Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Lirong Wan"'
Publikováno v:
ACS Omega, Vol 9, Iss 22, Pp 23451-23461 (2024)
Externí odkaz:
https://doaj.org/article/424f467595b44f5f8a68de16f224050d
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract In view of the problem of poor coupling adaptability and easy rib spalling of coal wall in large mining height comprehensive mining, based on the effective inhibition effect of face guard mechanism on coal wall spalling, the structural chara
Externí odkaz:
https://doaj.org/article/84385b1baefc48f3b7c676ed67ab6b1c
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-17 (2023)
Abstract The combined rock breaking method with the saw blade and conical pick is proposed to improve the rock breaking efficiency. The numerical simulation of combined rock breaking with the saw blade and conical pick is established to investigate t
Externí odkaz:
https://doaj.org/article/49c223cccd5e492580f51a6d037ea8d2
Publikováno v:
Heliyon, Vol 10, Iss 5, Pp e26972- (2024)
Due to the influence of structural clearances, the shearer's oscillates and jumps concerning the scraper are frequent, which induces the collision and vibration impact of the traction components and exacerbates the traction failure of the shearer. Th
Externí odkaz:
https://doaj.org/article/51defa7bd7ed40b68707535b6973191d
Publikováno v:
Shock and Vibration, Vol 2024 (2024)
The pose disturbance of the guide shoe under complex working conditions can lead to collision, impact, and wear failure between the guide shoe and the pin row. To explore the damage law of pose disturbance on the guiding shoe, a rigid-flexible coupli
Externí odkaz:
https://doaj.org/article/279102a7b8004e1faec459c0b81b18be
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Top coal caving in fully mechanized caving mining will cause an irregular impact on the caving mechanism of hydraulic support. The vibration response of the caving mechanism varies under different forms of impact. This response difference is
Externí odkaz:
https://doaj.org/article/6a837d89b36a42afbac4c38e1303cf58
Publikováno v:
IEEE Access, Vol 11, Pp 117670-117684 (2023)
Due to the harsh working environment of hydraulic excavators, the actuators are subjected to high intensity and long duration, resulting in fatigue-induced cracks, fractures, and other failures, leading to work interruptions and delays, reducing the
Externí odkaz:
https://doaj.org/article/28207eb1e9f842c4949cedcf21382aec
Publikováno v:
IEEE Access, Vol 11, Pp 94009-94022 (2023)
In the working process of the axial piston pump, the composite multi-degree motion of the slipper and its coupling, as well as the complex working conditions, cause the slipper to overturn and collide irregularly with its coupling. The overturning of
Externí odkaz:
https://doaj.org/article/6dcc7bb7aeee4a7084a48fba78b9ac98
Publikováno v:
Alexandria Engineering Journal, Vol 62, Iss , Pp 157-167 (2023)
The balance jack is the key component of the two-column shield hydraulic support connecting the top beam and the shield beam. The failure of the balance jack under the impact ground pressure in the fully mechanized coal mining face can easily lead to
Externí odkaz:
https://doaj.org/article/cacd5056384c417fb8496f7327f54548
Publikováno v:
Sensors, Vol 24, Iss 4, p 1246 (2024)
To address the lightweight and real-time issues of coal sorting detection, an intelligent detection method for coal and gangue, Our-v8, was proposed based on improved YOLOv8. Images of coal and gangue with different densities under two diverse lighti
Externí odkaz:
https://doaj.org/article/78d82184f0ed47cf835286fe07d4a7cf