吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (4): 1085-1091.doi: 10.13229/j.cnki.jdxbgxb20171136

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Characteristics and mechanism reducing pressure ripple of hydraulic system with novel hydraulic muffler

QIU Yan-kai, LI Bao-ren, YANG Gang, CAO Bo, LIU Zhen   

  1. FESTO Pneumatic Center, Huazhong University of Science and Technology, Wuhan 430074,China
  • Received:2017-11-20 Online:2018-07-01 Published:2018-07-01
  • Supported by:
     

Abstract: A new hydraulic muffler is designed based on the mechanism of pressure ripple reduction by accumulator group with several accumulators installed in series. This design takes advantages of the characteristics of noise elimination and structure of Helmholtz muffler. The mathematical models of the accumulator group and the new hydraulic muffler are developed. The effects of a single accumulator, an accumulator group and the new hydraulic muffler on the pressure ripple reduction are investigated by numerical simulation using the Method of Characteristics (MOC) and FORTRAN language. The simulation results are compared with experimental data, which verifies the simulation model and calculation method. It is shown that the new hydraulic muffler can more effectively reduce the pressure ripple than the traditional accumulator, meanwhile its structure is smaller than the accumulator group, which is important in engineering application.

Key words: technology of instrument and meter, new hydraulic muffler, accumulator group, pressure ripple, numerical simulation

CLC Number: 

  • TH137
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