功率超声珩磨声振子系统有限元分析及优化

The finite element analyze and optimization about the tool head of the power ultrasonic honing system

功率超声珩磨振动控制技术的主要部分在于其振子系统,其主要问题在于在超声频率范围内难以获得其稳定的振动状态,从而使超声振动加载上去之后难以实现能量利用的最大化。本研究通过改进Φ150mm功率超声立式珩磨装置的声振子系统的挠性杆,并对四种不同情况进行有限元分析,得到了它们在(14～22)kHz频率范围内的振幅分布情况。据此成功优化了原来的声振子系统。

The major control technology of power ultrasonic honing system is its tool head. It is difficult to get the steady vibratile situation in the ultrasonic frequency range ,so it is difficult to make the best of the energy when the ultrasonic vibration is loaded. The flexible pole of the ultrasonic vibration honing vertical equipment is optimized and the four situations are analyzed by finite element method,thus the dis- tribution of the amplitude in （14-22） kHz is acquired. According to the result,the original tool head is op- timized successfully.