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Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
Isu project
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Isu project

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Transcript

  • 1. ISU ProjectRock DrillBy Shin Joong Hun, Wei Xin and Park Chanik
  • 2. What is the rock drill?• It’s a machine with a pointedend for making holes.
  • 3. How does the rock drill work?
  • 4. The mechanical vibrationequation•
  • 5. 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.
  • 6. Key Features & Graph forMovement of Hammer•
  • 7. 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
  • 8. Key Features forDigging Depth•
  • 9. Graph forDiggingDepth
  • 10. Key Features forCombined Function•
  • 11. Graph for Rock Drill
  • 12. 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
  • 13. Thank you !

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