液压管路的谐振问题研究

Study on the Resonance Oscillation of Hydraulic Pipeline

液压系统中阀门(换向阀等)突然关闭时,液压泵的流量脉动频率和管道的基本频率相互作用,可能发生谐振。本文从理论上分析闭端管路系统发生谐振的条件,并给出了实例分析。结果表明,在安装液压元件时,换向阀至液压泵的管路应避开发生谐振的长度,以防止管路发生谐振。

In hydraulic transmission system, the pump＇ s flow pulse frequency and the pipes base frequency affects each other, if the valves shut suddenly, resonance oscillation may take place. The condition of resonance oscillation for pipe-oneend-closed system was analyzed on theory, and an example was gived to analyze it. The result shows that in order to prevent the pipe from resonance oscillation, the pipe length of pump to direction valve and the length of resonance oscillation should be avoided equal.