Wind-induced vibration experiment on solar wing
Wind-induced vibration experiment on solar wing
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DOI：
10.1051/matecconf/20152404006
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Y. Tamura;Y. Kim;A. Yoshida;Takashi Itoh
中科院分区：
文献类型：
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作者：
Y. Tamura;Y. Kim;A. Yoshida;Takashi Itoh
本文介绍了太阳翼系统风振响应的风洞实验结果，并利用缩比模型研究了其气动弹性不稳定性。该模型由12个太阳能翼单元组成，每个单元由2根电缆支撑。单元之间的间隙设置为恒定。采用了两个垂度比（即垂度/跨度）。风速范围为0 ~ 16 m/s，共18种风速。试验结果表明，当垂度为2%时，在平均风速为10 m/s、风向为40°时，脉动位移突然增大。当风向大于60°时，在平均风速为1 m/s附近，脉动位移也出现突然增大的现象。当垂度增大到5%时，各单元的平均位移存在一定的差异，低风速下的脉动位移出现复杂的振动。
This paper describes wind tunnel experimental results of wind-induced responses of a solar wing system, and investigates its aeroelastic instability using a scaled model. The model comprised 12 solar wing units, each supported by 2 cables. The gaps between units were set constant. Two sag ratios (i.e. sag/span length) were adopted. The wind speed was varied from 0 to 16m/s, and 18 different wind speeds were used. From the experiment, when the sag was 2%, a sudden increase in fluctuating displacement was found near a mean wind speed of 10m/s at a wind direction of 40°. A sudden increase in fluctuating displacements was also found near a mean wind speed of 1m/s when the wind direction was larger than 60°. When the sag increased to 5%, some differences among units in mean displacements were found and complicate vibration in fluctuating displacement at low wind speed was observed.