Resonator Geometry for Uniform Vibration Transfer to Flowable Media
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Solution Overview
Problem
Existing devices for transmitting mechanical vibrations to flowable media often result in non-uniform normal amplitudes across the resonator surface, limiting efficient power transmission due to varying amplitude vectors relative to the normal vectors of surface points.
Innovation Solution
A device is designed to maintain substantially uniform normal amplitudes across a large portion of the resonator surface during resonant vibrations, with amplitude vectors not being substantially parallel to the normal vectors for more than 50% of the effective surface, achieved through a rotationally symmetrical, rod-shaped resonator with specific geometric configurations and material properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional resonators are used for transmitting mechanical vibrations to flowable media, then power transmission is achieved, but the normal amplitudes across the resonator surface are non-uniform, limiting efficient power transmission
Solution Approach 1:
The resonator surface is divided into multiple zones with different geometric characteristics. Each zone is designed to produce specific amplitude characteristics, with the overall configuration ensuring uniform normal amplitudes across the entire effective surface. This local differentiation allows precise control of vibration distribution.
Solution Approach 2:
The resonator geometry is optimized by adjusting key parameters such as diameter, length, and surface curvature to achieve uniform normal amplitudes. The amplitude vector orientation is controlled through geometric parameter selection, ensuring that for more than 50% of the effective surface, the amplitude vector is not substantially parallel to the normal vector, thereby maintaining uniform power transmission density.
2Power
If the amplitude vector is parallel to the normal vector at most surface points, then directional vibration is achieved, but power transmission efficiency is reduced due to non-uniform amplitude distribution
Solution Approach 1:
The resonator employs asymmetric vibration modes where the amplitude vector orientation deliberately deviates from the normal vector direction at more than 50% of the effective surface. This asymmetric orientation pattern, combined with specific geometric design, creates uniform normal amplitudes across the surface, optimizing power transmission efficiency.
Solution Approach 2:
The resonator utilizes curved surface geometry, specifically a rotationally symmetrical rod-shaped design with optimized curvature characteristics. This curvature enables the amplitude vectors to maintain appropriate orientations relative to the surface normals, ensuring uniform normal amplitudes while maintaining structural integrity and resonant properties.
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 allows for uniform effective amplitude distribution over a large resonator surface, enhancing mechanical power transmission to flowable media, with over 80% of the surface maintaining amplitudes within a narrow range around the mean, significantly improving energy transfer efficiency.
Implementation Method 1
A resonator may be excited to resonant vibration at any surface point, several arbitrary surface points, or one or more partial surfaces. A resonator can have multiple resonant frequencies.
Implementation Method 2
The mechanical power transmitted by a resonator via an effective surface to a flowable medium depends, among other things, on the properties of the flowable medium, such as temperature, viscosity or pressure, on the size of the effective surface and on the normal amplitude of the effective surface points.
Implementation Method 3
The resonator is mechanically connected to an electro-mechanical vibration exciter, which converts electrical vibrations piezoelectrically or magnetostrictively into mechanical vibrations.
Implementation Method 4
The resonator is mechanically connected to an electro-mechanical vibration exciter, which converts electrical vibrations piezoelectrically or magnetostrictively into mechanical vibrations.
Data Source
AI summary
The invention relates to a device for transmitting mechanical vibrations to flowable media. The device is characterized in that the normal amplitudes of the effective surface points of a resonator are substantially uniform during a resonant vibration, and an amplitude vector in the effective surface points of more than 50 percent of an effective surface is not substantially parallel to the normal vector of these effective surface points.