Profile

Machine Elements and Tribology of the Faculty of Mechanical Engineering at the University of Kassel under the direction of Prof. Dr.-Ing. A. Rienäcker deals with the simulation of hydrodynamically lubricated contacts. One focus is on the calculation of motor bearings. Both large non-linear rigid body movements and local elastic deformations are taken into account in their effect on the pressure distribution in the lubricating film. With the software tools already developed under the predecessor, Prof. Dr.-Ing. G. Knoll, reliable statements can be made about the operating behavior, including the occurrence of signs of wear. Applications include topics such as piston ring dynamics and friction, piston-cylinder dynamics, piston pins, connecting rods and the crankshaft base bearings. With the help of these calculation methods, it is possible to determine and optimize the impact pulses and the associated noise emission of the engine.

Another focus is on investigating the influence of the surface microstructure on the hydrodynamic load-bearing structure and mixed friction. To this end, we have developed our own simulation techniques, which are already being used in many industrial sectors.

Testing technology is also offered for the topics mentioned, with which the agreement between simulation and measurement has been successfully demonstrated in many cases.

For many years, cooperation has been entered into with the research associations for combustion engines FVV and drive technology FVA. Basic research is carried out with the support of the German Research Foundation DFG.