对测定气动元件的流量特性参数的主要方法的评述  

Review on the Major Methods for Measuring the Flowrate Characteristic Parameters of Pneumatic Components

作　　者：徐文灿[1] 

机构地区：[1]北方工业大学,北京100084

出　　处：《液压气动与密封》2011年第11期4-6,共3页Hydraulics Pneumatics & Seals

摘　　要：对国际标准草案ISO/FDIS6358-1、ISO/FDIS6358-2及国家标准GB/T14513进行了评述。结论是ISO/FDIS6358-1不适合作为国际标准,ISO/FDIS6358-2作为国际标准的条件尚不明朗。GB/T14513可以实施,其缺陷是不能测无出口连接口的气动元件。并提出一种新方法,即测定壅塞流态下的有效截面积S值及不可压缩流态下的有效截面积A值,再计算临界压力比b值,供研讨。On the determination of pneumatic components of the flow characteristic parameters of the main method of draft international standards are reviewed in this paper,the ISO/FDIS6358-1,ISO/FDIS6358-2 and national standard GB/T14513 are reviewed.The conclusion is ISO/FDIS6358-1 doesn＇t fit as an international standard,ISO/FDIS6358-2 as an international standard conditions are tantalizing.GB/T14513 can implement,its defects is not measured with A mouth no exports of pneumatic components.And puts forward A new method,namely the determination of congestion flow patterns effective cross-sectional area S value and incompressible flow patterns effective cross-sectional area,A value to calculate the critical pressure ratio value for discussion,b.

关 键 词：气动元件的流量特性 有效截面积 临界压力比 声速流导 国际标准 国家标准 

分 类 号：TH138.5[机械工程—机械制造及自动化]