Dr. Monika IvantysynovaMAHA Professor Fluid Power SystemsDesign and Modeling of Fluid Power SystemsME 597/ABE 591 - Lecture 13MAHA Professor Fluid Power SystemsMAHA Fluid Power Research CenterPurdue UniversitySICFP’05, June 1-3, 2005, Linköping Displacement Controlled SystemsModelling of loss behaviour- Secundary controlled actuator© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE 59122SICFP’05, June 1-3, 2005, Linköping Requires constant pressure supplySecondary controlled actuatorDisplacement Controlled Rotary DriveConstant Pressure NetExcellent Dynamic BehaviourSecondary Controlled Drivep0QAQBAcSxrMF =iziAKiSxFRMϕβcoscos12⋅⋅=∑=© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE 59139UxUUControllerLow Power LosspApBQAQBAφxQLiFSICFP’05, June 1-3, 2005, Linköping Examples - High Lift SystemFlap Power Control UnitSecondary controlled actuatorCnUxSecondary controlled actuator© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE 5914Flaps Flaps DGGPOBPOBEMUCUnC10SICFP’05, June 1-3, 2005, Linköping Secondary controlled actuator© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE 5915© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE 59126SICFP’05, June 1-3, 2005, Linköping Hydraulic actuator principlesEMPBW2EHA -VPEConstant Pressure NetDisplacement Controlled Actuator1© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE 5916EM4EHA -VSMPBWEEConstant Pressure NetDisplacement Controlled Actuator326SICFP’05, June 1-3, 2005, Linköping Proportional valveServovalveLS- valveHydraulic actuator principles© Dr. Monika IvantysynovaDesign and Modeling of Fluid PowerSystems, ME 597/ABE