Zobrazeno 1 - 10
of 113
pro vyhledávání: '"TIAN Muqin"'
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 8, Pp 14-19 (2024)
In response to the problems of cumulative errors and inaccurate correction results in the attitude calculation method of hydraulic supports based on inertial measurement units, a fully mechanized working face hydraulic support attitude monitoring met
Externí odkaz:
https://doaj.org/article/1f320017d23c4647bf3a1120061858d7
Autor:
YANG Yongkai, ZHANG Minlong, XU Chunyu, SONG Jiancheng, TIAN Muqin, SONG Danyang, ZHANG Xiaohai, NIE Honglin
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 12, Pp 70-76 (2023)
The communication system is the channel and bridge for information transmission in the hydraulic support electro-hydraulic control system of the fully mechanized mining face. Currently, CAN bus is commonly used as the communication bus. It is suscept
Externí odkaz:
https://doaj.org/article/b3dc33ad0bdc4e5988c99c4d3d859a15
Autor:
ZHANG Xiaohai, TIAN Muqin, ZHANG Minlong, SONG Jiancheng, XU Chunyu, NIE Honglin, YANG Yongkai
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 8, Pp 30-36 (2023)
With the continuous promotion of the construction of unmanned automated fully intelligent mechanized working faces, higher technical requirements have been put forward for the automation control function of the hydraulic support electrohydraulic cont
Externí odkaz:
https://doaj.org/article/7ae1d65e92844d629f69790afc44ec90
Autor:
NIE Honglin, XU Chunyu, SONG Jiancheng, TIAN Muqin, SONG Danyang, YANG Yongkai, ZHANG Xiaohai
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 7, Pp 120-125 (2023)
Currently, research on the intrinsically safe features of intrinsically safe circuits mostly relies on the IEC spark experimental device as the experimental platform. The research only analyzes the discharge features of a single capacitor or inductan
Externí odkaz:
https://doaj.org/article/350849245a9845c08dc0be5626198e5a
Autor:
QIAO Jiawei, TIAN Muqin
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 9, Pp 69-76 (2022)
In view of the problem of centrifugal pump impeller wear, the existing research mostly concentrates on numerical simulation analysis, vibration signal analysis and wear detection of impeller wear. There are few studies on the working condition parame
Externí odkaz:
https://doaj.org/article/0686e5962894476082cc189ccfc7c25c
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 7, Pp 52-57 (2022)
At present, the shearer positioning method is based on the combination of the inertial navigation system and odometer. The method directly uses the output of the odometer to correct the shearer forward speed calculated by the inertial navigation syst
Externí odkaz:
https://doaj.org/article/8872d02f360e4850b7b9efb325f97468
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 3, Pp 77-84, 123 (2023)
Algebraic and geometric methods are commonly used to realize drilling arm positioning control of bolt drilling rig. However, there are some problems such as low efficiency, no solution, multiple solutions, or poor universality. Using particle swarm o
Externí odkaz:
https://doaj.org/article/5cde2f68edfa4d4e8b114363d4ae781b
Publikováno v:
Gong-kuang zidonghua, Vol 47, Iss 2, Pp 6-12 (2021)
In order to solve the problems of low output power, poor protection effect, and slow dynamic response speed of existing intrinsically safe power supply, a high-power intrinsically safe power supply based on fault current change rate is designed. The
Externí odkaz:
https://doaj.org/article/2622694e1fdb4589922131296839a424
Publikováno v:
Gong-kuang zidonghua, Vol 46, Iss 8, Pp 38-43 (2020)
Most of existing models and methods for research of capacitive circuit spark discharge and high-power intrinsic safety power supply only consider discharge characteristics of energy storage elements during discharge process， and do not consider inf
Externí odkaz:
https://doaj.org/article/97b242e381284f6fa82a61278d6d1db9
Publikováno v:
Gong-kuang zidonghua, Vol 46, Iss 6, Pp 12-16 (2020)
In view of problems of poor anti-interference performance, low integration and single function of common thermal resistance type isolation safety barriers, a mine multifunctional thermal resistance type isolation safety barrier was designed. The safe
Externí odkaz:
https://doaj.org/article/61c781159dff4db4affd376e7b0fb6d2