Three-Axis Plate Spring Anti-Vibration Structure for Vibration Isolation
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Solution Overview
Problem
Conventional anti-vibration devices using U-shaped leaf springs struggle to effectively inhibit vibration transmission in all three directions (X, Y, and Z) due to low rigidity in the Y-direction, leading to inadequate vibration insulation performance.
Innovation Solution
The anti-vibration device employs three elastically deformed portions shaped as plates, each vibrating in a different thickness direction to create paths for vibration transmission, enhancing the device's ability to suppress vibrations in multiple directions by utilizing sliding friction and precompression mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a U-shaped leaf spring is used for vibration insulation, then the device structure is simple, but the vibration insulation performance is inadequate due to low rigidity in the Y-direction
Solution Approach 1:
The patent transitions from a two-dimensional U-shaped leaf spring to a three-dimensional configuration with three elastically deformed portions oriented along orthogonal axes (X, Y, Z directions). Each portion has its thickness direction aligned with one of the three principal vibration directions, enabling effective vibration insulation in all three dimensions simultaneously.
Solution Approach 2:
Each elastically deformed portion is designed with specific local properties: the thickness direction of each portion is optimized to provide appropriate rigidity for its corresponding vibration direction. This allows each component to have tailored mechanical properties suited to its specific function in attenuating vibrations along a particular axis.
2Reliability
If the rigidity in the Y-direction is increased to improve vibration insulation, then the vibration insulation performance improves, but the device complexity increases
Solution Approach 1:
The patent combines three elastically deformed portions into a single integrated anti-vibration device. Instead of using separate components for each direction, the invention merges them into one unified structure that simultaneously provides vibration insulation in all three directions, reducing overall device complexity while improving performance.
Solution Approach 2:
The anti-vibration device achieves multi-functionality by incorporating three elastically deformed portions that collectively provide vibration insulation in the X, Y, and Z directions. Each portion contributes to a different directional component, making the single device capable of handling multidirectional vibrations that would otherwise require multiple separate components.
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
This configuration significantly improves anti-vibration performance by attenuating vibrations in three distinct directions, reducing resonance frequencies and enhancing durability and vibration insulation.
Implementation Method 1
a first elastically deformed portion shaped in a plate having a thickness in a first thickness direction, the first elastically deformed portion is elastically deformed by the vibration and vibrates in the first thickness direction
Implementation Method 2
a second elastically deformed portion shaped in a plate having a thickness in a second thickness direction intersecting the first thickness direction, the second elastically deformed portion is elastically deformed by the vibration and vibrates in the second thickness direction
Implementation Method 3
a third elastically deformed portion shaped in a plate having a thickness in a third thickness direction intersecting the first thickness direction and the second thickness direction, the third elastically deformed portion is elastically deformed by the vibration and vibrates in the third thickness direction
Implementation Method 4
enhancing the device's ability to suppress vibrations in multiple directions by utilizing sliding friction and precompression mechanisms
Implementation Method 5
enhancing the device's ability to suppress vibrations in multiple directions by utilizing sliding friction and precompression mechanisms
Data Source
AI summary
An anti-vibration device is secured to a vibration source and a vibration transmission portion to inhibit transmission of vibration, and includes a first elastically deformed portion, a second elastically deformed portion and a third elastically deformed portion. The first elastically deformed portion is a plate having a thickness in a first thickness direction and vibrates in the first thickness direction to configure a path for the vibration to be transmitted from the vibration source to the vibration transmission portion. The second elastically deformed portion is a plate having a thickness in a second thickness direction intersecting the first thickness direction and vibrates in the second thickness direction to configure the path. The third elastically deformed portion is a plate having a thickness in a third thickness direction intersecting the first thickness direction and the second thickness direction and vibrates in the third thickness direction to configure the path.