Results 41 to 50 of about 10,681 (234)

Disturbance observer–based nonlinear energy-saving control strategy for electro-hydraulic servo systems

Advances in Mechanical Engineering, 2017
Precise tracking performance and significant energy-saving effect are both important issues for electro-hydraulic servo system. Nevertheless, the electro-hydraulic servo system usually demonstrates inferior efficiency compared with other available ...
Weiping Wang, Bo Wang
doaj   +1 more source

Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway

Energy Science &Engineering, EarlyView.
Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu, Bo Li, Jiawei Xie, Xiaoming Ni, Shaoren Wei, Chengtao Yang, Yubo Zhang, Haixiao Lin, Wei Zhao, Tao Wang   +9 more
wiley   +1 more source

A New Active Disturbance Rejection Control Tuning Method for High-Order Electro-Hydraulic Servo Systems

Actuators
In our industry, active disturbance rejection control already has been used to enhance the performance of the electro-hydraulic servo systems, despite the fact that electro-hydraulic servo systems are usually reduced to first-order and second-order ...
Junli Zhang, Baochun Lu, Chuanjun Chen, Zhengyang Li   +3 more
doaj   +1 more source

Beyond feasibility filters: How expertise heterogeneity enables innovation recognition

Strategic Management Journal, EarlyView.
Abstract Research Summary Organizations often struggle to identify promising innovations that balance novelty and feasibility in multidisciplinary domains, yet how does evaluator expertise heterogeneity shape these assessments? This study examines how evaluator expertise influences innovation evaluation through a field experiment with National ...
Jacqueline N. Lane, Zoe Szajnfarber, Jason Crusan, Michael Menietti   +3 more
wiley   +1 more source

Analysis and research on the constant-rate penetration mechanism of the seabed cone penetration test system

Frontiers in Mechanical Engineering, 2023
The seabed Cone Penetration Test (CPT) system is a common method for investigating offshore soil. This paper focuses on a new subsea CPT method for assessing physical and mechanical properties of marine sediments. The new method enables automatic docking
Ziqiang Ren, Ziqiang Ren, Jiawang Chen, Jiawang Chen, Jin Guo, Jin Guo, Bijin Liu, Xiaohui Hu, Xiaohui Hu, Hang Zhou, Hang Zhou, Houhong Liu, Feng Gao, Feng Gao   +13 more
doaj   +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

Electromechanical Simulation of Actively Controlled Rotordynamic Systems with Piezoelectric Actuators [PDF]

, 1991
Theories and tests for incorporating piezoelectric pushers as actuator devices for active vibration control are discussed. It started from a simple model with the assumption of ideal pusher characteristics and progressed to electromechanical models with ...
Kascak, A. F., Lin, Reng Rong, Montague, G., Palazzolo, A. B.   +3 more
core   +1 more source

ESO Based MPC Design and Experiment Investigation for a Fin Stabilizer Electro-Hydraulic Servo System [PDF]

In the present study, an extended state observer-based model predictive controller was designed to enhance the response rate and disturbance rejection of the fin electro-hydraulic servo system without overshoot and extend the application of fin ...
Liang, Lihua, Liu, Yanxin, Song, Jiguang, Wang, Jingfu   +3 more
core   +2 more sources

Failure of Glass Fiber‐Reinforced iPP in Static and Cyclic Loading Characterized by Factorizability of Time, Temperature, and Fiber Orientation

Journal of Applied Polymer Science, Volume 143, Issue 2, January 10, 2026.
By characterizing the deformation rate‐ and temperature‐dependent yield stress on an arbitrary reference fiber orientation and multiplying it with the anisotropic scaling function obtained from the yield stresses measured for various fiber orientations at a single temperature and deformation rate, it is possible to perform lifetime predictions for both
S. J. J. van den Broek, L. E. Govaert, T. A. P. Engels   +2 more
wiley   +1 more source

Extended state observer–based fractional order proportional–integral–derivative controller for a novel electro-hydraulic servo system with iso-actuation balancing and positioning

Advances in Mechanical Engineering, 2015
Aiming at balancing and positioning of a new electro-hydraulic servo system with iso-actuation configuration, an extended state observer–based fractional order proportional–integral–derivative controller is proposed in this study. To meet the lightweight
Qiang Gao, Yuanlong Hou, Tongbin Deng, Chao Wang, Runmin Hou   +4 more
doaj   +1 more source