Test Rig Development Group

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.