1. P12022: LVAD P OWER T RANSMISSION T EST R IG Erin McNally Pedro Baez Paul Parthemore Kris Stichter

2. T ABLE OF C ONTENTS Project Background Customer Needs Engineering Specs Needs vs. Specs System Architecture System Concepts System Integration Functional Decomposition Concept Creation Concept Selection Risk Assessment Work Breakdown Project Schedule

3. B ACKGROUND I NFORMATION About 5 million Americans are currently living with congestive heart failure (CHF) Heart failure contributes to about 287,000 deaths per year Current left ventricular assist devices (LVAD) require a cable connecting to the control unit through a hole in the abdomen A permanent opening through the epidermis is highly vulnerable to infection Current wireless power transmission utilizes induction which tends to cause tissue damage due to excessive heat generation SOLUTION: Transmit power wirelessly through the use of a magnetic coupler Test Rig Scope: Design and build functional test rig to analyze performance of current and future wireless power transmission devices

4. C USTOMER N EEDS

5. E NGINEERING S PECS

6. N EEDS AND S PECS R ELATION C HART

7. S YSTEM A RCHITECTURE

8. S YSTEM C ONCEPTS

9. S YSTEM I NTEGRATION WITH DEVICE TEAM 12026 12022 Responsibilities Measure internal and external temp Measure input and output power Measure generator housing torque Measure power, temp, and torque during device ramp up, steady-state operation, and ramp down Vary load on generator output Measure compressive force between motor and generator Collect data and interpret for entire operating range Measure motor and generator rpm 12026 Responsibilities Provide access points to measure motor input and generator output power Incorporate thermistors inside motor and generator housings Power device Provide housing dimensions by end of week 7 Provide ranges for power input and output by end of week 7 Provide ranges for heat generation of motor and generator by end of week 7 Provide ranges for compressive force vs. separation distance between motor and generator by end of week 7 Provide access point to measure rpm

10. F UNCTIONAL D ECOMPOSITION

11. C ONCEPT C REATION

12. C ONCEPT S CREENING M ATRIX – C OMPRESSIVE F ORCE M EASUREMENTS

13. C ONCEPT S CREENING M ATRIX – H EAT M EASUREMENTS

14. C ONCEPT S CREENING M ATRIX – H OUSING T ORQUE M EASUREMENTS

15. R ISK A SSESSMENT

16. W ORK B REAKDOWN Erin – Team Leader Manage and update schedule as needed Manage budget and budget concerns Run meetings and keep team members on track Assist with detailed design of test rig Assist with communication with 12026 Paul – Integration Engineer Determine power layout for rig Manage integration and communication with 12026 Responsible for electrical aspects of test rig Kris – Design Engineer Manage component drawings and models Responsible for mechanical aspects of test rig Manage research and pricing of components Pedro – Design Engineer Manage customer needs and specs and communication with customer Manage Edge and documentation revisions Take meeting notes and minutes Assist with detailed design of test rig

17. P ROJECT S CHEDULE