本文選題：液壓沖擊 + 壓力振蕩�。� 參考：《機(jī)床與液壓》2017年17期

【摘要】：針對(duì)液壓系統(tǒng)中液壓沖擊引起管道壓力振蕩的問題,以兩端分別連接容腔和換向閥的等直徑水平管道為研究對(duì)象,通過對(duì)管道物理模型的空間離散化,考慮頻率相關(guān)摩擦,建立管道有限分段集中參數(shù)模型,考慮復(fù)雜流體現(xiàn)象,合理選擇管道子模型,采用AMESim進(jìn)行了仿真分析,得到管道壓力振蕩特性。并通過仿真分析確定了管道參數(shù)對(duì)壓力振蕩的影響規(guī)律。結(jié)果表明:AMESim法計(jì)算所得峰值壓力與理論計(jì)算相比誤差為1.5%,與Simulink法相比誤差為6.8%,且在動(dòng)態(tài)過程中AMESim法和Simulink法壓力曲線吻合良好,證明了建模與仿真方法的正確性,為管道液壓沖擊壓力振蕩分析提供了一種新方法。
[Abstract]:In order to solve the problem of pressure oscillation caused by hydraulic shock in hydraulic system, the equal diameter horizontal pipe with two ends connecting the cavity and the directional valve is taken as the research object. By discretization of the space of the physical model of the pipeline, the frequency related friction is considered. The finite section lumped parameter model of pipeline is established, considering the complex fluid phenomenon, the pipe sub-model is reasonably selected, and the simulation analysis is carried out by using AMESim, and the pressure oscillation characteristics of pipeline are obtained. The influence of pipeline parameters on pressure oscillation is determined by simulation analysis. The results show that the error of the peak pressure calculated by the w AMESim method is 1.5 compared with the theoretical calculation, and the error is 6.8 by comparing with the Simulink method. The pressure curves of the AMESim method and the Simulink method are in good agreement with each other in the dynamic process, which proves the correctness of the modeling and simulation methods. A new method is provided for the analysis of hydraulic shock pressure oscillation in pipeline.
【作者單位】： 西南石油大學(xué)機(jī)電工程學(xué)院;中國(guó)石油長(zhǎng)慶油田公司第五采油廠;
【分類號(hào)】：TH137

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本文編號(hào)：1822151