Abstract
A vibration optimization method of damped blade based on golden section is proposed in this paper. The optimal normal loads and damper positions can be determined fast and reliably. Specifically, this method is applied to optimize vibration security of an actual turbine blade stage. By using Mindlin friction model, a numerical analysis of dynamic characteristics is performed. The gap of shrouds is taken as the optimal object and the value is determined finally. The results indicate that, the optimum value is obtained as 1.60mm.The frequency avoidance ratio of the damped blade is sufficient for security. Meanwhile, the response amplitudes are decreased significantly.
| Original language | English |
|---|---|
| Article number | 012052 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 381 |
| Issue number | 1 |
| DOIs | |
| State | Published - 16 Aug 2018 |
| Event | 4th Annual International Workshop on Materials Science and Engineering, IWMSE 2018 - Xi'an, Shanxi, China Duration: 18 May 2018 → 20 May 2018 |
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