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提出一种液压颤振器,该颤振器可用于振动切削的激振装置,它主要有高频激振阀和单作用颤振缸组成,该颤振器可输出500 Hz的受控振动。采用ANSYS Workbench对颤振器的关键部件弹性端盖进行静态和模态仿真。实验测量了钻孔和不钻孔情况下该颤振器的压力特性、加速度特性和位移特性,并对数据对比分析,结果表明,工件的振动频率能跟随激振阀的激振频率,能量集中在激振频率;该液压颤振器与不钻孔时的振动特性均未发生太大变化,说明该液压颤振器的稳定性是极好的;谐振频率300 Hz,谐振时振幅明显增加。
A hydraulic flutter is proposed for vibrating cutting vibration devices. It mainly consists of a high-frequency excitation valve and a single-acting chatter cylinder, which outputs a controlled vibration of 500 Hz. The ANSYS Workbench is used to simulate the static and modal elastic end caps of the key components of the flutter. The pressure characteristics, acceleration characteristics and displacement characteristics of the flutter were measured experimentally with and without drilling, and the data were compared and analyzed. The results show that the vibration frequency of the workpiece can follow the excitation frequency of the excitation valve and the energy concentration In the excitation frequency; the vibration characteristics of the hydraulic flutter and no borehole did not change much, indicating that the stability of the hydraulic flutter is excellent; resonant frequency of 300 Hz, the amplitude was significantly increased resonance.