Results 171 to 180 of about 11,561 (230)

A Multi-Level Nonlinear Cumulative Fatigue Damage Life Prediction Model Considering Load Loading Effects. [PDF]

Materials (Basel)
Yang B, Huo J.
europepmc   +1 more source

Stiffness Compensation in Variable Displacement Mechanisms of Swash Plate Axial Piston Pumps Utilizing Piezoelectric Actuators. [PDF]

Materials (Basel)
Zhang G, Ma M, Lin YJ.
europepmc   +1 more source

A double closed loop digital hydraulic cylinder position system based on switching active disturbance rejection control. [PDF]

Sci Rep
Jiang S, Zhao G, Huang F, Liu W, Chen Y, Zhang L.   +5 more
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Investigation of the performance of basalt fiber reinforced Cement-Stabilized macadam derived from moderately weathered tunnel slag. [PDF]

Sci Rep
Zhao C, Wang D, Zheng Y, Zhang H, Liu C.
europepmc   +1 more source

Study on the grouting repair performance of shield tunnel segments based on high-fluidity slurry. [PDF]

Sci Rep
Huang K, Zhou K, Huang B, Wu X, Li Z, Xing K.   +5 more
europepmc   +1 more source

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Electro-Hydraulic Servo Actuation for Well Completions

SPE Annual Technical Conference and Exhibition, 2022
Objectives/Scope Well Completions are challenged with the demands of managing increased multiple production zones. This paper addresses a solution to these issues: Reduce the number of hydraulic control lines.
Daniel M. Lerner, Andre E. Orban
openaire   +1 more source

Fault Diagnostic of Electro-Hydraulic Servo Valve

Advanced Materials Research, 2012
In order to achieve the fault diagnostic and degradation assessment of the electro-hydraulic servo valve, a system of prognostic and health management based on the data-driven approach for the electro-hydraulic servo valve is presented. FMMEA performed in this study considered the degree of sub-components in electro-hydraulic servo valve.
Hai Yang Pan, Shu Nan Liu, Yong Ming Yao, Yi Lin Jiang   +3 more
openaire   +1 more source

Research of non-servo valve electro-hydraulic servo system

Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology, 2011
A new non-servo valve electro-hydraulic servo system was researched. To control load, the system uses bidirectional fixed displacement hydraulic pump that is driven by AC PMSM directly drives servo-hydraulic cylinder. The hydraulic actuating unit was designed base on one design parameter and performance target.
Geqiang Li, Hanjie Wang, Xiaodong Huang
openaire   +1 more source