From May 16-17, the WNV/strength section presented its research results at the PA AK WNV at TU Clausthal. In the domed building of the Aula Academica, topics of frictional and positive shaft-hub connections in particular were discussed and debated. The transfer of research into practice is an important function of the PA AK WNV, which is why many representatives from industry were present in addition to representatives from research institutes from all over Germany. We would like to thank the FVA and IMW for the constructive exchange and the excellent organization of the event.

 

The Dresdener Maschinenlemente Kolloquium took place from 14-15 May. IKAT – represented by Mr Muhammedi – presented the current status of the project „Sensor-integrated feather key„. We would like to thank you for the discussions and the exciting input during the conference. We look forward to the DMK 2026.

Growing ecological and economic pressure leads to ever higher and more complex stresses in the development of plain bearings. The research at the institute is therefore primarily concerned with the investigation and development of alternative sliding materials and the influence of geometric deviations. The main focus of the investigations is the wear behavior under the most varied operating conditions (particles, mixed friction, hydrodynamics).

The permissible loads of selected WNV (tapered and cylindrical interference fit as well as feather key, knurled, polygonal joints, etc.) have been investigated primarily at IKAT for decades in the area of fatigue, fatigue and fatigue strength. The behavior under individual loads (bending, torsion) as well as combined dynamic loads is analysed.

In contact with various components, deformations in connection with the prevailing joint pressure initiate the damage process of fretting fatigue. Current research activities at the institute focus on basic research on the damage phenomenon of fretting fatigue and pursue the objective of developing an impact-compliant calculation method.

While conventional mechanisms owe their deformability to the sliding or rolling interfaces in the joints, flexible mechanisms fulfill their function through elastic stretches in places that are deliberately designed to be flexible during design. This functional principle enables novel, shape-adaptive structures, which can be used, for example, in softrobotics or in variable-shape wings. The professorship focuses its research on optimization-based synthesis methods.

The strength tests focus on the tooth root load-bearing capacity of worm gear units. The challenge to numerical imaging lies in the complex geometry and the special material bronze.

The coefficient of static friction (also: coefficient of friction or coefficient of 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 (e.g. screw, flange, press-fit connections), an experimental investigation is indispensable. With the help of standardized test methods on model samples, a wide variety of tribological configurations are examined at the research centre with regard to their transmission behavior. A major 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.