projemclinko

projemclinko - 16.810 Team M4 16.810 Optimizing Roller...

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16.810: Team M4 16.810: Team M4 Optimizing Roller Assembly Optimizing Roller Assembly IAP 2007 IAP 2007 Ryan McLinko Ryan McLinko Carolyn O Carolyn O Brien Brien
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• Roller assembly moves climber up ribbon • Rollers, plates, and sidebars all have extra mass • Purpose – Less power needed to climb – Increased score Motivation Motivation
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• Minimize climber weight • Minimize climber cost • Minimize time to attach climber to ribbon – Must be < 4 min • Maintain von Mises Factor of Safety > 2 Requirements Requirements
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• Climber must survive a 2 m drop test • Climber must lift own weight • Average speed > 2 m/s • Material unaffected by 5.8 GHz microwaves • Climber unaffected by water • Climber must resist 11.5 mph winds Constraints Constraints
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Initial Sketch Initial Sketch
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• Initial design was given • Holes placed in strategic locations • Refined with FEA software Design Choice Design Choice
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CAD Model: Side Plate CAD Model: Side Plate
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CAD Model: Side Bar CAD Model: Side Bar
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CAD Model: Drive Roller CAD Model: Drive Roller
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CAD Model: Guide Roller CAD Model: Guide Roller
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FEA Analysis: Side Plate Left FEA Analysis: Side Plate Left Forces Forces FOS FOS Displacement Displacement min: 20 min: 20 max: 5.8e max: 5.8e - - 5m 5m
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FEA Analysis: Side Plate Right FEA Analysis: Side Plate Right Forces Forces FOS FOS Displacement Displacement min: 17 min: 17 max: 6.1e max: 6.1e - - 5m 5m
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projemclinko - 16.810 Team M4 16.810 Optimizing Roller...

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