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Test Rig Development Group

Test Rig Development Group. Problem Background & Voice Of the Customer Project: R13301 Rochester Institute of Technology Design Project Management ( 0303.735.01 & 0304.730.01 ). R13301 Teams & Members. EP Printing Team Jonathan Erbelding & Sakif Noor Garlock Team

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Test Rig Development Group

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  1. Test Rig Development Group Problem Background & Voice Of the Customer Project: R13301 Rochester Institute of Technology Design Project Management (0303.735.01 & 0304.730.01 )

  2. R13301 Teams & Members • EP Printing Team • Jonathan Erbelding & Sakif Noor • Garlock Team • Usman Asad & Jessica Fuss • Polymer Membrane Team • Steven Lucchesi & Seaver Wrisley

  3. EP Printing Jonathan Erbelding Sakif Noor

  4. Background • Electrophotographic Printing (EP) test rig originally from Kodak • P09503 modified for improved usability and automation • LabView controls implemented for automation • Has station for major steps:Charging, Exposure, Toner, TransferFusing occurs on a different rig • Exposure step is performed with a negative. Cannot print file from computer. • Our Problem: Test pattern cannot be specified from computer

  5. EP Process (Part 1 of 2) Stepper motor to turn screw to move carriage Photoconductor carriage Screw to move carriage Negative Charging Station Exposure Station

  6. EP Process (Part 2 of 2) Transfer drum Tray for paper Transfer Station Toner Station Fusing: On one of several other rigs, heat and pressure are applied to fuse toner to paper.

  7. Stakeholder Interviews

  8. Voice of Customer - Needs • Accepts computer input to specify test pattern • Integrates into LabView software • Fits into 10"x15"x12" available space of current exposure system • Uses current stepper motor if motion is required • 1200*20±1 DPI Resolution (1200 DPI target, 600 DPI min) • Controls exposure time or intensity • Exposes a min area of the 5"x9" photoconductor • Built within budget ($2-3K) • Powered by available sources (wall outlet, current power supply)

  9. Moving Forward - Possible Solutions Xerox HiQ LED Print Head Can achieve resolutions of 1200 x 2400 dpi The LEDS selectively flash to create a pattern of dots on the photo receptor drum Laser Printing assembly Common laser printers achieve 1200 dpi Laser scans photo receptor drum as it rotates, creating the latent image

  10. Garlock Test Rig Usman Asad Jessica Fuss

  11. Initial Problem Statement • “Garlock Sealing Technologies is a global leader in fluid sealing technologies, located in Palmyra, NY. As part of their product qualification process, they perform a gasket test according to ASTM F-37, which requires testing a specific type of gasket under a specific set of conditions, in order to measure permeation and leak rate. This is a manual process, with each test taking 20 minutes, and it is done one gasket at a time. Garlock engineers are in need of an automated test rig that will allow simultaneous testing of multiple gaskets. This test rig must follow an industry standard test procedure. While Garlock currently uses ASTM F-37, they are open to other options if they would facilitation automation of the process.”

  12. Background and Motivation • What are gaskets? • What are gasket tests? • Sealability: ASTM F37 (A and B) • Gas Permeability: DIN 3535 • Creep Relaxation: ASTM F38 • Compressibility Range: ASTM F36 • Tensile Strength: ASTM D1708

  13. Stakeholders • Garlock Sealing Technologies • Wayne Evans • Product Engineer • Randel Hill • Test rig operator

  14. Existing Test Setup

  15. Customer Needs • Save the operator time • Increase accuracy and repeatability of tests • Test results should be comparable to industrial standards • Record and store data • Test large volume of gaskets for R&D purposes

  16. Refined Problem Statement • “To develop an automated test rig that saves the operator time and measures gasket leak rate with high quality, precision and accuracy.”

  17. Objective tree

  18. Functional Decomposition Tree

  19. Functional decomposition Input / Output

  20. Existing Technologies Cixi CAZ Group Corporation Cost: 6800 USD

  21. Automation of Test-Rig • Load application (up to 3000 psig) • Load / strain measurement • Flow measurement (0-1 ml/hr, at 0-30psig) • Pressure sensor • Control Valves • Level measurement • Data Acquisition • Control System

  22. Questions • Any questions about existing setup? • Any suggestions about our approach to the problem? • Any suggestions about instrumentation needs for this project?

  23. Polymer Membrane Test Rig (PMTR) Steven Lucchesi Seaver Wrisley

  24. PMTR Motivation & Background • Mission Statement: • The Mechanical and Biomedical Engineering Departments at the Rochester Institute of Technology (RIT) have developed a need for a test device capable of measuring the mechanical properties of biologically relevant materials. • Principle Needs: • Ability to run simple experiments, demonstrating non-linear stress-strain responses, creep, and stress relaxation. • More specialized needs for research.

  25. PMTR Stakeholders & Needs

  26. PMTR Goals & VOC • We have split the goals of this project into several categories: • Measured Properties • Controlled Properties • Specimen Accommodation • Interface • Ease of Use • Portability • Cost • Environmental Health & Safety • All customers have expressed similar needs with varying levels of specification.

  27. PMTR Current Technology • Currently, there is no lab equipment available for educational use in the two Biomaterials courses. • Typical tensile testers damage biomaterials at the clamping points, rendering the test invalid • Previous/Current RIT Projects: • Lowell Smoger’s Biaxial Test Rig • P06218 Bausch & Lomb Eye Membrane Indenter • Bill Spath’s ASSET machine for EAP (Electroactive Polymer) Research

  28. Transverse Plunger Linkage Box PMTR Current Technology: ASSET (Automated Smart Sensing EAP Tank ) • Preliminary design by Bill Spath • Acts like typical tensile tester in horizontal direction for in-plane loading • Indenter for out-of-plane loading EAP Transverse Plunger • Capable of being completely filled with solution • Interior would be made of biologically inert materials Environmental Tank Axial Servo Driver Figure 1: Automated Smart Sensing EAP Tank

  29. PMTR Proposed Solutions • Varying specification requirements of the individual customers led to the need for multiple test rigs. • Proposed test machines: • Biomaterials student test machine • Single-axis loading • Simple display (analog, ruler, etc.) • Lower accuracy • Manual control • Research quality test machine, incorporating ASSET concepts • Multi-axis loading • Fully automated interface (Matlab or LabView) • Closed loop control of loading, load or deflection controlled • Higher accuracy • Environmental control capabilities • Aqueous environment capabilities

  30. Questions? • What questions do you still have? • Are we lacking any important information? • Proposed solutions?

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