Results 1 to 10 of about 485,023 (228)

Human reliability assessment of intelligent coal mine hoist system based on Bayesian network [PDF]

open access: yesScientific Reports, 2022
The human reliability of intelligent coal mine hoist operation system is affected by many factors, in order to reduce the occurrence of human error in the hoist system and improve the reliability of the system.
Linhui Sun   +6 more
doaj   +3 more sources

A Thermo-Mechanical Stress Based Fatigue Life Evaluation of a Mine Hoist Drum Brake System Using COMSOL Multiphysics. [PDF]

open access: yesMaterials (Basel), 2022
In this study, the fatigue usage factors for Findley and Matake stress-based criteria were determined in the case of an MK5×2 mine hoist drum brake system subjected to cyclic maneuver braking.
Radu SM   +5 more
europepmc   +2 more sources

Inspection Method of Rope Arrangement in the Ultra-Deep Mine Hoist Based on Optical Projection and Machine Vision. [PDF]

open access: yesSensors (Basel), 2021
Due to the importance of safety detection of the drum’s rope arrangement in the ultra-deep mine hoist and the current situation whereby the speed, accuracy and robustness of rope routing detection are not up to the requirements, a novel machine-vision ...
Shi L, Tan J, Xue S, Deng J.
europepmc   +2 more sources

Simulation Modeling and Temperature Over-Advance Perception of Mine Hoist System Based on Digital Twin Technology

open access: yesMachines, 2023
The temperature prediction of hoist motor is one of the effective ways to ensure the safe production of mine hoist. Digital twin technology is a technology that combines the physical system of the real world with the digital model of the virtual world ...
Xuejun Liang, Juan Wu, Kaiyi Ruan
doaj   +2 more sources

Preparation and Tribological Properties of Lanthanum Stearate Modified Lubricating Oil for Wire Rope in a Mine Hoist. [PDF]

open access: yesMaterials (Basel), 2021
In view of the serious friction and wear on the surface of a hoisting wire rope caused by the failure of lubrication under severe hoisting conditions, a study on the tribological characteristics of lanthanum stearate modified lubricating oil (LSMLO) was ...
Zhang Y   +5 more
europepmc   +2 more sources

Model-based sensor fault detection, isolation and tolerant control for a mine hoist

open access: yesMeasurement + Control, 2022
Encoder is essential for speed control and very valuable in condition monitoring for a mine hoist and the failure in sensor measurements can lead to serious accidents.
Xiao Chen   +3 more
doaj   +2 more sources

Expert Control of Mine Hoist Control System [PDF]

open access: yesWireless Communications and Mobile Computing, 2021
This paper presents a kind of intelligence control algorithm for the mine hoist control system. Firstly, the desired output of the system is described by a speed curve of hoisting process. Then, the structure diagram of the hoist system is constructed, and the expert PID controller is designed based on the model of this control system; the expert ...
Xiuzhi Liu, Tao Sui
openaire   +2 more sources

Design and experimental study of electrical and mechanical brake for mine hoist

open access: yesMechanics & Industry, 2021
To meet the requirement of the braking response of the coal mine hoist, a new electromechanical braking technology for mine hoists is proposed, the principle of electromechanical braking of mine hoists is demonstrated, and the detailed parameters and ...
Jin Huawei   +4 more
doaj   +2 more sources

Research on the performance degradation assessment method of a mine hoist braking system based on variable step-size fruit fly optimization algorithm-complex Gaussian wavelet support vector data description. [PDF]

open access: yesSci Prog, 2020
According to the characteristics of the constant deceleration braking system of hoist, a variable step-size fruit fly optimization algorithm–complex Gaussian wavelet support vector data description method is proposed in this article to evaluate the ...
Li J   +5 more
europepmc   +2 more sources

Study on Health Assessment Method of a Braking System of a Mine Hoist. [PDF]

open access: yesSensors (Basel), 2019
This paper presents a method for calculating the health degree (HD) of a braking system of a mine hoist combined with three-level fuzzy comprehensive assessment (TLFCA) and a back-propagation neural network (BPNN).
Li J   +6 more
europepmc   +2 more sources

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