Sincere thanks are extended to the following people who reviewed manuscripts submitted to the Journal of Hydraulic Engineering during the period of July 1, 2023, to June 30, ... Haochen Li University of Tennessee, Knoxville. Pengcheng Li University of Alberta. ... Chao Wang China Institute of Water Resources and …
2.1. Model of the Hydraulic Cylinder. Hydraulic cylinder 2, which drives the arm, is taken as an example of a submodel. As shown in Figure 2, it includes cylinder 2, rod 2, a …
The machine for such a task is the hydraulic breaker which turns the hydraulic energy supplied by a positive displacement pump into mechanical energy as percussions of a piston against a chisel.
This paper focuses on the analysis of the mechanical characteristics of the hydraulic high voltage circuit breaker. We take the hydraulic high voltage circuit …
Yantai Wangyuan Hydraulic Co.,Ltd. is a professional manufacturer and exporter committed to development, production and sales of hydraulic breakers and attachments for construction machinery. In 2008, the …
This paper analyzes the mechanical characteristic of the hydraulic HV circuit breaker in the smart substation, selects the energy storage motor combined with the fuzzy comprehensive evaluation model, opening circuit operation and closed circuit operation as the comprehensive evaluation factors, determines the weight distribution …
Hydraulic support is a complex parallel mechanism composed of multiple kinematic pairs. In the work of hydraulic support, clearances between kinematic pairs are inevitable, which lead to the deterioration of the support's working performance, and may even affect support's normal work in serious cases. To study the influence of clearances …
Be sure to inspect the key wear points of a hydraulic breaker on a daily basis. Traditionally, crusher performance has been measured by tons of rock processed per hour, but the cost per ton of ...
The hydraulic breaker uses hydraulic oil and air pressure to push the piston back and forth to hit the chisel, so that the energy is transferred to the tip of the chisel to achieve the crushing ...
In this paper, modified transformer-based fault detection for a hydraulic pump is performed using the pressure signals of the hydraulic pump. The pump is considered a swash plate axial piston pump used in the excavator. Additionally, the outlet pressure data of the pump are extracted based on Amesim. The proposed transformer is a modified transformer, …
2019 Stanley, MB10 Hydraulic Breaker Attachment w/ X-Change Loader Mounting Frame and Bobcat Excavator Cap, 1000 ft. lb. Impact Energy Class, Loader Mounting Frame, Moil Point Hammer / Breaker Attachments, 1000 ft.-lb. Impact Energy ClassX-Change Loader Mounting FrameBobcat Excavator CapMoil PointAll Hoses & …
The intelligent circuit breaker model was designed, designed in modular, divided into data acquisition, switching control, data analysis, forecasting and early warning modules, and each module unit is designed and researched, using proposed breaking algorithm. Based on the ARM7, the intelligent circuit breaker model was designed. As …
Lv C, Wang H, Cao D. High-precision hydraulic pressure control based on linear pressure-drop modulation in valve critical equilibrium state. IEEE Trans Ind Electron 2017; 64(10): ... Li L, Li X, Wang X, et al. Analysis of downshift's improvement to energy efficiency of an electric vehicle during regenerative braking.
Currently, Li Ping Wang holds the position of Chairman for Jiangsu Hengli Hydraulic Co., Ltd. and General Manager & Executive Director of Changzhou Hengli Intelligent Equipment Co., Ltd. (a subsidiary of Jiangsu Hengli Hydraulic Co., Ltd.) and General Manager & Executive Director at Jiangsu Hengli Investment Co. Ltd. Mr. Wang …
The pattern of hydraulic fractures (HFs) was reconstructed based on the fractal dimension concept. The results indicate that the tendency of the complex rock layers to initiate fractures toward the coal weakens the trend of increasing fracture initiation pressure with rising geostress. ... {Bo Li and Zhen Shi and Junxiang Zhang and Nannan …
Yu-Li Wang. National Taiwan University. Verified email at email.arizona.edu. Hydrogeology Geophysics. Articles Cited by Public access. Title. Sort. ... Multiscale hydraulic conductivity characterization in a fractured granitic aquifer: the evaluation of scale effect. S Ren, Y Zhang, TC Jim Yeh, Y Wang, BJ Carr ...
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Semantic Scholar extracted view of "Optimization of breaker schedules for stimulation of tight gas reservoirs" by H. Li et al. ... {Optimization of breaker schedules for stimulation of tight gas reservoirs}, author={H. Li and John Yilin Wang}, journal={Journal of Natural Gas Science and Engineering}, year={2014}, volume={16}, pages={31-43}, url ...
Estimation of Impact Loads in a Hydraulic Breaker by Transfer Path Analysis. Chang-Seop Song Dae-ji Kim Jintai Chung Kang Won Lee S. Kweon Young …
Browse our products and documents for LC, LE, LI, LX, LXI Molded Case Circuit Breaker - This is a legacy product. Skip To Main Content. USA Our Brands Item count in cart is 0 My Cart Item count in cart is 0 My Documents Login/Register User …
High voltage circuit breakers are the most important protection and control apparatus in power system. As a core part of circuit breakers, the operating mechanisms have a trend to be hydraulic ...
The operating mechanism is a key component of circuit breakers. The action of hydraulic operating mechanism in circuit breaker is different from general hydraulic mechanism for its high speed ...
A number of flowback samples derived from horizontally drilled hydraulic fracturing (HDHF) operations reveal consistent detections of halogenated organic species, yet the source of these compounds remains uncertain. Studies simulating subsurface conditions have found that oxidative "breakers" can halogenate certain additives, but …
High voltage circuit breakers are the most important protection and control apparatus in power system. As a core part of circuit breakers, the operating mechanisms have a trend to be hydraulic-style in high voltage power grid. Compared with other hydraulic systems, the hydraulic operating mechanisms have the characteristics of …
SCIENCE CHINA Technological Sciences • RESEARCH PAPER • January 2011 Vol.54 : 116–125 doi: 10.1007/s11431-010-4154-6 Hydraulic operating mechanisms for high voltage circuit breakers: Progress evolution and future trends LIU Wei1, XU Bing1*, YANG HuaYong1, ZHAO HongFei2 & WU JunHui2 1 State Key Laboratory of Fluid Power …
For the hydraulic breaker and pneumatic rock breaking with CO 2 ice powder, the PPV attenuates unstably with the distance, which can be divided into three stages, namely the rapid descent region, ... Wang ZW, Li XB, Peng K et al (2015) Impact of blasting parameters on vibration signal spectrum: determination and statistical evidence. …
Download scientific diagram | Schematic of the hydraulic breaker: (a) isometric view, (b) cross section A–A′. from publication: Estimation of Impact Loads in a Hydraulic Breaker by Transfer ...
Abstract Coal bed methane reservoirs possess low to ultra-low permeability. In order to improve the production from CBM wells, stimulation techniques were deployed. Background This article reviews the most cost-effective, time-saving, and eco-friendly fracturing fluid which is a mix of water, guar gum, and sodium acetate. This article also …
Wang C, Zhang Z, Wang H, et al. Disturbance observer-based output feedback control of hydraulic servo system considering mismatched uncertainties and internal pressure dynamics stability. IET Control Theory Appl 2020; 14(8): 1046–1056.
High voltage circuit breakers are the most important protection and control apparatus in power system. As a core part of circuit breakers, the operating …
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