Innovation in Fluid Power Institute for Fluid Power Drives and Controls Institut für fluidtechnische Antriebe und Steuerungen
RWTH Aachen University Facts and Figures Established in 1870 9 faculties, 260 institutes (55 in mech. engineering) 9,191 employees (538 professors) 42,298 students (12,050 in mech. engineering) Budget: 839.5 Mio. 2 of 32
Institute for Fluid Power Drives and Controls Testing facilities of 1300 m² including: - More than 50 test rigs for hydraulic and pneumatic components - 6 machine beds on isolated foundation - 5 isolated test chambers with machine beds - Anechoic room on isolated foundation, 6.5 8 m², 90/200 kw with energy recovery - Climatic test chamber measuring 4.7 3.5 3 m³, -70 C to +70 C, - Test rigs for ageing of hydraulic fluids and components 25 scientific staff members working in various fields of fluid power applications Qualification of young post graduate engineers, students and apprentices Competence in simulation and special test equipment for hydrostatic machines 3 of 32
Institute for Fluid Power Drives and Controls Testing Technology facilities Transfer of 1300 m² including: - More than 50 test rigs for hydraulic and pneumatic components - Fundamentals of Fluid Power 6 machine beds on isolated foundation - Servohydraulics 5 isolated test chambers with machine beds - Fluid power technology for mobile application Anechoic room on isolated foundation, - Simulation of Fluid Power Systems 6.5 8 m, 90/200 kw with energy recovery - Lubricants and pressure media Climatic test chamber measuring - Design of fluid power machines and 4.7 3.5 3 m, -70 C to +70 C, components - Test rigs for ageing of hydraulic fluids and components - Industrial conferences - International conference on Fluid Power Lectures and courses Conferences 22 scientific staff members working in various fields of fluid power applications Qualification of young post graduate engineers, students and apprentices Competence in simulation and special test equipment for hydrostatic machines 4 of 32
Personnel Structure Research groups 25 Technic-administrative departments 22 Aug 2015 5 of 32
Budget 6 of 32
References 7 of 32
Research Groups 8 of 32
Tribology and Fluid Analysis Main research Investigation and determination of fluid properties and fluid ageing Excellence cluster TMFB (Tailor-Made Fuels from Biomass) Sealing technology Equipment: Surface measuring room, oil laboratory Software: ANSYS, COSMO-RS, FIRST, in-house developed tribosimulation tools 9 of 32
Tribology and Fluid Analysis Main research Investigation and determination of fluid properties and fluid ageing Viscosity, acid number, water content, particle content, pourpoint, foaming characteristics Excellence cluster TMFB (Tailor-Made Fuels from Biomass) Sealing technology Prediction of oil ageing based on a mathematical description 10 of 32
Tribology and Fluid Analysis Main research Investigation and determination of fluid properties and fluid ageing Investigation of viscosity and lubricity of fuels Excellence cluster TMFB (Tailor-Made Fuels from Biomass) Molecular description of viscosity and lubricity Sealing technology Measurement of temperature- and pressure-dependent viscosity 11 of 32
Tribology and Fluid Analysis Main research Investigation and determination of fluid properties and fluid ageing Friction measurement at high velocity Excellence cluster TMFB (Tailor-Made Fuels from Biomass) Sealing technology Immersion tests to determine chemical interactions between fluid and sealing material 12 of 32
Pump and Motor Technology Optimization of hydrostatic machines Fundamental investigations using simulation tools Hydrostatic transmission for wind energy application Current fields of research Equipment - Test facilities for component tests of hydraulic pumps - Measurement technology designed for hydraulic applications Software - Ansys, MSC Adams, DSHplus, PumpLinx - In-house developed simulation tools 13 of 32
Pump and Motor Technology Optimization of hydrostatic machines CFD-simulation of flow channels of axial piston machines Fundamental investigations using simulation tools Hydrostatic transmission for wind energy application Simulation of the lubricating film focused on pistonbushing contact Current fields of research Druck [bar] Druckverläufe bei n=2000 min-1, Kennfeld: boc0118f 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Druck HD2 Druck HD1 Zellendruck A ND A HD1 A HD2 V Zelle 0 0 30 60 90 120 150 180 210 240 270 300 330 360 Druckschwankungsamplitude HD1: 2.15 bar Druckschwankungsamplitude HD2: 23.87 bar Maximaler Zellendruck: 627.14 bar Fläche [mm²] Volumen [mm³] Drehwinkel Außenrad [ ] 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 1750 1500 1250 1000 750 500 250 0 Simulation of the commutation of pumps using DSHplus 14 of 32
