Key parts including piezoelectric transducer and amplitude transformer with a cylindrical hole in the center,and flexural vibration disk are analyzed and calculated.

• 提出了珩磨杆、珩磨头体均不振动的设计思想,分析计算了中心有圆柱孔的压电换能器和变幅杆,以及弯曲振动圆盘等关键部分。