Time-frequency analysis in pick cutting coal seam with small fault

DOI

10.2991/iceeecs-16.2016.212How to use a DOI?

Keywords

shearer drum; small fault; cutting experiments; time-domain analysis; frequency-domain analysis

Abstract

Based on the study of cutting theory of shearer pick-shaped cutter used in thin seams, cutting tests under different fault conditions were done by using pick on the Cutting Test Bed of the Coal and Rock. The results show that: picking Cutting Torque in the coal seam and small fault interface increases with the increase compressive strength difference between the coal seam and small fault. Meanwhile, the mean increments of the cutting torque did not change exponentially, when the thickness of full fault is twice the thickness of top fault or bottom fault in the cutting tests. Through time-domain analysis and frequency-domain analysis of cutting load, it can be seen that probability density curves of pick torque obeys normal distribution in cutting coal seams and small fault. The drum speed affects load fluctuations a lot different forms of coal and rock has some impact on the load fluctuation.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chenxu Luo
AU  - Shuangxi Jing
AU  - Xiaoyu Yang
AU  - Jinle Yuan
AU  - Changlong Du
PY  - 2016/12
DA  - 2016/12
TI  - Time-frequency analysis in pick cutting coal seam with small fault
BT  - Proceedings of the 2016 4th International Conference on Electrical & Electronics Engineering and Computer Science (ICEEECS 2016)
PB  - Atlantis Press
SP  - 1106
EP  - 1110
SN  - 2352-538X
UR  - https://doi.org/10.2991/iceeecs-16.2016.212
DO  - 10.2991/iceeecs-16.2016.212
ID  - Luo2016/12
ER  -