基于有限元仿真修正超声振子频率差值OA

When the existing ultrasonic oscillators are adapted to multiple cutting tools with significant model differences,the same frequency cannot be used to adapt these tools due to the large frequency difference.This leads to different types of tools needing to adapt to different ultrasonic oscillators,thereby increasing processing costs,reducing processing efficiency,and not conducive to processing production.In order to solve this problem,according to the existing method of modifying the frequency difference,the frequency difference of the adaptive oscillator is modified by changing the structure of the core part of the ultrasonic oscillator.The influence of flange diameter,aperture and number of holes on the frequency difference of the adaptive vibrator is discussed by single factor experiment.The significance of these factors is explored by orthogonal experiment and the optimal parameters are determined.At the same time,finite element software is used to analyze the modal harmonious response of the adaptive vibrators.The results show that the frequency difference of the optimized adaptive vibrators is less than 1.5 kHz,the vibration shape is reasonable,and the node offset is small.The effect of adapting three different tools to the same vibrator in the center frequency range can be realized.