Flow vibration in turbine control valve is the major consequences of valve stem rupture, valve disc damage as well as the resonance of valve and its pipings.
调节阀的流体振动会造成阀杆疲劳断裂与阀碟的损坏，以及整个阀门及管道系统的共振。
2
By observation and analysis of the test data, changing the plate steel endshield of motor into the disc iron one can improve the rigidness of endshield, and reduce the axial vibration of motor.
通过观察和检测数据分析，电动机的平板式钢板端盖改为盘式铸铁端盖，可提高端盖刚度，降低电机轴向振动。
3
The principle of vibration systems of ultrasonic vibration honing are discussed. The vibration effect of horn, curved vibrating disc and child system are analyzed by experiments.