Results 71 to 80 of about 290 (181)

A Qualitative and Quantitative Functional Modelling Method for PHM System Design

Chemical Engineering Transactions, 2013
In the early stage of PHM system design, it is very important to analyse the failure modes and their effects,i.e. FMEA. A great number of model-based methods have been proposed recently; however, the analysis process might concern only qualitative or ...
L. Song, Y. Liu, Z. Hu, D. Yang, S. Zhang   +4 more
doaj   +1 more source

Fault Detection in an Electro-Hydrostatic Actuator Using Polyscale Complexity Measures and Bayesian Classification

IEEE Open Journal of Instrumentation and Measurement
This article presents a novel approach for fault detection in a hydraulic actuation system. The fault of interest is the internal leakage of the actuator, which may often be caused by the wearing down of the piston seal.
Soleiman Hosseinpour, Witold Kinsner, Saman Muthukumarana, Nariman Sepehri   +3 more
doaj   +1 more source

车辆电动静液压主动悬架系统的设计与试验研究

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  

Adaptive Dead Zone Compensation Control Method for Electro-Hydrostatic Actuators Under Low-Speed Conditions

Chinese Journal of Mechanical Engineering
This study proposes an accurate dead zone compensation control method for electro-hydrostatic actuators (EHAs) under low-speed conditions. Specifically, the nonlinear dead zone characteristics under low-speed conditions are summarized based on numerous ...
Haoyi Jiang, Zhenfei Ling, Fengqi Zhou, Maowen Sun, Hao Liu, Lilin Xu, Yeming Yao, Xiaoping Ouyang, Huayong Yang   +8 more
doaj   +1 more source

Optimal energy-saving controller design for an electro-hydrostatic actuator integrated into a wheel loader

Advances in Mechanical Engineering
Electrifying non-road mobile machinery is vital for reducing emissions and improving energy efficiency. Replacing conventional hydraulic systems with electro-hydrostatic actuators is a key step in this transition.
Baoyan Hu, Jian Fu, Yandu Fan, Zheng Fu
doaj   +1 more source

Analysis and Improvement of the Dynamic Characteristics of an Electro-Hydrostatic Actuator Based on a Vehicle’s Active Suspension

World Electric Vehicle Journal
This 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

Review and Proposal for a Classification System of Soft Robots Inspired by Animal Morphology. [PDF]

Biomimetics (Basel), 2023
López-González A, Tejada JC, López-Romero J.   +2 more
europepmc   +1 more source

Research on Parameter Tuning of Electro-Hydrostatic Actuator Position Sliding Mode Controller Based on Enhanced Dynamic Sand Cat Search Optimization Algorithm

Energies
This paper proposes an Enhanced Dynamic Sand Cat Search Optimization algorithm (EDSCSO) designed to address the high-order nonlinearities and strong coupling issues in the parameter tuning of the position sliding mode controller for electro-hydrostatic ...
Weibo Li, Shuai Cao, Xiaoqing Deng, Junjie Chen, Hao Zhang   +4 more
doaj   +1 more source

Optimization of EHA sliding mode controller based on spider wasp algorithm

Zhongguo Jianchuan Yanjiu
ObjectiveThis 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, Hao ZHANG, Chenghu XU, Maojie ZHANG, Hualiang FANG   +4 more
doaj   +1 more source

A Machine Learning Model of Electro-Hydrostatic Actuators With the Low-Data Limit and Its Application to Fault Detection

IEEE Access
This paper presents a novel approach for modeling the dynamics of electro-hydrostatic actuators (EHAs) using the sparse identification of nonlinear dynamics (SINDy) algorithm. SINDy is a machine learning algorithm that identifies governing equations from
Soleiman Hosseinpour, Witold Kinsner, Nariman Sepehri   +2 more
doaj   +1 more source