scholarly journals DUST DEPOSITION INTENSITY METHOD AND CONTROL SYSTEM DEVELOPMENT IN ORDER TO INCREASE the UNDERGROUND COAL MINE OPENINGS DUST EXPLOSION SAFETY

Author(s):  
Ya.S. Voroshilov ◽  
◽  
D. A. Trubitsyna ◽  
Author(s):  
Deng-yu Zhao ◽  
Xing-ping Lai ◽  
Chang-fa Ji ◽  
Hong-jun Xi ◽  
Zhang Bo ◽  
...  

2009 ◽  
Vol 34 (4) ◽  
pp. 1638-1646 ◽  
Author(s):  
E.M. Stewart ◽  
A.E. Lutz ◽  
S. Schoenung ◽  
M. Chiesa ◽  
J.O. Keller ◽  
...  

2013 ◽  
Vol 401-403 ◽  
pp. 1005-1009
Author(s):  
Zheng Tao Yan ◽  
Shao Chun Ding

Multi-exciter vibration test control system is the core of the multiple shaker vibration test, and multi-exciter vibration test control technology has become the hot point of vibration test field. Based on coherence principles, the coherence of two exciters control system was tested, the introduction of noise signal reduces the control coherence between the response spectrum and partial coherence between response and the corresponding drive signal. By means of increasing the coherence between drive signals, the control coherence between the response spectrum can be raised and control performance of system can be Improved. The above means could provide technical support for multi-exciter vibration test system development.


2011 ◽  
Vol 188 ◽  
pp. 236-240
Author(s):  
Cong Ling Zhu ◽  
Wei Zhu Jin ◽  
D.R. Ci ◽  
Zhi Gang Ding ◽  
S.T. Wu

Measurement and control system is the key equipment for testing and analyzing of the dynamic characteristics for a nonlinear absorber.It is the necessary means of accomplishing to design the rationalization of the nonlinear absorber. This article has conducted the detailed research in the new development of absorber test equipment to the desing of system structure, The constituent of software system, and The process design, and The development of the computer program based on virtual techniques. Debugging and running this software system have shown that the precision and reliability of it have been proved.


2012 ◽  
Vol 476-478 ◽  
pp. 2613-2616
Author(s):  
Guang Zhen Cheng ◽  
Hong Fei Lin ◽  
Yun Ting Zheng

This paper will introduce the application status of the wind door of the underground coal mine, the structure and composition, the working principle, the hydraulic system, and the electrical control system of the automatic wind door which is controlled by PLC. This paper will focus on the design of the programmable controller program and show the ladder diagram of the corresponding program and the outer way of wiring.


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