Abstract
Modeling of a nickel-base single crystal superalloy turbine blade which accounts for material orthotropy is carried out to investigate the influence of axial direction and randomness crystallographic orientation on the dynamic natural frequency. In this paper, the natural frequency of the blade is calculated by the finite element method based on the commercial software ABAQUS. The results show that the deviation of the axial directions has a significant effect on the lower frequency as well as on the higher frequency, while the randomness in crystallographic orientations has a great impact only on higher order frequency. It is necessary to take the crystal orientation into account as an optimized factor and the variation of the vibration characteristics can be predicted.
| Original language | English |
|---|---|
| Pages (from-to) | 372-377 |
| Number of pages | 6 |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 23 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2014 |
Keywords
- finite element method
- Keyword: Crystal orientation
- turbine blade
- vibration