Displacement Reliability Analysis of Cone Valve Spools Based on Bidirectional Fluid-Solid Coupling

被引：0
|
作者：
Huang X.-Z. [1 ,2 ]
Luan X.-G. [1 ]
Zhu L.-S. [3 ]
Liu H.-Z. [1 ]
机构：
[1] School of Mechanical Engineering &Automation, Northeastern University, Shenyang
[2] Key Laboratory of Vibration and Control of Aero-Propulsion Systems, Ministry of Education, Northeastern University, Shenyang
[3] School of Mechanical & Automotive Engineering, Zhaoqing University, Zhaoqing
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2023年 / 44卷 / 05期
关键词：
cone valve; fluid-solid coupling; Kriging method; Monte-Carlo simulation; reliability;
D O I：
10.12068/j.issn.1005-3026.2023.05.008
中图分类号：
学科分类号：
摘要：
The traditional spool displacement stability is carried out on the premise that the system parameters are determined. However, in the process of actual production and use, various system parameters are uncertain. To solve this problem, a finite element analysis model of the cone valve’s dynamic process was established, and the dynamic response process of the cone valve under the pressure inlet was analyzed and solved by the bidirectional fluid-solid coupling and the overlapping grid method. Considering the influence of parameter randomness, the limit state equation of the spool displacement fluctuation was established based on whether the displacement after the spool stabilizes exceeds the allowable displacement. The reliability analysis of the displacement fluctuation after the stability of the spool was carried out by the Monte-Carlo method and Kriging method. It was shown that the stable displacement fluctuation range of the spool is 19% less than the theoretical value, and the reliability of the stable displacement of the spool decreases as the inlet pressure increases. © 2023 Northeastern University. All rights reserved.
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页码：667 / 673
页数：6
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