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MAGNETOSTRICTIVE PUMP

MAGNETOSTRICTIVE PUMP. ENME 444 UMBC Department of Mechanical Engineering Faculty Sponsor: Dr. Anjanappa Faculty Advisor: Dr. Assakkaf Aaron Caprarola Charles Steinert Danny Bhatti Dave Ohler December 7, 2006. ABSTRACT.

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MAGNETOSTRICTIVE PUMP

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  1. MAGNETOSTRICTIVE PUMP ENME 444 UMBC Department of Mechanical Engineering Faculty Sponsor: Dr. Anjanappa Faculty Advisor: Dr. Assakkaf Aaron Caprarola Charles Steinert Danny Bhatti Dave Ohler December 7, 2006

  2. ABSTRACT • Design and development of a high speed and precision magnetostrictive fluid pump • Design a pump operating at up to 10,000 Hz that functions using magnetostrictive properties of terfenol-d. • Large volumes are enabled by the high frequency displacement • Summarize accomplishments!!!!

  3. INTRODUCTION • What is magnetostriction? • Ferromagnetic materials displace in proportion to magnetic field • Causes ‘hum’ around electrical equipment • Regular metals have a strain around 10^-6 • High performance materials (like terfenol-d) have strain around 10^-3 • We can use this displacement to pump fluid

  4. INTRODUCTION • Boundaries: • Resolution of 10mL • Operating temperatures: 23-27°C • Max. dispensing speed: 100mL/ms • Frequencies up to 10KHz • Supply fluid: Gravity fed reservoir • Dispensing volume: 10mL – 100mL

  5. PLANNING • Tasks: • Market Research • Design Magnetostrictive Pump • Design Pumping Mechanism • Design Control system • Manufacturing Process/CAD Drawings

  6. Gantt Chart/Schedule: PLANNING

  7. PLANNING • Circuit Diagram/Critical Path:

  8. PLANNING • Deliverables: • Design • Manufacturing Drawings • References

  9. PLANNING • Time Estimate • A = Constant as a function of company size • PC = Project Complexity • D = Project Difficulty • J = Level in Function Diagram • F = Number of functions at a given level

  10. PLANNING • Time Estimate of 105 hours • Statistical Time Estimate of 108 hours Pump Liquid Pump for a specific Amount of Time Pump at a precise Flow rate

  11. DESIGN

  12. DESIGN

  13. DESIGN

  14. DESIGN

  15. DESIGN

  16. IMPACT STATEMENT • Dispensing accurately metered quantities of fluid is critical for applications in the area of pharmaceutical, biotechnology and aerospace applications. • Small quantities of fluid at high frequencies are most suitable for Bio MEMS devices.

  17. CONCLUSION

  18. REFERENCES • Mcmasters, O.D.,”Performance of Magnetostrictive TbxDz1-xFey (Terfenol-D) Transducer Elements Optimized to meet Device/Applications Requirements” • Wise, E.M.,”Magnetostriction: a new design tool”. Product Engineering, p.162-166, 1957 • Chang,C.,”Theory and Design of a Magnetostrictive Actuator,” M.S. Thesis, Clemson University, 1971 • Goodfriend, M.J. and K.M. Shoop, ‘Adaptive Characteristics of the Magnetostrictive Alloy, Terfenol-D for Active Vibration Control’,J. of Intell. Mater. Syst. And Struct., Vol.3, p.245-255, April 1992 • Minivalve Cooperation, Yellow Springs, Ohio, www.minivalve.com.

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