Results 51 to 60 of about 5,164 (216)

A New Classification Method of Surrounding Rock Quality for Phyllite Tunnels Under the Condition of Layer Orientation Parallel to the Orientation of Tunnel Axis

Energy Science &Engineering, Volume 14, Issue 1, Page 47-60, January 2026.
Modified Mass Classification of Layered Rock Masses Based on the HC Method. ABSTRACT The HC method for hydropower is a commonly used rock mass quality classification technique in China's hydropower industry. Due to the anisotropic nature of the layered schist in the study area, and the varying angles between different tunnel layers and the tunnel axis,
Jing Yang, Jingyong Wang, Hao Luo, Ping Wang, Chengfeng Wu, Rui Zeng, Yupeng Lu, Hao Man, Feng Ji   +8 more
wiley   +1 more source

A Comprehensive Review of Humanoid Robots

SmartBot, Volume 1, Issue 1, March 2025.
A review of humanoid robotics discusses progress, system components, key technologies, challenges, and future directions, focusing on robot platform design and algorithms for perception, navigation, locomotion control, and intelligent manipulation.
Qincheng Sheng, Zhongxiang Zhou, Jinhao Li, Xiangyu Mi, Pingyu Xiang, Zhenghan Chen, Haocheng Xu, Shenhan Jia, Xiyang Wu, Yuxiang Cui, Shuhao Ye, Jiyu Yu, Yuhan Du, Shichao Zhai, Kechun Xu, Yifei Yang, Zhichen Lou, Zherui Song, Zikang Yin, Yu Sun, Rong Xiong, Jun Zou, Huayong Yang   +22 more
wiley   +1 more source

Integrated Design and Prototyping of a Robotic Head for Ocular and Craniofacial Trauma Simulators

The International Journal of Medical Robotics and Computer Assisted Surgery, Volume 21, Issue 1, February 2025.
ABSTRACT Background Medical simulation is relevant for training medical personnel in the delivery of medical and trauma care, with benefits including quantitative evaluation and increased patient safety through reduced need to train on patients. Methods This paper presents a prototype medical simulator focusing on ocular and craniofacial trauma (OCF ...
Marcello Gallerani, Roberto F. Pitzalis, Gianluca De Novi, Mark P. Ottensmeyer, Giovanni Berselli   +4 more
wiley   +1 more source

Anti‐Disturbance Model Predictive Control for Triaxial Servo System Based on Q‐Learning Algorithm Friction Identification

IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This article proposes a novel model predictive control (MPC) strategy for a triaxial servo system with the capability of suppressing multiple disturbances. The discrete state‐space model is built for a triaxial servo system, considering nonlinear disturbances as constraints, and Q‐learning algorithm is used to identify the parameters of the nonlinear ...
Qian Zhang, Minglei Tang, Chaohui Liu, Kaikai Diao   +3 more
wiley   +1 more source

Real Time Simulation Study of DEH for Digital Twin Steam Turbine Generators

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
The article introduces a new method using digital twin technology to model the digital electro‐hydraulic (DEH) system mathematically, enhancing its comprehensiveness and flexibility. It establishes a mathematical model of the DEH system and simulates its performance under various conditions. The RT‐Lab platform is used to create a simulation testbed to
Yiwei Zhou, Xiao Guo, Xiaoran Dai, Zhongcheng Lei, Wenshan Hu, Hong Zhou   +5 more
wiley   +1 more source

H∞ Control for a Secondary Regulation Electro‐Hydraulic Drive System of Robot Mobile Platform

International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
The secondary regulation hydrostatic transmission technology and H∞ control are applied to the mobile platform of the robot in this paper. The H∞ control system and the secondary regulation electro‐hydraulic drive system of the mobile platform are designed.
Faye Zang, Xiujie Yin, Richard Murray
wiley   +1 more source

Modeling and Fault Simulation of a New Double-Redundancy Electro-Hydraulic Servo Valve Based on AMESim

Actuators, 2023
The feedback spring rod of the armature assembly was eliminated in the double-redundancy electro-hydraulic servo valve (DREHSV), which employed a redundant design in contrast to the typical double-nozzle flapper electro-hydraulic servo valve (DNFEHSV ...
Qiuhui Liang, Wentao Wang, Yifei Zhai, Yanan Sun, Wei Zhang   +4 more
doaj   +1 more source

Periodic Flows in Microfluidics

Small, Volume 20, Issue 50, December 12, 2024.
This paper comprehensively reviews periodic flows in microfluidics, including their fundamentals, generation techniques, and applications. The theoretical fundamentals of periodic flows are explained using the hydraulic‐electric analogy and study the working principles of various periodic flow generation techniques.
Amith Mudugamuwa, Uditha Roshan, Samith Hettiarachchi, Haotian Cha, Hafiz Musharaf, Xiaoyue Kang, Quang Thang Trinh, Huan Ming Xia, Nam‐Trung Nguyen, Jun Zhang   +9 more
wiley   +1 more source

Modeling for finding armature assembly moment of inertia in jet pipe servo valve torque motor

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
Jet pipe electro-hydraulic servo valve is the heart of feedback control system, its performance plays an important role in establishing the properties of the system.
Xuan Hong Son PHAM
doaj   +1 more source

Novel Magnetic Circuit Topology of Linear Force Motor for High Energy Utilization of Permanent Magnet: Analytical Modelling and Experiment

Actuators, 2021
The magnetic circuit of existing linear force motors does not consider the issue of energy utilization of permanent magnets, and the structure is complicated.
Bin Meng, Hao Xu, Bei Liu, Mingzhu Dai, Chenhang Zhu, Sheng Li   +5 more
doaj   +1 more source