MAGNETOSTRICTIVE MAGNETOSTRICTIVE PUMPPUMPENME 444ENME 444

UMBC Department of Mechanical EngineeringUMBC Department of Mechanical Engineering

Faculty Sponsor: Dr. AnjanappaFaculty Sponsor: Dr. AnjanappaFaculty Advisor: Dr. AssakkafFaculty Advisor: Dr. Assakkaf

Aaron CaprarolaAaron CaprarolaCharles SteinertCharles Steinert

Danny BhattiDanny BhattiDave OhlerDave Ohler

December 7, 2006December 7, 2006

ABSTRACTABSTRACT

Design and development of a high speed Design and development of a high speed and precision magnetostrictive fluid pumpand precision magnetostrictive fluid pump

Design a pump operating at up to 10,000 Design a pump operating at up to 10,000 Hz that functions using magnetostrictive Hz that functions using magnetostrictive properties of terfenol-d. properties of terfenol-d.

Large volumes are enabled by the high Large volumes are enabled by the high frequency displacement frequency displacement

Summarize accomplishments!!!!Summarize accomplishments!!!!

INTRODUCTIONINTRODUCTION

What is magnetostriction?What is magnetostriction?Ferromagnetic materials displace in proportion to Ferromagnetic materials displace in proportion to

magnetic fieldmagnetic fieldCauses ‘hum’ around electrical equipmentCauses ‘hum’ around electrical equipmentRegular metals have a strain around 10^-6Regular metals have a strain around 10^-6High performance materials (like terfenol-d) have High performance materials (like terfenol-d) have

strain around 10^-3strain around 10^-3We can use this displacement to pump fluidWe can use this displacement to pump fluid

INTRODUCTIONINTRODUCTION

Boundaries:Boundaries:Resolution of 10Resolution of 10LLOperating temperatures: 23-27°COperating temperatures: 23-27°CMax. dispensing speed: 100Max. dispensing speed: 100L/msL/msFrequencies up to 10KHzFrequencies up to 10KHzSupply fluid: Gravity fed reservoirSupply fluid: Gravity fed reservoirDispensing volume: 10Dispensing volume: 10L – 100mLL – 100mL

PLANNINGPLANNING

Tasks:Tasks:Market ResearchMarket ResearchDesign Magnetostrictive PumpDesign Magnetostrictive PumpDesign Pumping MechanismDesign Pumping MechanismDesign Control systemDesign Control systemManufacturing Process/CAD Drawings Manufacturing Process/CAD Drawings

PLANNINGPLANNING

Gantt Chart/Schedule:Gantt Chart/Schedule:

1 2 3 4 5 6 7 8 9 10 11 12Market Research

Design Magnetostrictive PortionDesign Pumping Mechanism

Design Control SystemManufacturing Process/CAD Drawings

ActivitiesWeek Number

PLANNINGPLANNING

Circuit Diagram/Critical Path:Circuit Diagram/Critical Path:

PLANNINGPLANNING

Deliverables:Deliverables:DesignDesignManufacturing DrawingsManufacturing DrawingsReferencesReferences

PLANNINGPLANNING

Time EstimateTime Estimate

A = Constant as a function of company sizeA = Constant as a function of company sizePC = Project ComplexityPC = Project ComplexityD = Project DifficultyD = Project Difficulty

J = Level in Function DiagramJ = Level in Function DiagramF = Number of functions at a given levelF = Number of functions at a given level

85.**)( DPCAHoursTime

FjPC *

PLANNINGPLANNING

Time Estimate of 105 hoursTime Estimate of 105 hours

Statistical Time Estimate of 108 hoursStatistical Time Estimate of 108 hours

Pump Liquid

Pump for a specific Amount of Time

Pump at a preciseFlow rate

6

4 PmOTime

DESIGNDESIGN

DESIGNDESIGN

DESIGNDESIGN

DESIGNDESIGN

DESIGNDESIGN

IMPACT STATEMENTIMPACT STATEMENT

Dispensing accurately metered quantities Dispensing accurately metered quantities of fluid is critical for applications in the of fluid is critical for applications in the area of pharmaceutical, biotechnology and area of pharmaceutical, biotechnology and aerospace applications.aerospace applications.

Small quantities of fluid at high Small quantities of fluid at high frequencies are most suitable for Bio frequencies are most suitable for Bio MEMS devices.MEMS devices.

CONCLUSIONCONCLUSION

REFERENCESREFERENCES

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