Non-Contact Vibration Suppression Using Ultrasonic Repulsion
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Solution Overview
Problem
Existing vibration suppression methods for objects during processing, such as cutting or polishing, often damage brittle materials due to mechanical contact or fail to maintain a stable non-contact state, leading to vibration-induced noise and precision issues.
Innovation Solution
A non-contact vibration suppressing device using first and second ultrasonic vibrators spaced apart to generate ultrasonic vibrations, applying a repelling force to hold the object in place without mechanical contact, ensuring uniform pressure and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical rollers are used to suppress vibrations, then vibration suppression effectiveness is improved, but the object is damaged due to mechanical contact
Solution Approach 1:
The patent replaces the mechanical roller contact system with an ultrasonic vibration-based non-contact system. Ultrasonic vibrators generate high-frequency vibrations that create a repelling force field, eliminating direct mechanical contact between the suppression device and the processed object, thus preventing scratches and surface damage while maintaining vibration control.
Solution Approach 2:
The patent introduces ultrasonic vibrations as an intermediary mechanism. The ultrasonic vibrators generate vibrations that interact with the object through a fluid medium (air or liquid), creating a non-contact repelling force that suppresses object vibrations without direct mechanical contact, thereby avoiding damage to brittle or sensitive materials.
2Object-affected harmful factors
If high-pressure air flow is used to suppress vibrations non-contact, then mechanical damage is avoided, but the force to maintain non-contact state is very weak
Solution Approach 1:
The patent changes the physical parameters of the vibration system by using ultrasonic frequencies (typically 20 kHz or higher) with very small amplitudes. This parameter change creates a repelling force that is significantly stronger than high-pressure air flow while maintaining non-contact conditions. The high frequency allows the system to generate sufficient holding force without mechanical contact.
Solution Approach 2:
The patent utilizes mechanical vibration at ultrasonic frequencies as the core mechanism. The ultrasonic vibrators generate high-frequency oscillations that create a dynamic repelling force field, providing strong non-contact holding force to suppress object vibrations and maintain stable positioning without the weakness inherent in high-pressure air flow methods.
3Device complexity
If only air flow rate adjustment is used to control object height, then device complexity is reduced, but uniform height adjustment is critically difficult
Solution Approach 1:
The patent implements a feedback control system where sensors detect the object's position and vibration state, and the control unit adjusts the ultrasonic vibrator parameters accordingly. This closed-loop feedback enables precise and uniform height adjustment of the object while maintaining simplicity in the overall device structure, overcoming the limitations of simple air flow rate adjustment.
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
Effectively suppresses vibrations during processing, examination, measurement, and transportation, preventing damage to brittle materials and maintaining precision by maintaining a firm non-contact state with consistent repelling force.
Implementation Method 1
generating ultrasonic vibrations and applying repelling force induced from the ultrasonic vibrations onto the object
Implementation Method 2
applying repelling force induced from the ultrasonic vibrations onto the object
Data Source
AI summary
The present invention provides a non-contact vibration suppression device comprising a first ultrasonic vibration unit and a second ultrasonic vibration unit, the device being characterized in that the first ultrasonic vibration unit and the second ultrasonic vibration unit are installed to face each other while being spaced from each other such that an object can be interposed therebetween, the first ultrasonic vibration unit and the second ultrasonic vibration unit generate ultrasonic vibrations, respectively, and apply repulsive forces, which result from the ultrasonic vibrations, to the object such that the object is constrained with no contact between the first ultrasonic vibration unit and the second ultrasonic vibration unit, thereby suppressing vibration of the object. In addition, the present invention provides an object processing method characterized by comprising the steps of: suppressing vibration of the object using the non-contact vibration suppression device; and processing the object, vibration of which has been suppressed.