| 航天器发射塔风振响应分析 |
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| 引用本文： | 马学坤,曹宗胜,邹振祝. 航天器发射塔风振响应分析[J]. 国防交通工程与技术, 2005, 3(4): 27-30,37 |
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| 作者姓名： | 马学坤 曹宗胜 邹振祝 |
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| 作者单位： | 石家庄铁道学院,河北,石家庄,050043;石家庄铁道学院,河北,石家庄,050043;石家庄铁道学院,河北,石家庄,050043 |
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| 摘 要： | 结合高75m的某钢结构航天器发射塔，通过ANSYS软件，采用频域法对结构在顺风向风荷载作用下的动力响应进行分析计算。通过考虑结构的不同阶振型，计算不同情况下节点位移响应根方差。对结果进行分析比较，得出不对称复杂结构，在计算风动力位移响应时，仅仅考虑第一阶振型是不够的，必须综合考虑多阶振型对结构的影响。
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| 关 键 词： | 钢结构 风荷载 随机振动 频域法 位移响应 |
| 文章编号： | 1672-3953（2005）04-0027-05 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005-09-13 |
Wind-Induced Response Analysis of Spacecraft-Launching Tower |
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| MA Xue-kun,CAO Zong-sheng,ZOU Zhen-zhu. Wind-Induced Response Analysis of Spacecraft-Launching Tower[J]. Traffic Engineering and Technology for National Defence, 2005, 3(4): 27-30,37 |
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| Authors: | MA Xue-kun CAO Zong-sheng ZOU Zhen-zhu |
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| Affiliation: | The Shijiazhuang Railway Institute, Shijiazhuang 050043, China |
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| Abstract: | In this paper, the wind-induced dynamic response of the structure excited by the along-wind loads is analyzed. The nodal displacement response of the 75-meter-high spacecraft-launching tower, which is complex in shape, is studied by considering different numbers of structural modes. The conclusion shows that, for wind-induced dynamic displacement response of the structure, which is nonsymmetrical and complex in shape, it is not sufficient and reliable only to consider the first mode of the structure. |
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| Keywords: | steel structure wind loads random vibration frequency domain method displacement response |
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