Pump and Motor Technology Optimization of hydrostatic machines generator 1 Fundamental investigations using simulation tools generator 2 Hydrostatic transmission for wind energy application Current fields of research 15 of 32
Pump and Motor Technology Optimization of hydrostatic machines Fundamental investigations using simulation tools Hydrostatic transmission for wind energy application Axial piston pump with coated pistons (Collaborative Research Centre 442) Radax novel design approach for radial piston machines Current fields of research Investigation of churning losses in axial piston machines using CFD 16 of 32
System and Control Technology Approach Analysis and optimisation Efficient and compact systems Condition monitoring 17 of 32
System and Control Technology Approach Analysis and optimisation Efficient and compact systems Gang gear 1 Gang gear 2 Gang gear 3 Condition monitoring Zugkraft Traction F F Zug trac Traction F trac Velocity v Traction F trac Traction F trac Velocity v G g 1 G g 2 Gang gear 3 Gang gear 4 gear efficiency Velocity v Velocity v 18 of 32
System and Control Technology Approach Self energising electro hydraulic brake Analysis and optimisation Efficient and compact systems Condition monitoring Optimisation of controller and design Validation of simulation results on test bench Improvement of hydrostatic transmissions for ocean energy 19 of 32
System and Control Technology Approach Analysis and optimisation master display error diagnosis Efficient and compact systems control actuator valve spool drive Condition monitoring other devices measurement data sensors formatting interpretation HMI temperature humidity permittivity conductivity viscosity particle number state definitions rule base training data 20 of 32
Valves and Mechatronics Main research Valve development for circuit breaker drives Valves & Mechatronics Short-time ageing test for hydraulic valves Actuation Fluid mechanics Flow resistance Mechanics Electro mechanics Flow forces Equipment - Valve test rig - Ageing test rig Equipment - Ansys CFX, ICEM CFD, Flux 3, DSHplus 21 of 32
Valves and Mechatronics Main research Valve development for circuit breaker drives Short-time ageing test for hydraulic valves Valve development Leakage investigation 22 of 32
Valves and Mechatronics Main research Valve development for circuit breaker drives Short-time ageing test for hydraulic valves Stirrer Particle reservoir Heat exchanger Membrane pump Filters Main reservoir Valve manifold Flow sensors Main pump Wear dependent flow rate changes 23 of 32
Pneumatics Main research Servopneumatic Aachen-IFAS-Hand Analytic determination of pneumatic seal friction Handling devices Equipment - Pneumatic laboratory - Flow measurement test rig - Rapid characterization of pneumatic components 24 of 32
Pneumatics Main research Servopneumatic Aachen-IFAS-Hand: Electromagnetic commutation valve Analytic determination of pneumatic seal friction Target application Handling devices Functional principle Prototype testing Magnetic simulation 25 of 32
Pneumatics Main research Real system Servopneumatic Aachen-IFAS-Hand Analytic determination of pneumatic seal friction Test rig / Simulation Characteristic diagrams / Correlations Handling devices System simulation Friction law 26 of 32
Pneumatics Main research Servopneumatic Aachen-IFAS-Hand S. Gorb, MPI for Metal Research, Stuttgart Analytic determination of pneumatic seal friction Handling devices 27 of 32
Non-profit association for the advancement of fluid power technology Englisch Technology transfer (e.g. organization of conferences) Promotion of students (e.g. study trips to companies) Promotion of research (e.g. purchase of equipment) Technical literature 275 members (41 company members) 28 of 32
Non-profit association for the advancement of fluid power technology Englisch Technology transfer (e.g. organization of conferences) Promotion of students (e.g. study trips to companies) Promotion of research (e.g. purchase of equipment) Technical literature 275 members (41 company members) 29 of 32
Non-profit association for the advancement of fluid power technology Englisch Technology transfer (e.g. organization of conferences) Promotion of students (e.g. study trips to companies) Promotion of research (e.g. purchase of equipment) Technical literature 275 members (41 company members) 30 of 32
Non-profit association for the advancement of fluid power technology Englisch Technology transfer (e.g. organization of conferences) Promotion of students (e.g. study trips to companies) Promotion of research (e.g. purchase of equipment) Technical literature 275 members (41 company members) 31 of 32
Thank you for your attention. Questions, Suggestions?