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首页> 外文会议>FPST-vol.11; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20041113-19; Anaheim,CA(US) >MODELING SPOOL-VALVE FLOW FORCES
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MODELING SPOOL-VALVE FLOW FORCES

机译：建模阀流量力

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摘要

This paper has been written to reconsider the important topic of transient flow forces that act on spool-type hydraulic control valves. Though this subject has been addressed and somewhat laid to rest many years ago, the high-speed applications of our present day require a fresh look at this topic for gaining deeper insight into the significant contributions that determine the stability and frequency response of the hydraulic control valve. Over thirty years ago, it became an accepted practice to neglect the pressure transient flow-forces acting on the spool valve as they were deemed to be minor compared to the velocity effects of the spool itself. In this paper, flow force models with and without the pressure transient term are compared and it is shown that the historic practice of neglecting pressure transients may no longer be valid. As a result, this paper provides justification for considering the pressure transients in the analysis and may provide an explanation for some of the discrepancies that have existed between theoretical expectations and laboratory results.
机译：撰写本文是为了重新考虑作用在滑阀式液压控制阀上的瞬变流力的重要主题。尽管这个问题已经在很多年前得到解决并且有些搁置，但当今的高速应用需要重新审视此主题，以便更深入地了解确定液压控制的稳定性和频率响应的重要贡献。阀。三十多年前，忽略作用在滑阀上的压力瞬变流力已成为一种公认的做法，因为与滑阀本身的速度影响相比，它们被认为是次要的。本文比较了带有和不带有压力瞬变项的流体力模型，结果表明，忽略压力瞬变的历史做法可能不再有效。结果，本文为在分析中考虑压力瞬变提供了依据，并可以为理论期望值和实验室结果之间存在的某些差异提供解释。

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