Results 1 to 10 of about 381,789 (309)

Dynamic impact experiment and response characteristics analysis for 1:2 reduced-scale model of hydraulic support

open access: yesInternational Journal of Mining Science and Technology, 2021
It is significant to research the impact resistance properties of hydraulic support due to its key support role in the fully mechanized mining face. However, it is difficult for the entire hydraulic support to implement the impact experiment underground ...
Huaiwei Ren   +6 more
doaj   +3 more sources

Support state perception and data processing technology of hydraulic support

open access: yesGong-kuang zidonghua, 2021
The support state perception and data processing of hydraulic support are the key factors to realize adaptive support of hydraulic support and advance prediction and early warning of roof disasters.
PANG Yihui1,2
doaj   +2 more sources

Inverse kinematics analysis of hydraulic support

open access: yesGong-kuang zidonghua, 2018
For problem that existing forward kinematics analysis methods of hydraulic support could not predict attitude of top beam accurately, an inverse kinematics analysis method of hydraulic support was put forward.
LU Xuliang, YAN Haifeng, ZHANG Li
doaj   +2 more sources

SUPPORT VECTOR MACHINE FOR HYDRAULIC SUPPORT RELIABILITY PREDICTION

open access: yesJixie qiangdu, 2017
In order to enhance the competitiveness of the domestic hydraulic support. It is imperative to carry out reliability engineering. The reliability evaluation of the hydraulic support in service can effectively provide reference for the development and ...
DING Fei   +3 more
doaj   +1 more source

Study on Hydrological Calculation Model of Flood Control in the Middle and Lower Reaches of the Chuhe River under the Background of Urbanization [PDF]

open access: yesE3S Web of Conferences, 2023
The traditional method of hydrology and water conservancy calculation is based on the assumption of natural runoff, while the applicability of method has weakened in the urbanization-affected river basins.
Hu Jian   +4 more
doaj   +1 more source

Startup Process Optimization of Hydropower Unit Based on Stress Measurement of Francis Turbine Runner

open access: yesFrontiers in Energy Research, 2022
The energy efficiency characteristics of the turbine, cavitation performance of the runner, and operation stability of the unit are the three major concerns of a hydropower field, the latter two factors leading to the units’ cavitation and stability ...
Ye Zhou   +3 more
doaj   +1 more source

Research on Intelligent Control System of Hydraulic Support Based on Position and Posture Detection

open access: yesMachines, 2022
In the study of coal mining, the position and posture, the working status, and the straightness of the hydraulic support are critical to the safety of the coal mine.
Yi Zhang   +5 more
doaj   +1 more source

Hydraulic support straightening method based on maximum correntropy Kalman filtering algorithm

open access: yesGong-kuang zidonghua, 2022
The existing hydraulic support straightening method is affected by the sensor measurement error and the hydraulic support moving error, which make the straightening error larger.
SONG Danyang   +6 more
doaj   +1 more source

Comparative Analysis of High Water Hydraulic Fluid for Hydraulic Support [PDF]

open access: yesInternational Journal of Oil, Gas and Coal Engineering, 2021
In view of the use and existing problems of high water cut hydraulic fluid for hydraulic support in Shendong mining area, the water quality of each mine in Shendong mining area was analyzed. The influence of mine water quality on hydraulic fluid was analyzed, including the influence of water hardness, the influence of impurities in water, the influence
openaire   +1 more source

Manual regulation and control decision model of middle hydraulic support cluster automation in the intelligent working face

open access: yesGong-kuang zidonghua, 2022
The intelligent working face has abnormal working conditions such as lost support, uneven straightness, and support skew after the automatic following of hydraulic support. Therefore, manual regulation and control are needed.
ZHANG Jintao   +3 more
doaj   +1 more source

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