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Design and operating mode analysis of hybrid actuation system based on EHA/SHA
The Journal of Engineering, Volume 2018, Issue 13, Page 385-391, 2018., 2018 By analysing the structure and working principle of hybrid actuation system (HAS) which consists of a servo‐hydraulic actuator (SHA) and an electro‐hydrostatic actuator (EHA), the overall mathematical model with dissimilar redundancy conforms is established, which considers various influencing factors, such as air load and attachment stiffness ...
Liu Zidong, Bai Zhiqiang, Xu Shuhan
wiley +1 more source
Iterative Smooth Variable Structure Filter for Parameter Estimation
International Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011 The smooth variable structure filter (SVSF) is a recently proposed predictor‐corrector filter for state and parameter estimation. The SVSF is based on the sliding mode control concept. It defines a hyperplane in terms of the state trajectory and then applies a discontinuous corrective action that forces the estimate to go back and forth across that ...
Mohammad Al-Shabi +3 more
wiley +1 more source
Harmonic Control for Variable-Frequency Aviation Power System Based on Three-Level NPC Converter
IEEE Access, 2020 At present, three-phase 115V/360-800Hz variable frequency AC power system is mostly used in the main power system of More-Electric Aircraft. With the increase of EMA (Electro-Mechanical Actuator), EHA (Electro-Hydrostatic Actuator), DC/DC power supply ...
Zhenyang Hao, Xinying Wang, Xin Cao
doaj +1 more source
Research on Dual-Variable Integrated Electro-Hydrostatic Actuator [PDF]
, 2006 The integrated electro-hydrostatic actuator (EHA) with variable displacement and variable rotation speed is researched. In the system, the output of the actuator is changed by controlling the rotation speed of the brushless DC servomotor and the ...
Ji-ming MA +7 more
core +1 more source
Synthesis of an electro hydrostatic actuator from bicausal bond graphs [PDF]
, 2007 International audienceIn this paper, the structure of an Electro Hydrostatic Actuator (EHA) devoted to flight control surfaces is firstly described by its Causal Bond Graph (CBG).
Sareni, Bruno +3 more
core +2 more sources
Actuators, 2022 For an electro-hydrostatic actuator (EHA), the position, speed, and current cascade three-loop control architecture are dominant in existing active disturbance rejection control (ADRC).
Rongrong Yang +4 more
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2019 Raising the rotational speed of electro-hydrostatic actuator (EHA) pumps is a useful way to improve their power density. However, gaseous cavitation tends to occur in the displacement chambers at high speed, reducing the effective delivery flow rate of ...
Qun Chao +4 more
doaj +1 more source
Optimization of EHA sliding mode controller based on spider wasp algorithm
Zhongguo Jianchuan YanjiuObjectiveThis paper proposes using the Spider Wasp Optimization (SWO) algorithm to achieve precise position control of an electro-hydrostatic actuator (EHA) while reducing the parameter tuning difficulty of the EHA sliding mode controller and improving ...
Weibo LI +4 more
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Jixie chuandong, 2009 A active suspension system with EHA（Electro-Hydrostatic Actuator） is developed to improve the ride comfort performance using a fuzzy PID control scheme,which makes the control system more intelligent.The performance of the controller can be improved by ...
寇发荣
doaj
World Electric Vehicle JournalThis study investigates the dynamic characteristics of electro-hydrostatic actuators (EHA), which serve as the core actuating element in vehicle active suspension systems, with the aim of enhancing overall system performance. The purpose of this research
Peng Chen, Xing Chen
doaj +1 more source