Method of predicting valve seal leakage considering deflection of the spool
参考中译:考虑阀芯偏移的气门密封泄漏预测方法


          

刊名：Proceedings of the Institution of Mechanical Engineers
作者：Fei Guo（State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University）
Chong Xiang（State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University）
Qiyao Chen（State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University）
Maoqi Zheng（Beijing Institute of Astronautical Systems Engineering）
Wujiang Yu（Beijing Institute of Astronautical Systems Engineering）
Yuming Wang（State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University）
刊号：780C0002-C
ISSN：0954-4062
出版年：2023
年卷期：2023, vol.237, no.24
页码：5911-5922
总页数：12
分类号：TH11
关键词：Spool deflection；Lattice leakage theory；Microscale leakage channel；Leakage rate；Contact；Rough surface
参考中译：线轴偏转；晶格泄漏理论；微尺度泄漏通道；泄漏率；接触；粗糙表面
语种：eng
文摘：The small angular deflection of the spool under the action of non-equilibrium force is a main reason for valve seal failure. In the present study, a prediction model of the valve seal leakage was established considering the sectional shape and channel height of the leakage channel. The effect of spool deflection on the leakage rate was analyzed quantitatively from the results of three-dimensional finite element mechanical analysis. The microscale leakage channel of a contact deformation surface was then generated through the reconstruction of the rough surface with nanoscale precision, deterministic rough-peak contact analysis, and lattice leakage theory. The results showed that the spool deflection was the key factor affecting the leakage rate. The leakage rate was measured on a self-built experimental platform, and the experimental results verified the accuracy of the theoretical calculations.
参考中译：阀芯在非平衡力作用下产生的小角偏移是导致气门密封失效的主要原因。本文建立了考虑泄漏通道截面形状和通道高度的气门密封泄漏预测模型。利用三维有限元力学分析结果定量分析了阀芯偏移对泄漏率的影响。通过对粗糙表面的纳米级精度重构、确定性粗糙峰接触分析和晶格泄漏理论，生成了接触变形表面的微尺度泄漏通道。结果表明，阀芯偏移是影响泄漏率的关键因素。在自行搭建的实验平台上测量了泄漏率，实验结果验证了理论计算的准确性。



国家科技图书文献中心  全球文献资源网  京ICP备05055788号-26  京公网安备11010202008970号  机械工业信息研究院 2018-2024