基于虚拟仪器的超声磨削振动特性实验研究

Study on Ultrasonic Grinding Vibrations Characteristic Experiment Based on Hypothesized Instrument

虚拟仪器可利用计算机强大的软件功能实现信号数据的运算、分析和处理,所以采用虚拟仪器技术对磨削在线加工进行测试,以Labview为开发平台,建立磨削在线加工的振动信号测试系统,从而分析超声振动磨削特性。本文对纳米复相陶瓷材料振动特性进行实验研究,得出如下结论:超声振动频率始终保持在20.923kHz左右,超声振动的振幅随着所加功率的增大而增大;功率对超声振动的振幅影响较大,相同功率下系统实际振动振幅比理论值小。

The hypothesized instrument may realize the signal data operation, the analysis and processing using the computer formidable software function, therefore carrying on the test to the grinding online processing by the hypothesized instrument technology. As we can develop the platform on Labview to establish the grinding online processing the vibration signal testing system, the ultrasonic vibration grinding characteristic was analyzed. In the paper, exporimental investigation was carried out by ultrasonic vibration characteristic on nano-ceramics. The conclusions included： ultrasonic vibration frequency always kept 20. 923kHz, amplitude of nltrasonic vibration was increasing by increasing power; the power was big to ultrasonic vibration＇s amplitude influence, under the same power the system actual vibration amplitude was smaller than the theoretical value.