CFD-Based Physical Failure Modeling of Direct-Drive Electro-Hydraulic Servo Valve Spool and Sleeve [PDF]
Sensors, 2022 Direct-drive electro-hydraulic servo valves are used extensively in aerospace, military and control applications, but little research has been conducted on their service life and physical failure wear.
Guoqin Huang +3 more
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Direct-Drive Electro-Hydraulic Servo Valve Performance Characteristics Prediction Based on Big Data and Neural Networks [PDF]
Sensors, 2023 Direct-drive electro-hydraulic servo valves play a key role in aerospace control systems, and their operational stability and safety reliability are crucial to the safety, stability, and efficiency of the entire control system. Based on the prediction of
Juncheng Mi, Jin Yu, Guoqin Huang
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Mechanism of temperature-induced zero drift on electro-hydraulic servo valve [PDF]
AIP Advances, 2021 An electro-hydraulic servo valve is objectively asymmetrical in the process of fabrication and assembly, and the zero position is the result of comprehensive adjustment.
Li Ma, Hao Yan, Cunkun Cai, Yukai Ren
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Built-in test technology for electro-hydraulic servo-valve amplifier
Zhongguo Jianchuan Yanjiu, 2021 Objectives The electro-hydraulic servo valve operates in a harsh working environment but lacks integrated testability. In order to improve the usability and maintainability of electro-hydraulic servo valves, it is necessary to design a built-in test (BIT)
Jianping YUAN, Hanbing SUN
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Early Fault Symptom Diagnosis of Aircraft Electro-hydraulic Servo Valve
Hangkong gongcheng jinzhan, 2020 Electro-hydraulic servo valve is an important part of aircraft brake system, which affects the safety of aircraft landing. In order to solve the problem of frequent failure of a certain type of electro-hydraulic servo valve, a model of electro-hydraulic ...
JIN Guotao
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Mechanism of Temperature’s Acting on Electro-Hydraulic Servo Valve [PDF]
IEEE Access, 2019 To understand temperature's influence on the electro hydraulic servo valve, a theoretical model of describing the detailed mechanism is necessary. For a servo valve experiencing actual working conditions, the temperature variation acts on the performance
Hao Yan, Yang Liu, Li Ma
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Multi-State Recognition of Electro-Hydraulic Servo Fatigue Testers via Spatiotemporal Fusion and Bidirectional Cross-Attention [PDF]
SensorsElectro-hydraulic servo fatigue testing machines are susceptible to concurrent degradation and failure of multiple components during high-frequency, high-load, and long-duration cyclic operations, posing significant challenges for online health ...
Guotai Huang +4 more
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Durability analysis of rotary direct drive electro-hydraulic pressure servo valve based on failure physics principle. [PDF]
PLoS ONEThe rotary direct drive electro-hydraulic servo valve (RDDPV) is extensively employed in hydraulic systems across aerospace, automotive, and various industrial sectors owing to its remarkable precision and rapid response characteristics.
Jianrui Zhang +4 more
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High Precise Fuzzy Control for Piezoelectric Direct Drive Electro-Hydraulic Servo Valve
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012 As the core part of the electro-hydraulic servo system, the electro-hydraulic servo valve plays an important role in the system. Due to the piezoelectric actuator has characteristics of fast response, easy control and high control accuracy, it can be ...
Miaolei ZHOU +3 more
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Analysis of the static and dynamic characteristics of the electro-hydraulic pressure servo valve of robot [PDF]
Scientific Reports, 2023 In this study, we comprehensively investigate the structure and operational principles of the Rotary Direct Drive Electro-Hydraulic Pressure Servo Valve (RDDPV).
Jianrui Zhang +4 more
doaj +2 more sources