isu project
TRANSCRIPT
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ISU Project
Rock DrillBy Shin Joong Hun, Wei Xin and Park Chanik
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What is the rock drill?
• It’s a machine with a pointed
end for making holes.
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How does the rock drill work?
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The mechanical vibration
equation
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Movement of Hammer
• Generally the hammer of the rock drill moves 50~120
hertz, which means it finishes 50 to 120 cycles of
movement in a second.
• We set the cycle is 50,
and the amplitude is 0.2 cm.
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Key Features & Graph for
Movement of Hammer
•
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Digging Depth
• The Rock Drill digs the ground about 0.6cm in a second
• However, as time goes, the depth of digging decrease
because the ground become harder as it goes deeper
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Key Features for
Digging Depth
•
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Graph for
Digging
Depth
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Key Features for
Combined Function
•
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Graph for Rock Drill
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With this graph…
• We can find how deep we can dig with the rock drill for a
previous time
• We can find the position of the Hammer of the drill at a
previous time
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Thank you !