Friction Tester

1
Friction Tester
Sponsor Contacts James Salomon James
Fairweather
December 4, 2000
Senior Design Project Team 37
Faculty Advisors Prof. Wood ME Prof. Koenig
ME Prof Bansal EE
Gary Haynes ME Brian Tenedine ME Dinkar
Mehrotra EE Pete Ratajczak EE Dave Wallace EE
2
Overview
School of Engineering
School of Engineering
School of Engineering

• Problem Definition
• Budget
• Problems and Generated Concepts
• Immediate and Intercession Plans
• Risks
• Data
• Gantt Chart
• Conclusion

3
Problem Definition
School of Engineering
School of Engineering

• To design a device to determine dynamic
  coefficients of friction (COF) between paper and
  paper handling materials, i.e. isoprene driving
  belts and rollers

4
Budget
School of Engineering
School of Engineering

• Matlab card 330
• Load cells and hardware 200
• Motor and controls 400
• Bearing and raw materials 200
• Drive train mechanism pending
• Computer and Matlab license from P.B.

5
Problems
School of Engineering
School of Engineering

• Measuring normal force while top roller spins
  freely
• Accommodating wide range of diameters of bottom
  roller
• Pulling test sample at consistent speeds and angle

6
Generated Concepts
School of Engineering
School of Engineering

• Load Cell placement within track of roller or
  placed above roller set up
• Set screw to apply downward force to top roller
  shaft, causing known normal force
• Sliding top roller and set up to accommodate
  varying bottom roller diameters

7
Roller Setup
School of Engineering
School of Engineering
8
Generated Concepts (cont.)
School of Engineering
School of Engineering

• Driving mechanism with lead screw
• Gear box to transmit torque from DC motor

9
Immediate Plans
School of Engineering
School of Engineering

• Finish CAD drawings
• Show final design to Pitney Bowes
• Fabricate top roller assembly in machine shop

10
Intercession Plans
School of Engineering
School of Engineering

• Utilize Mechanical Advantage for tolerances
• Order parts and materials
• Assemble and test prototype
• Learn to use data acquisition card

11
Preliminary Data
School of Engineering
Schol of Engineering
School of Engineering
12
Gantt Chart
13
Risks
School of Engineering
School of Engineering

• Number of parameters that may be effecting
  friction readings temperature, velocity, contact
  area
• Time for project completion

14
Conclusion
School of Engineering
Schol of Engineering
School of Engineering

• Projected intersession progress
• Outlined tasks to be completed prior to end of
  semester
• Explained prototype sample tests

15
Questions
School of Engineering
Schol of Engineering
School of Engineering

• Ideas
• Suggestions
• THANK YOU FOR YOUR TIME