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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 8    No. 1    March 1998

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NUMERICAL PREDICTION OF PULSATING FLOW IN A LIQUID LINE WITH BRANCH OF HYDRAULIC SERVO SYSTEM
He Yongsen1 and Liu Shaoying1  Kobayashi Toshio2

1.Changsha Institute of Mining Research, Changsha 410012, P. R. China
2.Institute ofIndustrial Science, University of Tokyo, Japan

Abstract:Viscous flow equations for two-dimension were transformed into frequency characteristics formulae. Numerical prediction method, simulation model and application software have been used for calculating the dynamic characteristics (gain, phase, resonance angular frequency and maximal amplitude ratio, etc.) of pulsating flow in branch in the hydraulic servo systems, which can make the numerical prediction with digital computer highly effective and accurate. A new inspection method for hydraulic system was also provided.

 

Key words: viscous flow numerical prediction pulsating flow hydraulic servo system

ISSN 1672-7029
CN 43-1423/U

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