Shaft–Hub Connections
Strength investigations in finite-life, fatigue, and operational strength on selected positive-fit and friction-fit joints
1 General description
2 Focus of research
The complex interaction between stress-based loading and additional wear mechanisms (e.g., fretting fatigue) makes experimental investigations of the transmission behaviour of SHC indispensable. These are accompanied by various simulation tools and ultimately serve to validate them. The investigations are carried out on coned and cylindrical press fit connections as well as keyed, knurled, and polygonal fits. The primary focus is on the fatigue (long-term) strength of SHC. Investigations are also conducted in the low cycle fatigue range.
3 Tools
The numerical structural analyses of SHC are performed using the FE software ABAQUS. A dedicated compute cluster of the chair is available for this purpose. Other mathematical problems are processed with Mathcad or MATLAB®. 
The current state of research can be applied to a complete gearbox design via the FVA Workbench. 
4 Projects
Inner knurled interference fit
| Funding agency: | AiF |
| Research association: | FVA |
| Duration: | 27 Months |
| Start time: | Apr 2022 |
| Editor: | Tobias Hentschel |
| Further Information: | FVA-Nr.: 956 I |
The internal knurl pressure connection (IRPV) is characterised as a representative of non-positive and positive shaft-hub connection (WNV) by the transmission of high power densities in the field of drive technology. With the help of experimental and dynamic investigations of a wide range of parameters, existing design methods and failure mechanisms of the inverse method, the external knurl interference fit, are qualified and subsequently transferred into a standardised design specification. The intended research results will serve the future design of WNV, with which performance-limiting weak points in the drive train can be eliminated or significantly higher volumetric efficiency values can be achieved in new designs.
New conception DIN 6892
| Funding agency: | AiF |
| Research association: | FVA |
| Duration: | 30 Months |
| Start time: | Feb 2022 |
| Editor: | Benjamin Muhammedi |
| Further Information: | FVA-Nr.: 600 III |
FVA-Guidline Fatigue of shafts
| Funding agency: | AiF |
| Research association: | FVA |
| Duration: | 6.5 Months |
| Start time: | Oct 2021 |
| Editor: | Lukas Suchy |
| Further Information: | FVA-Nr.: 321 VII |
Translated with www.DeepL.com/Translator (free version)
Mechanical surface hardening
| Funding agency: | AiF |
| Research association: | FVA |
| Duration: | 21 Months |
| Start time: | May 2022 |
| Editor: | Benjamin Muhammedi Stefanie Günther (TU Dresden, IMM) Thomas Werner (TU Dresden, IFF) |
| Further Information: | FVA-Nr.: 840 II |
