• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2022, Vol. 58 ›› Issue (16): 344-359.doi: 10.3901/JME.2022.16.344

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Summary of Methods to Suppress Fluid Pulsation in Hydraulic System

LI Yongtao, YANG Bo, MUHETAER Kelimu   

  1. School of Mechanical Engineering, Xinjiang University, Urumqi 830047
  • Received:2021-06-25 Revised:2022-04-20 Online:2022-08-20 Published:2022-11-03

Abstract: The fluid pulsation is an important factor affecting the performance and reliability of hydraulic system. According to the different mechanism and suppression methods of fluid pulsation, the suppression methods of fluid pulsation in hydraulic system can be divided into passive suppression method, active suppression method and active passive combined suppression methods. Firstly, the passive suppression methods are classified based on the improvement of pulsation attenuator, hydraulic pipeline and optimal design of pump, and the research results of passive suppression methods of fluid pulsation at home and abroad are analyzed and summarized, and the following conclusions are drawn: Compared with other passive suppression methods, pulsation attenuator suppression method is widely used at present due to its low cost and significant effect, among which resonant pulsation attenuator is mainly used. Secondly, the domestic and foreign research results of fluid pulsation active suppression methods are analyzed from the three aspects of servo actuator, hydraulic valve and non-immersion structure, and it is concluded that: Compared with servo actuator and non-immersion structure, the active suppression method based on hydraulic valve is relatively simple and mature in operation and design, and the control accuracy and difficulty are lower. Therefore, the research and application of the active suppression method based on hydraulic valve are the most popular. Then, by summarizing and analyzing the research results of active and passive combined pulse suppression methods, it is concluded that this method has the characteristics of both active and passive suppression, and can suppress or even eliminate pulsation to a large extent, but there are few relevant researches at home and abroad. Finally, the research status and development direction of passive, active and combined active and passive suppression methods are summarized.

Key words: fluid pulsation, pulsation suppression, active suppression method, passive suppression method, active and passive combined suppression methods

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