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首页> 外文会议>International Conference on Fluid Power Transmission and Control(ICFP' 2005); 20050405-08; Hangzhou(CN) >Experimental Investigation on Flow Characteristics of Annular Gap Damper in Water Hydraulics
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Experimental Investigation on Flow Characteristics of Annular Gap Damper in Water Hydraulics

机译：液压系统中环形间隙阻尼器流动特性的实验研究

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摘要

Owing to large cross-sectional area the annular gap damper can easily ensure its flow rate to be laminar, which is widely used in hydraulic components, especially in water hydraulic control components. The flow-pressure characteristics of the annular gap damper and relationship between the flow-correction coefficient and overlap length are investigated experimentally. For annular gap damper, the water flow is much less than that of oil as working medium under the same pressure difference and overlap length. The flow-correction coefficients for the laminar inceptive phase are approximately constant for different overlap lengths, ranging from about 1.3 to 5 when 1 = 5 ～ 25 mm. The experimental results indicate that, cavitation in the annular gap damper cause vapor bubbles to collapse and choke, and produce decreased flow. The relevant research on the annular gap damper will be useful to the designs of water servo valve and other water hydraulic control components.
机译：由于大的截面积，环形间隙阻尼器可以很容易地确保其流率是层流的，其广泛用于液压部件，特别是在水力液压控制部件中。实验研究了环形间隙阻尼器的流量压力特性以及流量校正系数与搭接长度之间的关系。对于环形间隙阻尼器，在相同的压差和重叠长度下，水流量远小于作为工作介质的油流量。对于不同的重叠长度，层流感受相的流量校正系数近似恒定，当1 = 5〜25 mm时，约为1.3至5。实验结果表明，环形间隙阻尼器中的气穴现象会导致气泡破裂和窒息，并减少流量。环形间隙阻尼器的相关研究将对水伺服阀和其他水力控制组件的设计很有帮助。

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