摘要
超声波加工中的变幅杆能放大振幅,并将声能有效传递至工具头。为使变幅杆工作有效、可靠,进而提高零件加工的精度和效率,变幅杆必须具有良好的动态特性。由于复合型变幅杆的截面复杂,用解析法无法进行求解计算,而有限元方法能较好地解决该问题。通过模态分析并利用ANSYS有限元软件,对复合型变幅杆进行动力学分析,最终找出了最佳振动形态的工作频率。
The amplitude transformer of the ultrasonic machining can enlarge the amplitude and transfer the acoustic energy to the load efficiently. In order to make amplitude transformer work effective and reliable,it is necessary to have the dynamic characteristics for amplitude transformer.Because the section change of the composite amplitude transformer is complex,it is difficult to solve it by the traditional design method. The problem is usually solved by the finite element. The paper analyzes the cylinder-index amplitude transformer in dynamic performance by modal analysis and ANSYS computer program. Finally,the work frequency of the best form of vibration is gained.
出处
《电加工与模具》
2017年第3期61-62,67,共3页
Electromachining & Mould
基金
精密加工山西省重点实验室开放课题(20160121)
关键词
超声波加工
变幅杆
有限元
动态特性
ultrasonic machining
amplitude transformer
finite element
dynamic performance
