Class #1Introductions & Fluid Power FundamentalsME 4232:FLUID POWER CONTROLS LAB2Professor: Jim Van de Ven• Research in Energy Conversion & Storage3Introductions• TAs: Paul HilsenQianrong Huang Biswaranjan Mohanty• Active Learning:“Tell me and I’ll forget;show me and I may remember;involve me and I’ll understand.” (Confucius)4Why Use Active Learning?• Research shows it is effective!Figure from: Smith, Karl A. et al., “Pedagogies of Engagement: Classroom-Based Practices,” Journal of Engineering Education, Jan 2005.5Class Agenda• Introductions• Fluid Power Introduction• Syllabus• Fluid Power Fundamentals• Least Squares Fitting• Summer Opportunities• Course Goals6Peer Introductions• Name Cards• Meet Neighbor – Groups of 2–Name– Where they are from– Something interesting about them• Introduce Neighbor to the Class7Fluid Power Introduction1 N100 N weightPower source(pump)Transmission(hoses, pipes carrying fluid)Actuator(cylinder, hydraulic motor)Bramah press (1795)Control units(valves)8Fluid Power Applications• Automotive• Aerospace• Construction industry• Lawn and garden• Agriculture• Robotics– Rescue• Biomedical• Mechanical testing– components / materials–structure • Manufacturing– steel– injection molding9Applications:Testing Equipment10Fluid Power Introduction• Video: – Fluid Power: A Force for Change11Advantages / Disadvantages / ChallengesAdvantages:• Power/Force Density– Hydraulic vs. Electric• Precise Control• Flexibility• Robust• Low-cost Disadvantages:• Leakage• Non-linear• Fire Hazard• Contamination• EfficiencyChallenges:• Compact Energy Storage• Compact Power Sources• Efficiency• Noise / Vibration• LeakageBoth motors produce 1200 lb‐ft torque at 400 RPM. 12Local Perspective• Local fluid power companies– Components:• Eaton Corporation, Eden Prairie• Sauer-Danfoss, Minneapolis• Continental Hydraulics, Savage • Parker Hannifin, Golden Valley•… – Systems:• MTS Systems, Eden Prairie• Toro Company, Bloomington• Caterpillar Paving•….Center for Compact and Efficient Fluid Power@ University of Minnesotaa NSF Funded Engineering Research Centerhttp://www.ccefp.org/13Syllabus + Course Site• http://www.me.umn.edu/courses/me4232• Website will be continually updated• *the schedule and topics will change without notice14Lab Report Format• Introduction: What you are trying to find out and why• Methods: Explain how the question is answered• Results: Results of the experiment• Discussion: Explain and Interpret your results15Fluid Power Fundamentals16Needle Valve)(2210PPACQd17Fluid Power Summer Opportunities• REU – Research Experience for Undergraduates– Fluid Power Research in Academic Lab– Georgia Tech, University of Illinois in Urbana-Champaign, University of Minnesota, Milwaukee School of Engineering, North Carolina A&T State University, Purdue University, and Vanderbilt University• Fluid Power Scholars Program– Paid Internship w/ Training Program– Caterpillar, John Deere, Sun Hydraulics, CNH and Eaton Corporation– http://www.ccefp.org/get-involved/students/fluid-power-scholars-program18Feedback – 2 minute writing• ½ Sheet of Paper• No Names• What are your goals for this