transducer
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Solution Overview
Problem
Existing transducers face challenges in adjusting the rigidity in both the in-plane and thickness directions of the connection portion, leading to vibration deviations and excessive hindrance of beam portion vibrations, which are not adequately addressed by current methods.
Innovation Solution
A transducer design incorporating a connection portion with at least one bent portion and a dividing slit that allows for the adjustment of rigidity in both the in-plane and thickness directions, effectively suppressing vibration deviations while relieving stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the rigidity of the connection portion is increased to suppress vibration deviations of the beam portions, then the vibration deviations are reduced, but the stress in the in-plane direction accumulates and excessively hinders the vibrations of the beam portions
Solution Approach 1:
The connection portion is divided into multiple segments by introducing dividing slits, which split the continuous structure into discrete sections. This segmentation allows the connection portion to maintain overall structural integrity while enabling localized stress relief and vibration suppression, resolving the contradiction between stability and stress accumulation.
Solution Approach 2:
The connection portion is designed with non-uniform rigidity distribution through varying the width, length, and orientation of dividing slits in different regions. This local quality adjustment enables specific areas to provide vibration suppression while other areas allow stress relief, simultaneously achieving both contradictory requirements.
2Adaptability or versatility
If the dimensions of the connection portion are adjusted to change its rigidity, then the rigidity can be modified to some extent, but the adjustment range is limited and cannot independently control in-plane and thickness direction rigidity
Solution Approach 1:
The connection portion incorporates bent portions with adjustable curvature radii and angles, transforming the rigid structure into a more dynamic configuration. This allows the rigidity to be adjusted independently in different directions by modifying the bend geometry, significantly expanding the adjustment range without proportionally increasing structural complexity.
Solution Approach 2:
The design transitions from adjusting rigidity solely through in-plane dimensional changes to incorporating out-of-plane bent portions. This dimensional extension enables independent control of rigidity in both in-plane and thickness directions, providing two-degree-of-freedom adjustment capability.
Data Source
AI summary
A transducer that includes: a base portion; a plurality of beam portions each having a fixed end portion connected to the base portion and a crest portion located close to a center of the base portion on a side thereof opposite to the fixed end portion, the plurality of beam portions each extending from the fixed end portion toward the crest portion; and a connection portion that connects a pair of beam portions of the plurality of beam portions to each other, the pair of beam portions being adjacent to each other in a peripheral direction of the base portion, wherein the connection portion includes: at least one bent portion, and at least one dividing slit in the connection portion, the at least one dividing slit dividing the connection portion such that the connection portion is partially branched and rejoined.