PDF
Full
Outline
With the development of wind power resource advantageous areas gradually saturated, the focus of wind power development has shifts to low wind speed areas with relatively poor wind resource conditions. Distributed, high power, high tower and long blades have become the trend in the wind power industry. Based on the above, a new rectangular concrete filled steel tube bundle wind turbine tower is proposed. The tower is made of rectangular concrete filled steel tube bundles, which has the advantages of high strength, rigidity and energy consumption capacity. To study the wind vibration response characteristics of this tower structure, the Kaimal pulsating wind speed power spectrum was chosen and the wind load time curve was simulated using the harmonic synthesis method to carry out the dynamic time analysis. Wind vibration coefficients and equivalent static wind loads were calculated for the tower. The results show that the maximum displacement of the top of this new tower at rated wind speed is 911.84 mm, which corresponds to a horizontal displacement angle of 1/154 and meets the code requirements. The tower components are of good strength and have a large safety margin. The wind vibration coefficient obtained by the displacement-equivalent gust load factor method is lower. Under the equivalent static wind loads calculated by the inertial wind load method, the structural displacements and basal shear forces are basically the same as those obtained from the structural random vibration analysis.
PDF
65
29
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
