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伺服阀流量饱和设计理论修正 被引量:3

Revision of Servovalve Flow Saturation Design Theory
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摘要 伺服阀的设计通常从功率级滑阀部分开始,根据流量饱和设计理论确定滑阀结构参数,然后确定先导级结构参数。现有设计理论要求滑阀的流量饱和系数不小于4,而在实践中发现该系数偏大,并未达到最优化。通过分析、建模、计算和实际验证,确定了流量饱和系数的实用值,举一反三,对伺服阀流量饱和设计理论进行了修正,减少或避免了研发中的相关摸索过程,缩短了研发周期,降低了研发费用。 Design of the power stage spool is generally the beginning part of servovalves design. The structural parameters of the spool valve are determined on the basis of the flow saturation design theory, and then the structural parameters of the pilot stage are determined. The spool flow saturation coefficient regulated in the existing design theory should not be less than 4, but it' s found that the regulated coeffi- cient is high for practice and fails to be optimized. By means of analysis, modeling, calculation and verification in practice, the effective val- ue of flow saturation coefficient is confirmed, and accordingly the servovalve flow saturation design theory has been revised so as to provide theoretical basis for similar research activities, shorten the R & D cycle and reduce R & D expenses.
出处 《液压气动与密封》 2016年第9期35-38,共4页 Hydraulics Pneumatics & Seals
关键词 伺服阀 流量饱和设计理论 流量饱和系数 液阻 ervovalve flow saturation design theory flow saturation coefficient fluid resistance
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参考文献4

  • 1[美]H.E.梅里特.液压控制系统[M].北京:科学出版社,1976.
  • 2王春行.液压控制系统[M].北京:机械工业出版社,2000..
  • 3QJ504A-96,流量电液伺服阀通用规范[S].
  • 4ARP490F-2008,Electrohydraulic Servovalves[S].

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