Results 31 to 40 of about 638,968 (154)
Machines, 2022 A valve-controlled hydraulic cylinder system has the characteristics of uncertainty and time-variance, and the electro-hydraulic servo unit encounters shock, vibration, and other external interference when working, which seriously affect the stability of
Bingwei Gao +3 more
doaj +1 more source
IET Intelligent Transport Systems, Volume 17, Issue 11, Page 2268-2284, November 2023., 2023 Accurate control of front wheel angle is essential in intelligent vehicle electric‐hydraulic power steering (EHPS) system, because it has a significant impact on the safety, comfort, and reliability of vehicle steering. However, the accurate control of front wheel angle is a challenging problem due to the non‐linearity of hydraulic power in the ...
Yafei Li, Yiyong Yang
wiley +1 more source
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
doaj +1 more source
Claw‐pole magnetic levitation torque motor for 2D valve with automatic neutral adjustment
IET Electric Power Applications, Volume 17, Issue 10, Page 1285-1303, October 2023., 2023 A claw‐pole magnetic levitation torque motor with neutral regulation by means of cogging torque is proposed. A qualitative formula for the output torque is derived based on equivalent magnetic circuit, and the structural parameters of this torque motor are optimised by response surface method and NSGA‐2.
Jiahui Huang +3 more
wiley +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
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
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
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
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
doaj +1 more source
Application of Modelica/MWorks on modeling, simulation and optimization for electro-hydraulic servo valve system [PDF]
, 2012 Electro-hydraulic servo valve is a typical complicated multi-domain system constituted by mechanical, electric, hydraulic and magnetic components, which is widely used in electro-hydraulic servo systems such as construction machinery, heavy equipment ...
Liu, Jinyang +4 more
core +1 more source