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sekretariatVyv3∂ipek kit edu

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Clutches and Brakes in Drive Systems

The system behaviour of clutches and brakes in drive trains is decisively determined by the interaction of the individual subsystems. Our philosophy is to carry out the research on clutches and brakes. These two components are considered as mechatronic and conventional actuator in the entire drive train system. For this reason we develop methods for predictive description and interpretation of clutch and brake assemblies with special regard to the interactions with the tribological contacts as well as the (mechatronic) characteristics of the entire system and the interaction with the operator. While doing this, we focus on all functional and constructive features that affect the integration of clutch and brake assemblies in the overall system.

Research Focus

  • Methods for optimizing the system and wear behaviour of clutch and brake systems
  • Research into clutch and brake systems for complex drive system solutions
  • Analysis, synthesis and validation of clutches and brakes including system interactions and application (human & environment) - physically, virtually or mixed modelled

 

Systems

   Development- & validation environment

  • System "(automobile) drive trains"
    • Dry-running clutches
    • Wet-running clutches
    • Brakes
  • Subsystems
    • Clutch disc
    • Multi-disc set
    • Brake disc

 

Methods

   Development- & validation methods for:

  • Experimental and simulative examination of clutch und brake systems
    under stress related boundary conditions

 

   XiL-Framework for the universal validation of technical systems:

  • New type of simulation environment
  • New type of test environment
  • Innovative drive train components and -systems

 

Processes

   Development- & validation processes:

  • Processes for the investigation of organic und alternative friction linings
    for dry/wet-running clutches und brakes
  • Processes for the evaluation of performance limits of clutch and
    brake systems
  • Processes for the investigation of the transmission- and damping behaviour
    of clutch systems
  • Processes for the investigation of the friction coefficient characteristic of
    clutch systems.
  • Processes for the identification of parameters and clutch grabbing examination for dry-running friction systems
  • Processes for the investigation of drag torque behaviours of wet-running clutch systems
  • Processes for generating links between the processes in the local friction contact and the global parameters of clutch systems

 

Equipment

  • Test benches for examination of dry/wet-running clutch systems as well as brake systems
  • Data collection
    • Measurement data logging
    • Integration of mobile data collection systems: LMS SCADAS Mobile, AFT Tornado
  • Measurement technology, among other things
    • Laser Surface Velocimeter: Non-contact rotational speed measurement on all rotational parts
    • Particle Image Velocimetry (PIV): Non-contact measurement of flow field of fluids
    • High-speed thermal camera for non-contact measurement
    • Confocal measurement systems for the optical measurement of surfaces
  • Hardware and software development environment
    • FE-simulation of dry and lubricated tribological contacts (Abaqus)
    • FE-simulation of friction systems (Abaqus)
    • CFD-simulation of oil flow (Ansys)
    • Multi-body simulation of friction systems
    • One- dimensional drive train simulation (AMESim, Simulink)
    • Connection of simulation methods

 

You can find further institute facilities here.

 

Publications within the Research Field


2017
Influencing factors on the decoupling of induced rotational oszillation by wet-running multi-plate packages in controlled slip mode.
Albers, A.; Ott, S.; Basiewicz, M.
2017. 44th Leeds Lyon - Symposium on Tribology - Tribomotion: Where Performance and motion meets friction, Lyon, France, September 4-6, 2017
Methode zur Ermittlung der zulässigen thermomechanischen Beanspruchbarkeit trockenlaufender Friktionspaarungen.
Albers, A.; Ott, S.; Basiewicz, M.; Schepanski, N.; Klotz, T.
2017. 2. VDI-Fachkonferenz Schwingungsreduzierung in mobilen Systemen 2017 : Kupplungen und Kupplungssysteme in Antrieben, Ettlingen, Germany, 17-18 May 2017, VDI-Verlag, Düsseldorf
2016
Einsatz von generativen Fertigungsverfahren zur Variation von Nutbildgeometrien in nasslaufenden Lamellenkupplungen zur Untersuchung von Schleppverlusten.
Albers, A.; Denda, C.; Basiewicz, M.; Kriegseis, J.
2016. GfT Tribologie – Fachtagung 2016, 26. – 28. September 2016, Göttingen, Deutschland
2011
Development and validation of lubricated multi-disc clutch systems with advanced ceramics.
Albers, A.; Bernhardt, J.; Ott, S.
2011. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 225 (7), 611–615. doi:10.1177/1350650110396017
Potenziale ingenieurkeramischer Werkstoffe in nasslaufenden Friktionssystemen.
Bernhardt, J.; Albers, A.
2011. Abschlusskolloquium Sonderforschungsbereich 483 "Hochbeanspruchte Gleit- und Friktionssysteme auf Basis ingenieurkeramischer Werkstoffe", 25. Oktober 2011, Kongresszentrum Karlsruhe. Hrsg.: A. Albers, 105–114, KIT Scientific Publishing, Karlsruhe
1995
Selbsteinstellende Kupplung (SAC) und Zweimassenschwungrad (ZMS) zur Verbesserung des Antriebsstrangkomforts.
Albers, A.
1995. Getriebe in Fahrzeugen ’95 : Tagung Friedrichshafen, 26 und 27. April 1995, 153–168, VDI-Verl., Düsseldorf

Overview of all IPEK Publications

An overview of all IPEK publications can be found here.