Abstract
Based on similarity theory in wind tunnel test and random vibration theory, the frequency compensation of fluctuating wind loads in wind-induced response analysis is proposed. The frequency compensation refers to the method that reconstructs the high-frequency part of fluctuating wind loads based on experimental data. The purpose of this method is to solve the high-frequency cut-off problem owing to the scaled ratio in wind tunnel tests. Firstly the necessity of frequency compensation problem is discussed, then a practical method of frequency compensation is proposed by combining the fluctuating wind energy spectrum theory and the Proper Orthogonal Decomposition technique. According to this method, the wind-induced response of a single layer reticular shell is analyzed based on a wind tunnel test in order to investigate the influence of high-frequency part of fluctuating wind loads. The results indicate the validity of the method proposed.
| Original language | English |
|---|---|
| Pages (from-to) | 480-486 |
| Number of pages | 7 |
| Journal | Zhendong Gongcheng Xuebao/Journal of Vibration Engineering |
| Volume | 23 |
| Issue number | 5 |
| State | Published - Oct 2010 |
| Externally published | Yes |
Keywords
- Frequency compensation
- Proper orthogonal decomposition
- Wind tunnel test
- Wind-induced response analysis
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