Numerical Investigation of Flow Force and Cavitation Phenomenon in the Pilot Stage of Electrical-Hydraulic Servo Valve under Temperature Shock

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成果类型：

期刊论文

作者：

Ma, Li;Yan, Hao;Ren, Yukai;Li, Lei;Cai, Cunkun

通讯作者：

Hao Yan

作者机构：

[Ma, Li; Ren, Yukai] School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China

[Cai, Cunkun] Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China

[Li, Lei] School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430048, China

Key Laboratory of Vehicle Advanced Manufacturing, Measuring and Control Technology, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China

Author to whom correspondence should be addressed.

通讯机构：

[Hao Yan] S

School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China<&wdkj&>Key Laboratory of Vehicle Advanced Manufacturing, Measuring and Control Technology, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China<&wdkj&>Author to whom correspondence should be addressed.

语种：

英文

关键词：

electro-hydraulic servo valve;flow force;temperature shock;cavitation phenomenon

期刊：

Machines

ISSN：

2075-1702

年：

2022

卷：

期：

页码：

423-

DOI：

10.3390/machines10060423

基金类别：

This research was funded by ”the National Natural Science Foundation of China, grant No. 51775032” and “the Foundation of Key Laboratory of Vehicle Advanced Manufacturing, Measuring and Control Technology, Beijing Jiaotong University, Ministry of Education, China”.

机构署名：

本校为其他机构

院系归属：

机械工程学院

摘要：

The flow field structure in the pilot stage of the electro-hydraulic servo valve is small and complex, and the extreme temperature environment will aggravate the self-excited oscillation, resulting in a decrease in the control accuracy of the servo valve. With the increase in temperature, the size of the orifice, the temperature characteristics of the fluid and the pressure loss in the flow pipe will influence the characteristics of the pilot stage. Considering the influence of temperature and pressure loss, a theoretical mathematical model is ...

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Numerical Investigation of Flow Force and Cavitation Phenomenon in the Pilot Stage of Electrical-Hydraulic Servo Valve under Temperature Shock

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