针对甘肃景泰电力提灌总干二泵站存在的压力管道振动问题,基于DASP振动测试系统获得振动信号,通过时域分析法和频谱分析法分析各工况下的振动信号,得到各工况下振源的主要频率;运用功率谱法,分析出压力管道振动存在的主要振源。分析结果表明,引起管道振动的主要原因是离心泵等设备引起的机械振动,水流激励次之,并针对此结论提出相应的减振措施。 Aiming at the vibration of pressure pipe in No.2 pumping station of Gansu Jingtai Power Irrigation Station, the vibration signal was obtained based on the DASP vibration test system. The vibration signal of each working condition was analyzed by time domain analysis and spectrum analysis. Source of the main frequency; the use of power spectrum method to analyze the existence of pressure pipe vibration of the main source of vibration. The analysis results show that the main reason of pipe vibration is the mechanical vibration caused by centrifugal pump and other equipment, followed by water flow excitation, and the corresponding vibration reduction measures are put forward according to the conclusion.