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首页> 外文会议>International Conference on Fluid Power Transmission and Control(ICFP' 2005); 20050405-08; Hangzhou(CN) >Analytical Solution of Filling and Exhausting Process in a Pneumatic System
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Analytical Solution of Filling and Exhausting Process in a Pneumatic System

机译：气动系统充，排气过程的解析解

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摘要

The filling and exhausting processes in a pneumatic system are involved with many factors, and numerical solutions of many partial differential equations are always adapted in the study of those processes, which have been proved to be troublesome and less intuitive. Analytical solutions based on loss-less tube model and average friction model are found respectively by using fluid net theory, and they fit the experimental results well. The research work shows that: 1) Fluid net theory can be used to solve the analytical solution of filling and exhausting processes of pneumatic system, and 2) the result of loss-less tube model is close to that of average friction model, so loss-less tube model is recommended since it is simpler, and 3) the difference between filling time and exhausting time is determined by initial and final pressures, the volume of container and the section area of tube, and had nothing to do with the length of the tube.
机译：气动系统中的填充和排气过程涉及许多因素，在研究这些过程时总是采用许多偏微分方程的数值解，这被证明是麻烦且不那么直观的。利用流体网络理论分别找到了基于无损管模型和平均摩擦模型的解析解，并与实验结果吻合良好。研究工作表明：1）流网理论可用于解决气动系统充，排气过程的解析解； 2）无损管模型的结果接近于平均摩擦模型，因此损失建议使用较少的管子模型，因为它更简单，并且3）填充时间和排气时间之间的差值由初始和最终压力，容器的体积和管子的截面积决定，而与管子的长度无关管。

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