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为了深入研究气动系统的运动状态和各项参数的分布规律 ,根据气动系统运动的实际情况和运动过程 ,利用特征线法对气动系统的管路进行一维非定常流场计算 ,对管路进、出口处的节流口的流动状态进行合理简化 ,在边界条件的处理上引入压力回复模型和等压模型对节流口处的流动进行处理 ,并给出了两种模型的适用条件和范围 .通过计算结果和实验结果的对比 ,验证了该方法的的正确性 ,从而为处理气动系统的管路的进、出口边界条件问题提供了一种新的方法 .
In order to further study the movement of pneumatic system and the distribution of various parameters, according to the actual situation of pneumatic system movement and movement process, the characteristic line method is used to calculate the one-dimensional unsteady flow field of pneumatic system. , The flow of the throttle at the outlet is reasonably simplified. The pressure recovery model and the isobaric model are introduced to deal with the flow at the throttle at the boundary conditions, and the applicable conditions and scope of the two models are given The correctness of this method is verified by comparing the calculated results with the experimental results, which provides a new method for dealing with the inlet and outlet boundary conditions of the pneumatic system piping.