System Tribology: Friction and Sliding Systems


Academic Staff

RG System Tribology: Friction & Sliding Systems

Research Focus

The research focus is on methods and processes for the development of dry and lubricated friction systems in complex drive system solutions:

  • Modelling of tribotechnical systems
  • Explanatory models for tribological contacts
  • Computer-based simulation of tribological contacts in the overall system
  • Observance of interaction in the overall system
  • Alternative friction materials

Service Offer

We are your partner for problems requiring experimental and virtual research and validation of dry-running and lubricated friction systems.

  • Theoretical and experimental investigation in all test categories
  • Customer-specific optimised methods and processes for development, design and validation of friction systems
  • Joint development and validation of innovative products
  • Optimisation of components and systems

Equipment

We offer the following simulation and test equipment which is especially useful for probing and examining friction systems:

  • Dry friction test bench (TRP) (flyer)
    • Investigation of test pieces, clutch plates and clutch systems under load-like boundary conditions

    • Replication of powertrain stiffness and simulation of mass moments of inertia

    • Further information about the test bench can be found in the flyer which will soon be available for downloading here

  • Test module for wet clutch linings (InLine-Module) (flyer)
    • Determination of the performance limits of wet cluches under different load parameters

    • Determination of the vibration decoupling through wet-running plate packs in regulated slip opertion

  • Powertrain in the loop test bench (PLP) (flyer)
    • Investigation into how friction systems interact with the overall powertrain

    • Further information about the test bench can be found in the flyer which will soon be available for downloading here.

  • Continuous slip test bench (DSP)
    • Investigation of wet-running multi-disk clutches and brakes with simultaneous rotation of inner and outer disks

    • Investigation of switch operation as well as continuous slip operation

    • Further information about the test bench can be found in the flyer which will soon be available for downloading here.

  • Multi-slip test bench (MSP)
    • Differentiated investigation of friction pairs through the combination of three possible sliding portions: tangential slip, radial slip and spin

    • Cyclic meshing of friction contacts

    • Further information about the test bench can be found in the flyer which will soon be available for downloading here.

  • Mini-Hardware-in-the-Loop test bench (Mini-HiL) (flyer)
    • Flexible development and validation platform for e.g. simulation models and control algorithms
  • Mini-Hardware-in-the-Loop test bench (Mini-HiL2)
    • Flexible development and validation platform for e.g. simulation models and control algorithms
  • Data recording
    • Recording of measurement data up to 100 KHz by the test bench software

    • Integration of mobile data recording systems: LMS SCADAS Mobile, AFT Tornado

  • Measurement equipment
    • Laser surface velocimeter: Non-contact rotational speed measurement on all rotatory parts in the test bench

    • Particle image velocimetry (PIV): Non-contact measurement of flow fields of fluids

    • High speed thermal camera: High resolution long-wave infrared camera for non-contact temperature measurement up to 6000 images per second

    • Thermal camera: Short-wave infrared camera for non-contact temperature measurement

  • Hardware and software development environment​​
    • FE simulation of dry and lubricated tribological contacts (Abaqus)
    • FE simulation of friction systems (Abaqus)
    • CFD simulation of oil flows (Ansys)
    • Multi-body simulation of friction systems
    • One-dimensional powertrain simulation (AMESim, Simulink)
    • Coupling of simulation methods

Theses

Current theses of the research group can be found here.

