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Professorship Machine Elements and Product Development
Coefficient Of Friction

Growing economic and ecological pressure as well as increased technical requirements lead to higher power densities for the force-transmitting/force-locking components. The frequently used frictional connections (e.g. screw, flange, press-fit connections) offer a considerable increase potential in power density and wear resistance. For over 10 years, IKAT has been using model-based laboratory tests to investigate the coefficient of static friction (also: coefficient of friction or coefficient of friction) under static and dynamic conditions. dynamic load. The main areas of research are the characterization of friction-locking surfaces, friction-value-increasing applications, and Remedial measures against vibration wear (Fretting Wear).

The coefficient of static friction is to be understood as a system variable with a multitude of influencing parameters. In order to use existing potentials in friction-locking connections, an experimental investigation is indispensable. With the help of standardized Test methods on model samples are examined at the research centre with regard to their transfer behaviour in various tribological configurations. A main field of research is the synthesis of new design/selection tools for friction-enhancing measures (e.g. micro/laser structures, hard particles, coatings). for static and dynamic load cases. Furthermore, the suitability of remedial measures against vibration wear can be examined and evaluated with the aid of the test procedures.

The experimental model investigations are carried out on the laboratory test benches under torsional and shear force loads. Real component tests are carried out on the universal rotary cylinder test bench.

Torsion test bench (static/dynamic)                                    Shear force test rig (static)

Torsion  or Shear force test rig

Test rig for torsion

Test rig for torsion

Research and development of a new type of rotor design using segmented sheet packs - Tribology subproject

Funding agency: SAB
Research association: -
Duration:30 Months
Start time:Mar 2018
Editor:Silvano Oehme

Investigations on the transferability of model-based static friction values and friction characteristics to joined real components

Funding agency: BMWi
Research association: FVV
Duration:30 Months
End time:May 2017
Editor:Friedemann Reiß

Development of an evaluation procedure for the design, selection and optimisation of anti-fretting coatings in line with the stresses involved

Funding agency: BMWi
Research association: FVA
Duration:27 Months
End time:Feb 2015
Editor:Friedemann Reiß

Benchmark study "Anti-fretting coatings"

Funding agency: FVA (Eigenmittel)
Research association: FVA
Duration:9 Months
End time:May 2011
Editor:Andreas Maiwald

GECKO - Design and Determination of Characteristic Values of Friction Optimized Surfaces | Subproject I: Analysis and Synthesis of Characteristic Values for Functional Design of Die Face Pairs in Frictional Joints

Funding agency: BMWi/DFG
Research association: FVV
Project partners: IFMQ (TU Chemnitz); Institut für Maschinenkonstruktion (Otto-von-Guericke-Universität Magdeburg); Fraunhofer-Institut für Werkstoff- und Strahltechnik; Laserinstitut (Hochschule Mittweida)
Duration:36 Months
End time:Jun 2014
Editor:Matthias Gräfensteiner

Determination of static friction coefficients and friction characteristics as well as their influencing parameters on the basis of a new standard test method

Funding agency: BMWi
Research association: FVV
Duration:32 Months
End time:Jan 2009
Editor:Stefan Schuller

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