PowerPoint

5th Team - EHA20081834 Yooseok JeongG20140355 Hou Chengkun20081800 Seo-Hyun Sohn20081830 Won Jang20081850 Yong-Gyu HwangDesigning and Building an Electric Hydraulic Actuator Presented by EHA team1I'm EHA team member . I will start the presentation. this is team member.

Contents1. Motivation & Objective

CylinderPosition SensorMotor & PumpShowing how to workData analysisFinal assessment2. Building an EHA

Selecting Parts of EHAAssembly DrawingDesigning a Control Circuit3. Conclusion

Introducing a PrototypeFinal EvaluationPresented by EHA team2Now i will show you the context. At first, I will tell you why we not choose the LVDT and then i will introduce the LVDT and linear scale to you. At last, you will see some examples of our choice

General Hydraulic SYSElectric Hydraulic SYS (Actuator)Motivation & ObjectiveProblemsPipe oil-leakageAccuracySizeEfficiencyImprovementSolutions for the problemsReduce required electricityMotivation

Presented by EHA team3

(EHA)Motor, Pump, and CylinderMotivation & Objective

Research of EHA in Korea is in beginning phaseNo domestic companies sell EHAProposalPURPOSE OF OUR TEAM Building an EHA that satisfies a size, accuracy, and a demand from the proposal that has the same thrustObjectivePresented by EHA teamBuilding an EHA

Hyd Cylinder ()SpecificationLoad typeSingle loadspeed8~200mm/secDiameter63mmlength300mmPressure140kgf/cm2Force4361kgfSelecting Parts of EHA - CylinderPresented by EHA team5This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

Building an EHA

LVDTLinear ScaleGot an denial message from Cylinder maker.We selected Linear Scale to use in EHA systemResolution, Measure coverage of Linear Scale is acceptableSelecting Parts of EHA Position SensorPresented by EHA team6This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

Building an EHA

Because of the price and cross-browsing design problem, we need experts help.

Expert will give us selected parts.Selecting Parts of EHA Motor and PumpPresented by EHA team7This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

Building an EHAAssembly Drawing - Main Body, Linear scale connecting part

Presented by EHA team8This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

Building an EHAAssembly Drawing - Joint, Assembled model

Presented by EHA team9This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

Building an EHAAssembly Drawing - Driving Visualization

Presented by EHA team10This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

Building an EHA

Assembly Drawing Designing a Control CircuitPresented by EHA team11This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

ConclusionIntroducing a PrototypePresented by EHA team12This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

ConclusionData AnalysisPresented by EHA team13This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

PID Gain graghConclusionData AnalysisPresented by EHA team14This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

ConclusionFinal AssessmentPresented by EHA team15This picture shows the LVDT. Because we dont use the LVDT so we shouldn't waste time on it.

History Log()Chart9/29Discuss about the topic of next presentation10/1Making plans for meeting with the RPM tech10/3Clarifying the team purpose & selecting the part specification10/5Making PPT & preparation for PPT10/7Discuss about linear scale and LVDT10/8Interview with KCC company and decide linear sacle10/10Discuss about apparatus arrangement10/11Making PPT & preparation for PPTPresented by EHA teamReferenceS. H. Park Characteristics of an Electro Hydrostatic Actuator and Application Fields 6 1 pp. 2~10 2009 3S. H. Park, A Study on Control of Electro-Hydraulic Servo System Using High Speed Solenoid Valve, Dept. of Mechanical and precision Engineering Gradate School Pusan National University, Feb, 1996., , 2005. Y. H. Park, S. H. Park EHA(Electro-Hydrostatic Actuator) Identification and control of Position Control System for Electro-Hydraulic Actuator 15 2 pp.69~77 2011 4Automatic Control Systems (9 New, Hardcover)Patent Material , 2002-081402() , 2005-325959() , 10-2011-0120657 , 10-2010-0111339 , 10-2011-0124843 , 1997-025547 , 10-2014-7004624 () , 10-2011-0054770 () , 10-2008-0089100 ()(7) , , , , , , 15 6 86 ~ 94 (8) , , , ,PID EHA (A Position Control of EHA Systems using Adaptive PID Sliding Mode Control Scheme), 17 4 120 ~ 130 (9) Min Gyu Park. Sung Hwan Park, Jong Shik Kim, Ho Gil Lee Modeling and Control and Electro Hydrostatic Actuator Systems 2009 8 pp.3003 - 3008

Presented by EHA team17Question

Presented by EHA team