A new dynamic vibration absorber composed of mass and spring-leaf is designed to mitigate the hydraulic pipeline vibration. The vibration reduction experiment on a real hydraulic pipeline is carried out. Through adjusting the location of the mass on the spring-leaf, the forced vibration due to the pressure fluctuation and the resonance due to the similarity of the frequency-multiplier excitation to the natural frequency of the pipeline can be effectively suppressed. Aiming at the severe vibration of a suspended pipeline of the hydraulic power source, two dynamic vibration absorbers are designed. The vibration reduction experiments of the two absorbers are carried out in a real hydraulic pipeline system under different fluctuation frequencies and pressures. The results show that the pressure fluctuation frequency components are reduced successfully in all the X、Y and Z directions. The vibration reduction experiments indicate that the new dynamic vibration absorber with adjustable frequency is valuable for engineering applications.%针对文献[7]设计的一种新型的管道动力吸振器,进行真实液压管道的减振实验.该减振器能够针对难于施加卡箍的管道系统实施有效减振,主要由质量块、弹簧片组成,通过移动弹簧片上的质量块位置,可以有效抑制管道强迫振动及多个倍频激励下与管道固有频率发生的共振.针对某真实液压动力源一段悬空管道振动剧烈的问题,设计加工两个新型管道动力吸振器,利用其对不同压力下的真实液压管道进行减振试验,对于由于压力脉动所导致的脉动频率分量振动,在X、Y和Z方向均实现了有效地减振.液压试验台的管道减振试验充分表明所设计的管道动力吸振器具有很强的工程应用价值.
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