Vibration Transmitting Member Gradient Cross-Section
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Solution Overview
Problem
Existing ultrasonic treatment instruments face challenges in maintaining consistent ultrasonic vibration amplitude and resonance frequency due to variations in material properties, leading to inconsistent treatment outcomes.
Innovation Solution
A vibration transmitting member with segments designed to resonate at a predetermined frequency, featuring recess segments with specific longitudinal dimensions and cross-sectional areas, and supported by liner members to stabilize vibration transmission, ensuring consistent resonance and reduced material property variance effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If material properties vary in existing ultrasonic treatment instruments, then manufacturing flexibility is improved, but ultrasonic vibration amplitude consistency deteriorates
Solution Approach 1:
The patent applies parameter changes by modifying the geometric parameters of the vibration transmitting member, specifically the cross-sectional area S(x) as a function of position x. The formula S(x) = S0 * (1 - αx)^2 defines how the cross-sectional area varies along the length of the member to compensate for material property variations and maintain consistent ultrasonic vibration amplitude and resonance frequency across different material batches.
Solution Approach 2:
The patent implements local quality by creating a non-uniform cross-sectional area distribution along the vibration transmitting member. Different sections of the member have different cross-sectional areas, with the area being largest at the ultrasonic transducer attachment point and gradually decreasing toward the distal end. This localized variation in geometry compensates for material property variations at different positions.
2Adaptability or versatility
If material properties vary in existing ultrasonic treatment instruments, then manufacturing flexibility is improved, but resonance frequency consistency deteriorates
Solution Approach 1:
The patent uses parameter changes to maintain resonance frequency consistency by defining the cross-sectional area S(x) as a specific function of position. The parameter α in the formula S(x) = S0 * (1 - αx)^2 is carefully selected to ensure that the resonance frequency remains within the desired range (40-50 kHz) even when material properties vary, thereby decoupling resonance frequency from material property variations.
Solution Approach 2:
The patent applies preliminary action by pre-calculating and pre-designing the cross-sectional area distribution before manufacturing. The gradient cross-section is designed in advance based on the formula S(x) = S0 * (1 - αx)^2, so that when materials with varying properties are used, the resonance frequency and vibration amplitude remain consistent without requiring post-manufacturing adjustment.
3Reliability
If gradient cross-section design is implemented, then vibration transmission stability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent manages manufacturing precision requirements by providing a clear mathematical formula S(x) = S0 * (1 - αx)^2 that defines the cross-sectional area distribution. This formula serves as a precise manufacturing guideline, allowing manufacturers to control the gradient cross-section with confidence. The parameter α can be optimized based on specific application requirements, providing flexibility in meeting precision requirements.
Solution Approach 2:
The patent applies preliminary action by performing theoretical calculations and optimization before manufacturing to determine the appropriate value of parameter α. This preliminary design phase ensures that the gradient cross-section achieves the desired vibration transmission stability while setting realistic and achievable manufacturing precision targets. The formula is derived based on ultrasonic wave propagation theory, ensuring both performance and manufacturability.
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 ensures stable ultrasonic vibration amplitude and resonance frequency across different material properties, enhancing treatment consistency and reducing manufacturing complexities, while maintaining uniform performance across products.
Implementation Method 1
an ultrasonic transducer configured to vibrate the vibration transmitting member at a predetermined resonance frequency by transmitting ultrasonic vibration
Implementation Method 2
vibrate the vibration transmitting member at a predetermined resonance frequency
Data Source
AI summary
Each of segments of a vibration transmitting member has a dimension of a half-wave length between mutually neighboring vibration anti-nodes and sets a vibration node as a center. In each of recess segments included in the segments, the vibration node is located in a groove, and an intermediate extension extends from a proximal end to a distal end in the groove in a longitudinal direction. At least two of the recess segments are different from each other with respect to at least one of a dimension in the longitudinal direction of the intermediate extension and a cross-sectional area perpendicular to the longitudinal direction of the intermediate extension.