超声电解复合加工装置的振动系统优化设计

为设计精密超声电解复合加工深小孔装置的振动系统，设计了1/2波长超声振动系统和以局部共振理论为指导的工具系统。基于波动方程，分别建立1/4波长超声换能器和变幅杆的解析模型，得到换能器和变幅杆的结构尺寸。借助有限元分析软件ANSYS对理论设计的变幅杆和超声振动系统进行动力学分析、压电分析和优化设计，得到了变幅杆和超声振动系统的优化模型。分析结果表明，有限元法对变幅杆和超声振动系统的设计制作具有指导意义，缩短了设计周期，降低了设计成本，所设计的超声振动系统具有良好的性能。

Optimum Design of Ultrasonic Vibration System of Combined Ultrasonic and Electrochemical Device

The 1/2 wavelength ultrasonic vibration system and the tool system with the guide of the local resonance theory were designed for the precision tool vibration system of combined ultrasonic and electrochemical machine for deep small holes. Based on the wave equation, an analytical model of 1/4 wavelength ultrasound transducer and the horn were established respectively. The structure sizes of the transducer and the horn size were obtained. By using the ANSYS software, the dynamics analysis, piezoelectric analysis and optimum design of the horn and the ultrasonic vibration system were accomplished and the optimum models of the horn and the ultrasonic vibration system were achieved. The analysis results show that the FEM is a useful method to design the horn and the ultrasonic vibration system, reduces the design cycle and design costs. The designed ultrasonic vibration system has good properties.