| 基于Matlab的颤振自激力时域化 |
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| 引用本文： | 乔婷婷. 基于Matlab的颤振自激力时域化[J]. 山西交通科技, 2011, 0(2): 62-63,82 |
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| 作者姓名： | 乔婷婷 |
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| 作者单位： | 山西省公路局长治分局勘测设计所; |
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| 摘 要： | 基于风洞试验得到的颤振导数无法直接应用于颤振时域计算,需要基于最小二乘原理拟合得到颤振自激力的时域表达式,方能进行时域计算。基于Matlab提供的lsqnonlin函数,对颤振自激力的时域化表达式中的未知系数进行拟合,并得到了较好的结果。
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| 关 键 词： | 颤振 自激力 导数 Matlab 最小二乘 拟合 |
The Time Domain of Flutter Self-excited Forces Based on Matlab |
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| QIAO Ting-ting. The Time Domain of Flutter Self-excited Forces Based on Matlab[J]. Shanxi Science & Technology of Communications, 2011, 0(2): 62-63,82 |
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| Authors: | QIAO Ting-ting |
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| Affiliation: | QIAO Ting-ting(Changzhi Branch of Shanxi Provincial Highway Bureau,Changzhi,Shanxi 046000,China) |
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| Abstract: | Based on the lsqnonlin function provided by Matlab,the paper discussed the unknown coefficient fitting in the expression of the time domain for flutter self-excited forces and achieved better results. |
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| Keywords: | flutter self-excited force derivative Matlab least square fitting |
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