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- W1965445552 abstract "Through the condition analysis of the drill rod during the mining horizontal drilling for gas drainage, the finite element model of the drill rod lateral vibration is established. The drill rod lateral vibration is related to the diameter and length of the drill rod. With the increase of the diameter of the drill rod, the natural frequency of the lateral vibration of the drill rod increases constantly. The increasing amplitude of the natural frequency at the larger diameter of the drill rod is larger than that at the smaller diameter. When the drill rod is longer, the natural frequency of the lateral vibration of the drill rod is lower. From the modal images of the drill rod, the lateral vibration of the drill rod is similar to the sine curve. During the horizontal drilling in coal seam, the drill rod contact and impact with the hole wall which will bring about the fatigue fault of the drill rod and the collapse of the hole wall." @default.
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- W1965445552 date "2014-10-01" @default.
- W1965445552 modified "2023-09-27" @default.
- W1965445552 title "Drill Rod Lateral Vibration Mechanics during Mining Horizontal Drilling for Gas Drainage" @default.
- W1965445552 cites W2491665495 @default.
- W1965445552 doi "https://doi.org/10.4028/www.scientific.net/amr.1027.302" @default.
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