Results 21 to 30 of about 1,028 (195)
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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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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MachinesWith the rapid progress of industrial technology in recent years, servo controllers have the characteristics of precise control and short response time and are widely used in different industrial fields.
Tao Wang +3 more
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Applied Sciences, 2023 Direct-drive electro-hydraulic servo valves are widely used in the aerospace industry, in the military, and in remote sensing control, but there is little research and discussion on their performance degradation and service life prediction.
Juncheng Mi, Guoqin Huang
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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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ActuatorsThe electro-hydraulic servo valve is a critical component that transforms electrical signals into hydraulic signals, thereby controlling the hydraulic system. It finds extensive application in precision control systems.
Tong Li +4 more
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Simulation of an electro-hydraulic servo valve driven by an ultrasonic motor [PDF]
Mechanical SciencesThe conventional electro-hydraulic servo valve is driven by an electromagnet, which is easily disturbed and has poor dynamic performance, seriously restricting the flow control accuracy.
R. Niu, B. Zhou, Z. Pan
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Applied Sciences, 2020 The traditional valve-controlled hydraulic servo system has large throttling losses and undergoes serious heat problems when used in electro-hydraulic servo systems (EHSSs) for a rolling shear.
Suhong Lin +4 more
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Investigation of temperature rise characteristics in the pre-stage of a deflector jet servo valve [PDF]
Scientific ReportsIn aerospace equipment, the deflector jet servo valve is a high-end core control component of electro-hydraulic servo systems. The pre-stage is crucial because of the compact structure and complex jet morphology.
Li Ma +4 more
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IEEE Access, 2020 Each joint of hydraulic drive legged robot adopts highly integrated electro-hydraulic servo system, and the system has two common forms, namely, valve-controlled cylinder system and pump-controlled cylinder system.
Bin Yu +6 more
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