Results 61 to 70 of about 10,681 (234)

Study on damage and failure characteristics of loaded gas‐bearing rock–coal–rock combination structures

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 800-815, December 2025.
The influence of gas on the instability and failure of rock–coal–rock combinations is considered. The damage characteristics of gas‐bearing rock–coal–rock combinations under different confining pressures, axial loading rates, and gas are revealed. A constitutive model for gas‐bearing rock–coal–rock damage considering gas is established.
Feng Du, Kai Wang, Wanyu Yang, Jiazhi Sun, Xiyang Fang, Yiyang Zhang, Longyong Shu, Liang Wang, Jiaxu Zhou   +8 more
wiley   +1 more source

Improving Aircraft Engines Prognostics and Health Management via Anticipated Model-Based Validation of Health Indicators [PDF]

, 2014
The aircraft engines manufacturing industry is subjected to many dependability constraints from certification authorities and economic background. In particular, the costs induced by unscheduled maintenance and delays and cancellations impose to ensure a
LAMOUREUX, Benjamin, MASSÉ, Jean-Rémi, MECHBAL, Nazih   +2 more
core   +6 more sources

Influence of Vibration on Servo Valve Performance and Vibration Suppression in Electro-Hydraulic Shaking Table

Machines
With the rapid progress of industrial technology in recent years, servo controllers have the characteristics of precise control and short response time and are widely used in different industrial fields.
Tao Wang, Sizhuo Liu, Zhenyu Guo, Yuelei Lu   +3 more
doaj   +1 more source

Modelling and LPV control of an electro-hydraulic servo system [PDF]

2006 IEEE Conference on Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006 IEEE International Symposium on Intelligent Control, 2006
This paper aims to show the modelling and control of an hydraulic servo system, targeting at frequency domain based controller design and the implementation of a LPV controller. The actual set-up consists of a mass, moved by a hydraulic cylinder and an electro-hydraulic servo valve.
Naus, G.J.L., Wijnheijmer, F.P., Post, W.J.A.E.M., Steinbuch, M., Teerhuis, A.P.   +4 more
openaire   +2 more sources

Corrosion Inhibition Characteristics and Mechanical Properties of High‐Strength Galvanized Steel Wire in the Presence of N,N′‐Dimethylethanolamine

Engineering Reports, Volume 7, Issue 12, December 2025.
This paper proposes N,N′‐DMEA to inhibit HSGSW corrosion, characterizes its induced mechanical degradation, and identifies the optimum N,N′‐DMEA ratio for HSGSW in cable‐stayed bridge structures. It offers a new technical approach for protecting bridge cable high‐strength steel wires.
Mingchun Yang, Gangnian Xu, Zian Zhang, Hao Zhang, Keliang Wang, Baoyao Lin, Junyan Wu   +6 more
wiley   +1 more source

Research and Experiment on an Adaptive Feedforward Compensation Composite Control Strategy for an Electro-Hydraulic Servo System

IEEE Access
In order to reduce the tracking and response errors of the electro-hydraulic servo system, improve the dynamic response quality of the system, enhance the adaptive ability of the system, and effectively solve the common problems of nonlinear interference
Mei Luhai
doaj   +1 more source

POSITION CONTROL OF ELECTRO-HYDRAULIC SERVO SYSTEM WITH FRICTION COMPENSATION

EPRA International Journal of Multidisciplinary Research (IJMR), 2023
This work presents a model-based friction compensation technique and an integral adaptive backstepping controller to improve the position control of the electrohydraulic servo system. The controller design uses a continuous approximation of the LuGre friction model and the Lyapunov theory of nonlinear systems.
null Michael Enyan, null Luis Miguel Ruiz Páez   +1 more
openaire   +1 more source

Hydrodynamic Removal of Sediments in Open Irrigation Channel

Modern Agriculture, Volume 3, Issue 2, December 2025.
The experimental study investigated the hydraulic behaviour of particle transport in an irrigation channel equipped with submerged longitudinal structures designed to reduce the effective cross‐sectional area. The findings demonstrate that the placement of parallel barriers along the flow axis generates localized acceleration and turbulence, which ...
Israel E. Herrera‐Díaz, Rosario Martínez‐Yáñez, Edith A. Gamiño‐Ramírez, César Gutiérrez‐Vaca   +3 more
wiley   +1 more source

Nonlinear dynamic analysis and control of a hydraulic press electro-hydraulic servo system

Journal of Low Frequency Noise, Vibration and Active Control, 2019
The internal electro-hydraulic servo system of a hydraulic press is affected by the non-linear friction, and it becomes non-linear, unstable under vibration. In this study, the dynamic behavior and control of such a system were investigated.
Chin-Tsung Hsieh, Chien-Pang Lai
doaj   +1 more source

Improvement of Mechanical Performance of Large Capacity Dry‐Type On‐Board Traction Transformer Under Short‐Circuit Electromagnetic Force

High Voltage, Volume 10, Issue 6, Page 1558-1570, December 2025.
ABSTRACT The application of dry‐type on‐board traction transformers (D‐OBTTs) aims to achieve lightweight electric multiple units (EMUs) and support the approach for carbon neutrality. However, the production of large capacity D‐OBTTs are limited due to the defects in insulation materials under the impact of short‐circuit electromagnetic force.
Woyang Li, Dongyang Wang, Yingyi Xia, Tiandong Chen, Lijun Zhou, Qian Lei, Yunyun Qian   +6 more
wiley   +1 more source