Abstract
The purpose of this research is to identify the influences caused by local changes in contact regions of an aero-engine casing assembly on its dynamic and thermal behaviours through Finite Element (FE) methods. The creation and updates of the FE model are demonstrated in this paper. Two types of FE analyses are performed in this research. The first analysis is in the frequency domain, which focuses on the changes in natural frequencies caused by the different contact conditions. The second analysis is in the time domain to study the changes in frictional heat generation caused by alternate contact conditions of the interface regions.
In the concluding observations of this paper, results from these two types of analyses are interpreted to demonstrate that the local changes in contact regions can alter the dynamic and thermal responses of the aero-engine casing assembly by affecting several determining parameters differentially, and these changes caused by the different contact conditions are summarised, analysed and explained.
In the concluding observations of this paper, results from these two types of analyses are interpreted to demonstrate that the local changes in contact regions can alter the dynamic and thermal responses of the aero-engine casing assembly by affecting several determining parameters differentially, and these changes caused by the different contact conditions are summarised, analysed and explained.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of ISMA2018 International Conference on Noise and Vibration Engineering and USD2018 International Conference on Uncertainty in Structural Dynamics |
| Editors | Wim Desmet, Bert Pluymers, David Moens, Ward Rottiers |
| Place of Publication | Leuven, Belgium |
| Publisher | KU Leuven - Departement Werktuigkunde |
| Pages | 1835-1849 |
| Number of pages | 15 |
| ISBN (Electronic) | 9789073802995 |
| Publication status | Published - 19 Nov 2018 |
| Event | 28th International Conference on Noise and Vibration Engineering, ISMA2018 in conjunction with the 7th International Conference on Uncertainty in Structural Dynamics, USD2018 - Katholieke Universiteit Leuven, Leuven, Belgium Duration: 17 Sept 2018 → 19 Sept 2018 http://www.isma-isaac.be |
Conference
| Conference | 28th International Conference on Noise and Vibration Engineering, ISMA2018 in conjunction with the 7th International Conference on Uncertainty in Structural Dynamics, USD2018 |
|---|---|
| Country/Territory | Belgium |
| City | Leuven |
| Period | 17/09/18 → 19/09/18 |
| Internet address |
Keywords
- Jointed structures
- Dynamic response
- Energy loss
- Contact conditions
- Finite element analysis
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