Contact

Publikationsliste


Ensuring Consistency and Credibility in Cyber-Physical Systems Validation
Urbano, F. P.; Grycz, P.; Freyer, J.; Bause, K.; Bischofberger, A.; Düser, T.; Albers, A.
2024. International Dependency and Structure Modeling Conference (DSM 2024)
Optische in-situ Analyse der Schmiermittelverteilung graphitgeschmierter Wälzlager
Dewald, A.; Joerger, A.; Lagier, F.; Bischofberger, A.; Bause, K.; Albers, A.
2023. GfT Gesellschaft für Tribologie e.V. (Hg.), 64. Tribologie-Fachtagung 2023, Reibung, Schmierung und Verschleiß, Forschung und praktische Anwendungen Research and Practical Applications, Gesellschaft für Tribologie e.V. (GfT)
Schwingungsreduzierung im nasslaufenden Kupplungssystem – Gezielte Beeinflussung des tribologischen Systems
Bischofberger, A.; Bause, K.; Albers, A.
2023. Forschungsvereinigung Antriebstechnik e. V. (FVA)
Decoupling Effects in Wet-Running Multi Plate Clutches – Extended and Efficient Use in Hybrid Drive Trains
Bischofberger, A.; Bause, K.; Ott, S.; Albers, A.
2023. 16th International Conference on Engines & Vehicles, Capri, Italy, 10-14 September 2023, SAE International. doi:10.4271/2023-24-0179
Feinstaubemissionen trockenlaufender Friktionssysteme in Fahrzeugen
Sutschet, A.; Bause, K.; Bischofberger, A.; Ott, S.
2023. VDI-Fachtagung Kupplungs- und Bremssysteme für mobile und stationäre Anwendungen : Auslegung – Systemverhalten – Lösungen 24. und 25. Mai 2023, Karlsruhe, 3–18, VDI Verlag. doi:10.51202/9783181024140
Schwingungsreduzierung durch nasslaufende Lamellenkupplungen – Gezielte Auslegung des Tribosystems für einen effizienten Einsatz
Bischofberger, A.; Bause, K.; Ott, S.; Albers, A.
2023. Kupplungs- und Bremssysteme für mobile und stationäre Anwendungen : VDI-Fachtagung : Auslegung – Systemverhalten – Lösungen : 24. und 25. Mai 2023, Karlsruhe, 67–82, VDI Verlag. doi:10.51202/9783181024140-67
Feinstaubemissionen trockenlaufender Friktionssysteme in Fahrzeugen
Sutschet, A.; Bause, K.; Bischofberger, A.; Ott, S.
2023. Forschung im Ingenieurwesen, 87 (2), 521–528. doi:10.1007/s10010-023-00664-9
Untersuchung eines axialen Gleitlagers als Ausrücklager in einer Hochdrehzahlkupplung im Fahrzeugantrieb
Sutschet, A.; Bause, K.; Bischofberger, A.; Ott, S.
2022. 63. Tribologie-Fachtagung (2022), Göttingen, Germany, September 26–28, 2022
Suitability of additive manufactured PEEK Gears as a means of gear sampling for Automotive High-Speed Gear-boxes
Lagier, F.; Bischofberger, A.; Bause, K.; Ott, S.
2022. International Conference on Gears 2022, 4th International Conference on High Performance Plastic Gears 2022, 4th International Conference on Gear Production 2022 : Garching / Munich, Germany September 12 - 14, 1045–1060, VDI Verlag
Untersuchung des anwendungsnahen, dynamischen Reibverhaltens nasslaufender Lamellenkupplungen am Beispiel zweier Tribosystemvarianten
Bischofberger, A.; Bause, K.; Ott, S.; Albers, A.
2022. Tribologie und Schmierungstechnik, 69 (2), 26–39. doi:10.24053/TuS-2022-0010
Einflüsse des Tribosystems auf die Schwingungsreduzierungswirkung in nasslaufenden Lamellenkupplungen – Gestaltungsempfehlungen für eine gezielte Auslegung des Friktionssystems
Bischofberger, A.; Bause, K.; Ott, S.; Albers, A.
2022. 63. Tribologie-Fachtagung (2022), Göttingen, Germany, September 26–28, 2022
How friction modifier influences the dynamic friction behavior in wet-running clutch systems and its potential for extended use in hybrid drive trains
Bischofberger, A.; Bause, K.; Ott, S.; Albers, A.
2022. 23rd International Colloquium Tribology : Industrial and Automotive Lubrication. Ed.: A. Fatemi, expert-Verlag
Extended Abstract: Untersuchung des anwendungsnahen, dynamischen Reibverhaltens nasslaufender Lamellenkupplungen am Beispiel zweier Tribosystemvarianten
Bischofberger, A.; Bause, K.; Ott, S.; Albers, A.
2021. 62. Tribologie-Fachtagung 2021 - Reibung, Schmierung und Verschleiß : Forschung und praktische Anwendungen, 27. bis 29. September 2021, 21/1–21/5, Gesellschaft für Tribologie e.V. (GfT)
Wet clutch as an enabler of cost-efficient hybrid drive systems Decoupling as functional extension
Albers, A.; Bischofberger, A.; Ott, S.
2020. 20. Internationales Stuttgarter Symposium : Automobil- und Motorentechnik. [17. und 18. März 2020, Stuttgart]. Hrsg.: M. Bargende, 251–265, Springer Fachmedien Wiesbaden. doi:10.1007/978-3-658-29943-9_22