Friction Tester

1
Friction Tester
Sponsor Contacts James Salomon James
Fairweather
October 25, 2000
Senior Design Project Team 37
Faculty Advisors Prof. Wood ME Prof. Koenig
ME Prof Bansal EE
Gary Haynes ME Dinkar Mehrotra EE Pete
Ratajczak EE Brian Tenedine ME Dave Wallace EE
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Overview
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School of Engineering

• Background
• Problem Definition
• Constraints
• Performance Metrics
• Risks
• Approach
• Future Steps
• Conclusion
• Gantt Chart

3
Background
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School of Engineering

• Pitney Bowes is a world wide company conducting
  business in over 118 countries
• Pitney Bowes offers
• Mailing Systems
• Management Services
• Office Equipment
• Financial Services

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Background (cont.)
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School of Engineering

• Mail processing units operate on friction
  differentials
• Isoprene drive belts
• Already have a machine for testing paper to paper
  coefficients

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Problem Definition
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School of Engineering

• To design a device to determine friction
  coefficients between paper and paper handling
  materials

6
School of Engineering
School of Engineering
Constraints

• Overall mechanism size less than 2 ft. by 4 ft.
• Test speeds of 0.1 to 10 inches per second
• Interchangeable rollers to test different belts
• Incorporate data acquisition system
• Measure and record humidity and temperature
• Test specimen 250 mm by 70 mm

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Performance Metrics
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School of Engineering

• Repeatable results regardless of user
• Results having accuracy within 3s
• Total cost should be less than five thousand
  dollars
• Completion of project by May 2001

8
Risks
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School of Engineering

• Cost of CPU, load cells, materials, data
  acquisition card, motor and drive system
• Number of parameters that may be affecting
  friction readings
• Time for completion

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Approach
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School of Engineering

• Interdisciplinary between Mechanical and
  Electrical Engineering Departments
• ME focus will be on material selection, design
  and construction of rollers, media loading
  device, pulling armature and driving mechanism
• EE concentration will be on the data acquisition,
  computation, output and motor speed regulation

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Future Steps
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School of Engineering

• Brainstorm more ideas
• Evaluate feasibility of ideas
• Obtain hardware

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Conclusion
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School of Engineering

• Currently Pitney Bowes has a machine that does
  not fit their needs
• Need to measure paper to isoprene coefficients of
  friction
• Tester will contain load cells, data acquisition
  and PC

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Questions
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School of Engineering

• Ideas
• Suggestions
• THANK YOU