Tubular Vibrating Element Connector Between Nodes to Reduce Damping
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Solution Overview
Problem
Vibrating devices face challenges in reducing leakage and damping of vibrations when supported at positions near nodes, leading to inefficiencies in applications like optical detection apparatuses, as displacement and rotation moments cause vibration leakage and damping.
Innovation Solution
A vibrating device design featuring a tubular vibrating body with nodes at different positions along its axial direction, where a connector is positioned between these nodes to minimize axial displacement and rotation moments, thereby reducing vibration leakage and damping when fixed to an external object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the vibrating device is supported at the node to prevent vibration leakage and damping, then vibration leakage is reduced, but it is very difficult to accurately support the vibrating device at the node
Solution Approach 1:
The patent introduces a support structure that includes a support body with a support surface positioned near the node, and a damping member that contacts the support surface. This intermediary damping member acts as a mediator between the vibrating device and the external object, providing effective vibration leakage prevention even when the support position is slightly offset from the exact node location.
2Manufacturing precision
If the vibrating device is supported at a position near the node, then support accuracy is improved, but displacement during vibration increases causing leakage and damping
Solution Approach 1:
The damping member serves as an intermediary that compensates for the displacement occurring during vibration when supported near the node. By contacting the support surface, it effectively reduces the harmful effects of the increased displacement, preventing vibration leakage and damping.
Solution Approach 2:
The patent changes the physical state or properties by introducing a damping member with specific damping characteristics. This damping member absorbs or dissipates the vibrational energy that would otherwise cause leakage, effectively changing the energy dissipation parameter of the support system.
3Loss of energy
If the end of the support at the node is connected to the external object, then node support is achieved, but rotation moment about the node is applied to the external object
Solution Approach 1:
The damping member acts as an intermediary between the support body and the external object. It absorbs or dissipates the rotation moment generated during vibration, preventing this moment from being transmitted to the external object while still maintaining effective node support.
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 design effectively reduces vibration leakage and damping by minimizing axial displacement and rotation moments, enhancing the performance of vibrating devices and optical detection apparatuses.
Implementation Method 1
The vibrating body vibrates in a breathing vibration mode to generate a first node and a second node on the vibrating element at different positions in the axial direction
Data Source
AI summary
A vibrating device includes a vibrating element, a support, and a connector. The vibrating element includes a vibrating body that is tubular and includes a first opening end surface and a second opening end surface. The support extends in an axial direction and supports the vibrating body, the axial direction being a direction connecting the first opening end surface and the second opening end surface of the vibrating body. The connector connects the vibrating body and the support to each other. The vibrating body vibrates in a breathing vibration mode to generate a first node and a second node on the vibrating element at different positions in the axial direction. The connector is positioned between the first node and the second node.