used, then vibration isolation is provided, but the natural modes are not sufficiently low for suspended systems
Solution Approach 1:
The nested configuration of the male and female parts creates a compact structure with optimized mass distribution. This nesting allows the elastomeric section to effectively engage over a shorter distance, lowering the natural modes of the suspended system while maintaining a compact overall size. The nested structure enables the elastomer to work more efficiently in reducing natural frequencies without requiring a larger mount volume.
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 effectively limits vibration frequencies and displacements in multiple axes, supports higher mass elements, and reduces the mass of the anti-vibration support while maintaining dynamic stiffness, ensuring low cut-off frequencies and improved damping.
Implementation Method 1
a section (30) made of an elastomeric material placed between the two plates (10, 20)
Implementation Method 2
the section (30) being contained in said internal recess and making it possible, in operation, to adapt the cut-off frequencies on all the modes and in all of the X, Y and Z directions
Implementation Method 3
A male part (40) extending from one face of the first plate (10) in the direction of the second plate (20), the male part being wholly or partly embedded inside the section (30), a female part (50) extending from one face of the second plate (20) towards the first plate (10), said male and female parts being configured to be nested one inside the other
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to an anti-vibration support (100) comprising two plates (10, 20) arranged opposite each other and a section (30) composed of an elastomeric material disposed between the two plates (10, 20), the anti-vibration support (100) being characterized in that it comprises: • a male part (40), extending from a face of the first plate (10) towards the second plate (20), the male part (40) being embedded in whole or in part inside the section (30), • a female part (50) extending from a face of the second plate (20) towards the first plate (10), said male (40) and female (50) parts being configured to be fitted one into the other.