Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Songyong LIU"'
Constraint optimization of shearer cutting path based on B-spline curve fitting and mayfly algorithm
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 269-279 (2024)
In order to achieve the intelligent height adjustment control of the shearer, the key techniques are the coal-rock interface recognition, cutting path optimization, and shearer height adjustment control. Although the coal-rock interface is accurately
Externí odkaz:
https://doaj.org/article/eb2f633f62d440f8a81f8cb97416d68a
Publikováno v:
Meitan kexue jishu, Vol 51, Iss S2, Pp 229-239 (2023)
With the gradual increase in the depth of coal resource extraction in our country, geological conditions and surrounding rock environment are becoming increasingly complex. The degree of water damage, gas and other disasters faced during excavation i
Externí odkaz:
https://doaj.org/article/b09cfa4594bf4e6bb4ba4d08108c86c7
Publikováno v:
Meitan xuebao, Vol 48, Iss 6, Pp 2564-2578 (2023)
Aiming at the problems of poor visualization and low reliability of roadheader operation data, a multi-information monitoring system based on multi-sensor distribution is proposed, and the overall framework of the system is designed to realize the re
Externí odkaz:
https://doaj.org/article/131b034e6718442393dc65cf32a32b76
Publikováno v:
IEEE Access, Vol 10, Pp 104555-104566 (2022)
As the working efficiency and life span of the shovel plate of a roadheader directly influence its performance, optimization of the shovel-plate parameters is crucial. For optimizing the shovel-plate parameters, the variations in the loading capacity
Externí odkaz:
https://doaj.org/article/aec18680b77c45c5b862a13953a21d45
Publikováno v:
IEEE Access, Vol 8, Pp 56480-56490 (2020)
The safety and efficiency of hard rock roadway excavation are the two sides of a coin limiting the implementation of roadway construction. It is an effective way to improve the performance in hard rock tunneling to effectively release the internal st
Externí odkaz:
https://doaj.org/article/ed58c96129b2421684da8146e774f88d
Publikováno v:
Advances in Mechanical Engineering, Vol 13 (2021)
This paper presents a novel double-direction inchworm in-pipe robot, called the Cam-Linkage Robot (CLR), used to carry sensors and instruments to perform inspection and cleaning jobs inside pipelines. The prototype has been developed to improve the d
Externí odkaz:
https://doaj.org/article/04ce4c7897f34386b6372ff817b5e2cc
Publikováno v:
IEEE Access, Vol 7, Pp 86054-86063 (2019)
As an important equipment for wellbore construction, the raise boring machine (RBM) has been widely used in subway tunnels and mine construction projects. Its tipped hob cutter for rock breaking is directly related to the cost, safety, and overall pe
Externí odkaz:
https://doaj.org/article/12559c5f244b4b118a03bfed0a2c032c
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
Incipient fault detection and identification (IFDI) of cutting arms is a crucial guarantee for the smooth operation of a roadheader. However, the shortage of fault samples restricts the application of the fault diagnosis technique, and the data analy
Externí odkaz:
https://doaj.org/article/bc1adadc8db645f2ad387bb7381ff2d6
Publikováno v:
Shock and Vibration, Vol 2019 (2019)
In this work, a numerical model of rock breaking under hole assistance was established based on the finite element method (FEM) coupling with smoothed particle hydrodynamics (SPH) to reveal rock-breaking mechanisms and analyze the reasons for crack f
Externí odkaz:
https://doaj.org/article/e6dd5d0b5a4f4b0d8fb8f722f804359e
Publikováno v:
Shock and Vibration, Vol 2017 (2017)
In the rock drilling progress, the resistant force results in tools failure and the low drilling efficiency; thus, it is necessary to reduce the tools failure and enhance the drilling efficiency. In this paper, different configuration modes of drilli
Externí odkaz:
https://doaj.org/article/04b84c3385fd4b1e9fdaf7d16670108a