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Advanced Test Rig Development: Voice of the Engineer Project R13301 at Rochester Institute of Technology

This project aims to design and develop test rigs for measuring the mechanical properties of biomaterials at RIT. It includes the Biomaterials Instructional Test Rig and ASSET Test Stand, meeting the needs of professors and researchers. The project involves functional decomposition, current technology analysis, and proposed solutions. Additionally, it offers multiple senior design project options for building instructional test rigs and redesigning the ASSET system. The audience feedback is crucial for refining the project goals and timelines. Join this innovative project to contribute to cutting-edge engineering solutions.

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Advanced Test Rig Development: Voice of the Engineer Project R13301 at Rochester Institute of Technology

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  1. Test Rig Development Group Voice of the Engineer 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. Garlock Test Rig Usman Asad Jessica Fuss

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

  6. 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: • The Biomaterials professors (Drs. Lamkin-Kennard and Gaborski) need classroom equipment for student lab experiments. • Satisfied by Biomaterials Instructional Test Rig. • Bill Spath needs a research quality test machine to test ElectroactivePolymers (EAPs) in in vivo conditions for his Ph.D. work. He needs to measure voltage output as a function of loading, and force output as a function of applied voltage. • Satisfied by ASSET Test Stand.

  7. Engineering Requirements • Biomaterials student test machine • Single-axis loading • Analog display • Lower accuracy • Manual control • ASSET Test Stand • Multi-axis loading • Fully automated interface (Matlab or LabView) • Closed loop control of loading • Higher accuracy • Environmental control capabilities • Aqueous environment capabilities

  8. Functional Decomposition

  9. Functional Decomposition

  10. 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 concept

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

  12. Possible Solutions- Component Options

  13. Proposed Senior Design Projects • Biomaterials Instructional Test Rig Design & Build • Will design and build classroom test machines for the lab component of the Biomaterials courses. • Staffing: 3-5 MEs • Budget Estimate: $300 per Machine • ASSET - Biaxial Tension Tester Redesign & Build • Will redesign Lowell Smoger’s machine to have a variable x:y loading ratio (his can only apply a 1:1 ratio). • Will serve as a base for the other projects to integrate into. • Staffing: 3 MEs, 2 EEs • Budget Estimate: $2,125 (ASSET total ~ $6,500) • ASSET - Indentation Tester Design & Build • Will produce an indentation tester that will integrate into mounting provided by Biaxial Tension Tester team. • ASSET - Environmental Chamber Design & Build • Will design and build the tank itself, with environmental controls. • Will be responsible for building a Matlab or LabView control program.

  14. To be determined by MSD Committee • How many of the 12 Biomaterials Instructional Test Rigs will be built by their senior design team. • Could build one machine per design iteration. • Start dates for the 2nd and 3rd ASSET projects • Biaxial Tension Tester Redesign & Build • Indentation Tester Design & Build • Environmental Chamber Design & Build

  15. Audience Feedback • Remaining questions? • MSD student surveys are sent out during the summer. • If anyone is interested in working on either of the projects being started next Fall, enter it there.

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