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离心泵密封口环动力学特性系数计算 被引量:2

Calculation on Dynamic Coefficients of Annular Seals in Centrifugal Pumps
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摘要 本文根据Hirs的紊流整体流动理论,研究了离心泵间隙密封的动量方程式,在此基础上,推导了计算动力学系数的微分方程组。 The momental equations of annular seals employed in a centrifugal pump are analyzed based on Hirs'bulk-flow theory for turbulence in this paper. Expressions which define dynamic coefficients for annular seals are also derived. Calculations in numerical method and comparisons are carried out too by the authors.
出处 《润滑与密封》 CAS CSCD 北大核心 1998年第6期44-46,共3页 Lubrication Engineering
关键词 离心泵 动力学系数 密封 密封口环 Centrifugal Pump, Dynamic Coefficient, Seal, Calculation.
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  • 1张新敏,夏延秋,赵清,周晓晔.离心泵稳态密封间隙力的计算分析[J].润滑与密封,2004,29(4):63-65. 被引量:8
  • 2DIEWALD W, NORDMANN R. Dynamic analysis of centrifugal pump rotors with fluid mechanical interaction[J]. Journal of Vibration and Acoustics, 1998, 111 (6) .. 269 -267.
  • 3LOMAKIN A A. Calculation of critical speed and secu- ring of dynamic stability of hydraulic high-pressure pumps with reference to the forces arising in the gap seals [J] 1162. e, 1958, 4(1): 1158-.
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  • 7CHILDS D W , CHANG H K. Analysis and testing for rotordynamic coefficients of turbulent annular seals with different, directionally-homogeneous surface-roughness treatment for rotor and stator elements [J]. ASME Jour- nal of Tribology, 1985, 107(3) : 296 - 306.
  • 8BASKHARONE E A. Rotordynamic effects of the shroud-to-housing leakage flow in centrifugal pumps [J] ASME journal of fluids engineering, 1994, 116 (7) : 558 - 563.
  • 9AKIRA H, YOSHINOBU T. Theoretical analysis of fluid forces on an open-type centrifugal impeller in whir- ling motion[J]. ASME journal of fluids engineering, 2002, 124(2).. 242-247.
  • 10张直明.论紊流润滑理论中的Hirs法的理论基础[J].西安交通大学学报,1978,53(4):25-28.

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