Results 51 to 60 of about 4,050 (203)

PID–PFC control of continuous rotary electro-hydraulic servo motor applied to flight simulator

The Journal of Engineering, 2018
Due to the uncertainties caused by high non-linearity, friction, leakage and other external factors existing in the flight simulator with continuous rotary electro-hydraulic servo motor and the traditional control strategies discontenting with the high ...
Wang X. Jing, Liu M. Zhen, Chen Shuai, Liu Hao, Xin Wang   +4 more
doaj   +1 more source

Position Controller for Direct Driven Electro-Hydraulic System

International conference Fluid Power 2019: Conference Proceedings, 2019
In the past few years, decentralized hydraulics gain advantage over classical hydraulics due to lower energy consumption, lower pressure losses in pipelines and easy automatization. In this paper, Direct Driven Electro-Hydraulic (DDEH) drive is made in parallel with a classical proportional hydraulic system. In DDEH control method the valve is replaced
Juraj Benić, Željko Šitum
openaire   +1 more source

Radiative Hybrid Nanofluid Flow Over a Porous Riga Surface: A Fuzzy–ANN Modeling Approach

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a fuzzy–ANN model to investigate the nonlinear thermal transport in a tangent hyperbolic (Tanh) hybrid nanofluid flow past a porous Riga surface, considering the effects of Rosseland diffusion, chemical reactions, and internal volumetric heating.
Azad Hussain, Rabia Zetoon, Reeha Iqbal
wiley   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source

Stable Switching Control Strategy of the Support Pressure and Velocity of Shield Machine Gripper Shoes

Shock and Vibration, 2019
An electro-hydraulic servo position and pressure compound control method was investigated considering the working principle of a hydraulic stepping motor of a shield machine gripper shoe and its practical working characteristics in the supporting process.
Nannan Liu, Jishen Peng, Liye Song, Pinhe Wang, Kun Zhang   +4 more
doaj   +1 more source

Dynamic response at the terminus of oblique intersecting joints subjected to stress waves

Deep Underground Science and Engineering, EarlyView.
This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu, Xiang Chen, Honglu Fei, Shijie Bao, Jian Guo   +4 more
wiley   +1 more source

Development and application of adjustable electro-hydraulic actuator

You-qi chuyun, 2020
In view of the current situation that adjustable electro-hydraulic actuators for pipeline depend on import, effortshave been made to the localization of adjustable electro-hydraulic actuator to guarantee the safety of national energy, toimprove the ...
Xiliang YANG, Yunfeng SUN, Xiaozheng YANG, Xiguang GAO, Liwen ZHANG, Xiaolong REN, Qingjun YANG   +6 more
doaj   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source

Climate Driven Water Table Changes and Their Influence on Liquefaction Response of Integral Bridges

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Integral abutment bridges (IABs) eliminate bearings and joints but transfer seismic demand directly into the surrounding soil, making their response highly sensitive to groundwater conditions and soil–structure interaction. This study presents a 60 g centrifuge testing programme on single‐span IABs designed to isolate the influence of water ...
Yazan B. Asia, Gopal S. P. Madabhushi
wiley   +1 more source

Optimum analysis of inclined angle of mixing blades in planetary mixer based on discrete element method

Advances in Mechanical Engineering
Based on production practice, it is known that the mixing scraper is an important mechanical part that the planetary mixer directly contacts with the concrete.
Wenmin Lu, Shumei Chen, Jinan Zheng, Xinyuan Fu, Guohua Fu, Jia Zhong, Qingyang Li, Zhuangbin Zhen   +7 more
doaj   +1 more source