Results 21 to 30 of about 54,197 (216)
Possibility of applying mechanized coal mining in the mine 'Soko', with the comparative advantages of production results and impact [PDF]
Podzemni Radovi, 2014 Mining method applied in the RMU 'Soko', is repeatedly technologically modified and reached the maximum limit in terms of productivity, level of job performance and safety at work.
Denić Miodrag +4 more
doaj +1 more source
Improve the Xinanjiang model based on various hydrological model structures
Guan'gai paishui xuebao【Objective】 The Xinanjiang model is a hydrological model widely used for catchment modelling, but its accuracy depends on many factors. The objective of this paper is to present ways to improve the Xinanjiang model.
ZHANG Liping +5 more
doaj +1 more source
Research on automatic detection device of hydraulic support controller
Gong-kuang zidonghua, 2017 In view of problem of low detection efficiency existed in detection process of coal mine hydraulic support controller, an automatic detection device of hydraulic support controller was designed.
YANG Hanhong, MENG Feng
doaj +1 more source
Design of automation device for durability test of manual reversing valve of hydraulic support
Gong-kuang zidonghua, 2020 For problems of long test cycle, low efficiency and unable to realize automatic test in durability test of manual reversing valve of hydraulic support, an automation device for durability test of manual reversing valve of hydraulic support was designed ...
ZHAO Rui
doaj +1 more source
Height measurement method of hydraulic support based on multi-sensor data fusio
Gong-kuang zidonghua, 2017 In view of problems that height measurement of hydraulic support on fully mechanized coal mining face was difficult and measurement result was not accurate, taking two-column shield hydraulic support as an example, expression of hydraulic support height ...
ZHANG Kun +4 more
doaj +1 more source
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
ActuatorsA hydraulic support is one of the most important pieces of equipment in fully mechanized coal mining, and its stability and reliability will have a direct impact on fully mechanized coal mining.
Bowen Xie, Yang Yang
doaj +1 more source
Inverse kinematics analysis of hydraulic support
Gong-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 +1 more source
Advanced Engineering Materials, EarlyView.Different Al/Al bimetals with a single engineered interface reveal how mechanical mismatch governs fatigue crack growth under cyclic loading. Additionally, loading–unloading–reloading tests link the microyielding behavior to the fatigue crack growth resistance, while crack‐path analysis reveals toughening mechanisms at the interface, highlighting ...
Sebastian Vollath +2 more
wiley +1 more source