Results 41 to 50 of about 5,164 (216)
Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism [PDF]
Engineering and Technology Journal, 2020 An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic servo system for controlling the speed of a hydraulic elevator prototype ...
Jamal Mohammed +2 more
doaj +1 more source
Modelling, transient response and hydraulic behaviour of 2DOF stabilization platform [PDF]
FME Transactions, 2020 The main part of the hydraulic circuit of the hydraulic stabilization platform (HSP) is the electro-hydraulic servo valve (EHSV), which is very expensive due to its manufacturing requirements, so the proper selection for the geometrical configuration of ...
Ibrahim Ezz Eldin +3 more
doaj
Model based control strategies for a class of nonlinear mechanical sub-systems [PDF]
, 2016 This paper presents a comparison between various control strategies for a class of mechanical actuators common in heavy-duty industry. Typical actuator components are hydraulic or pneumatic elements with static non-linearities, which are commonly ...
De Keyser, Robain +1 more
core +2 more sources
Development of Hydraulically Driven Fatigue Testing Machine for Insulators
IEEE Access, 2018 The hydraulically driven fatigue testing machine is studied to simulate the vibration in the fatigue experiments for the insulators. First, hydraulic scheme and control principle are introduced.
Jianlin Xuan, Shoukun Wang
doaj +1 more source
Design and Analysis of Combined Valve Spool with Linear Flow Coefficient
Journal of Engineering, 2022 The orifice flow model is generally established based on the turbulent state, and the flow discharge is considered to be a constant value. In fact, the flow discharge has obvious nonlinearity under the condition of small opening and small pressure ...
Changxiong Xie +3 more
doaj +1 more source
Analysis of the jet pipe electro-hydraulic servo valve with finite element methods
MATEC Web of Conferences, 2018 The dynamic characteristics analysis about the jet pipe electro-hydraulic servo valve based on experience and mathematical derivation was difficult and not so precise.
Kaiyu Zhao +4 more
doaj +1 more source
Present Status and Prospect of High-Frequency Electro-hydraulic Vibration Control Technology
Chinese Journal of Mechanical Engineering, 2019 Electro-hydraulic vibration equipment (EHVE) is widely used in vibration environment simulation tests, such as vehicles, weapons, ships, aerospace, nuclear industries and seismic waves replication, etc., due to its large output power, displacement and ...
Yi Liu +3 more
doaj +1 more source
Heliyon, 2023 An electro-hydraulic servo pump control system (hereinafter referred to as EHSPCS) is a volume servo control unit that is highly integrated with servo motors, fixed-displacement pumps, hydraulic cylinders and functional valve groups.
Mingkun Yang +4 more
doaj +1 more source
Modeling and fault tolerant control of an electro-hydraulic actuator [PDF]
, 2016 In the modern industry, electro-hydraulic actuators (EHAs) have been applied to various applications for precise position pressure/ force control tasks.
Ahn, Kyoung Kwan +4 more
core +1 more source
Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation
Energy Science &Engineering, Volume 14, Issue 2, Page 831-842, February 2026.A novel output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro‐hydraulic cylinder system, which shows the great control potential of the designed output feedback controller during the start‐up and operation of the electro‐hydraulic actuator system ...
Yunfei Wang, Haigang Ding, Jiaxiang Man
wiley +1 more source