Advances in Mechanical Engineering, 2019 Electro-hydraulic servo-valves play key roles in modern electro-hydraulic power systems in many industrial applications. As one of the widely used hydraulic servo-valves, cavitation in the flapper-nozzle servo-valve could produce deleterious effects of ...
He Yang, Wen Wang, Keqing Lu
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The technical roadmap of the development of variable pitch propeller governors for turboprop
Hangkong gongcheng jinzhanThe variable pitch governor controls the propeller to maintain a constant speed，so that the propeller can be energy-saving and efficient in a wider range of flight envelope.
CHEN Tingting, GUO Yong, PAN Zhongjian
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THE VELOCITY CONTROL OF THE ELECTRO-HYDRAULIC SERVO SYSTEM
International Journal of Research in Engineering and Technology, 2014 In general two basic methods are used for controlling the velocity of a hydraulic cylinder. First by an axial variable-displacement pump for controls flow to the cylinder. This configuration is commonly known as a hydrostatic transmission. Second by proportional valve powered by a constant-pressure source, such as a pressure compensated pump, drives ...
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High-performance control of dual-inertia servo-drive systems using low-cost integrated SAW torque transducers [PDF]
, 2006 —This paper provides a systematic comparative study of compensation schemes for the coordinated motion control of two-inertia mechanical systems. Specifically, classical proportional–integral (PI), proportional–integral–derivative (PID), and resonance ...
Bingham, Chris +2 more
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Research on Multi-Mode Control of Electro-Hydraulic Variable Displacement Pump Driven by Servo Motor
ActuatorsThe electro-hydraulic power source with an electro-hydraulic variable pump driven by a servo motor is suitable for electrified construction machinery. To achieve better energy efficiency in different working conditions, the multi-mode control scheme was ...
Zhiqiang Zhang +5 more
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Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II. [PDF]
Heliyon, 2023 Yang M, Yan G, Zhang Y, Zhang T, Ai C.
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Multi-axis transient vibration testing of space objects: Test philosophy, test facility, and control strategy [PDF]
IABG has been using various servohydraulic test facilities for many years for the reproduction of service loads and environmental loads on all kinds of test objects.
Lachenmayr, Georg
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Adaptive Output Feedback Pressure Control for Electro-Hydraulic Servo Systems
ActuatorsHigh-precision position control and pressure control are core performance requirements for modern electro-hydraulic actuators. While the design of controllers for high-performance position servo systems is relatively straightforward, the development of ...
Tao Han +5 more
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Crawler Transporter Steering and Jel Systems [PDF]
The transporter weighing 2.8 million kilograms (6.3 million pounds) was used to lift a 5.7-million-kilogram (12.6-million-pound) combination of mobile launcher and space vehicle, transfer this load approximately 5.6 kilometers (3.5 miles) from its point ...
Davis, V. L.
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Research on the position–pressure cooperative control strategy for full-hydraulic leveler
Advances in Mechanical Engineering, 2018 The characteristics of electro-hydraulic servo system of full-hydraulic leveler are high speed, large inertia, high frequency response, and multi-degree of freedom.
Dongping He +4 more
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