Results 71 to 80 of about 100,986 (232)

DEVELOPMENT OF AN ELECTRO-HYDRAULIC SYSTEM FOR REVERSE CONTROL OF AN ATTACHMENT

Mechanics of Machines, Mechanisms and Materials
The enhancement of the technical level of agricultural machines involves expanding their functional capabilities through the use of additional control modes, enabling the unit to operate with new working equipment. Currently, automation tools are being intensively developed, and the intellectualization level of tractors is primarily increasing due to ...
Anton A. Ananchikov, Nikolay N. Ishin, Dmitry V. Semashko   +2 more
openaire   +1 more source

Robust Position Control of an Electro‐Hydraulic Actuator via Metaheuristic Optimization of a Fractional‐Order PID Controller

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, a robust position control strategy is presented for a two‐stage electro‐hydraulic actuator system using a fractional‐order proportional–integral–derivative (FOPID) controller tuned by Kirchhoff's law algorithm (KLA). Electro‐hydraulic systems exhibit strong nonlinearities, parameter uncertainties, and external disturbances ...
Ridvan Firat Cinar, Davut Izci, Serdar Ekinci, Mohammad Salman, Mohammad Al‐Rabayah, Ali Akdagli, Ali Yildiz, Filiz Karaomerlioglu, Gökhan Yüksek   +8 more
wiley   +1 more source

Application of draw wire sensor in the tracking control of an electro hydraulic actuator system

, 2015
A draw wire sensor is considered as a contact measurement method. It is normally used to measure the speed and position of a system. A draw wire sensor is convenient especially when a low cost solution and a small sensor dimension are desired.
Othman, S. M., Salleh, S., Abidin, H. Z., Rahmat, M. F.   +3 more
core   +2 more sources

Research on PID Position Control of Multi-joint Manipulator for Rock Drill Car

工程科学与技术, 2019
Hydraulic drilling rigs play an important role in modern tunneling construction. Existing hydraulic drilling rigs need to control 6 hydraulic cylinders and 2 hydraulic motors separately when searching for holes.
Hongbo LUO, Xianyang SHI, Peng WEI, Hao WANG   +3 more
doaj  

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

Structural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

Behavior of manufactured sand and recycled coarse aggregate concrete‐filled steel tubular stub columns with circular section

Structural Concrete, EarlyView.
Abstract Accelerated urbanization has intensified environmental concerns due to excessive natural resource consumption and construction waste generation. Circular concrete‐filled steel tube (CFST) columns incorporating manufactured sand recycled coarse aggregate (MS‐RCA) concrete have emerged as an innovative composite element offering notable ...
Minsheng Guan, Qi Chen, Gang Wang, Aiguo Xiong, Ying Wang, Le Li, Anne W. M. Ng, Qing Quan Liang   +7 more
wiley   +1 more source

ANFIS modeling of electro-hydraulic actuator system [PDF]

, 2012
Precise control of electro-hydraulic actuator (EHA) system has been an interesting subject due to its nonlinearities and uncertainties characteristics. Good control can be designed when precise model of the system is available.
T. G. Ling, Ling, T. G., Rahmat, Mohd. Fua'ad, Rahmat, M. F., Husain, Abdul Rashid, A. R. Husain, M. F. Rahmat, Husain, A. R.   +7 more
core   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

High Voltage, EarlyView.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li   +6 more
wiley   +1 more source

Investigation of the Evolution Mechanism and Multiphysics Coupling in Tree‐Contact Single‐Phase‐to‐Ground Fault

High Voltage, EarlyView.
ABSTRACT Tree‐contact single‐phase‐to‐ground fault (TSF) is a common and hazardous type of failure in distribution networks. TSF is likely to occur when overhead conductors contact moist tree branches, potentially leading to insulation breakdown, posing serious threats to grid safety.
Wenjun Ning, Zuopeng Li, Mingxian Liu, Jianbo He, Tianxiang Chen, Shenli Jia   +5 more
wiley   +1 more source

IMPROVING ELECTRO-HYDRAULIC SYSTEM PERFORMANCE BY DOUBLE-VALVE ACTUATION

, 2016
Restricted by narrow bandwidth of the existing high-flow servo valves, dynamic performance of high-flow electro-hydraulic servo systems can only be enhanced to a certain extent by advanced control algorithms.
Long Quan, Yanhong Bai
core   +1 more source