| 基于信息融合技术的结构模型修正研究 |
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| 引用本文： | 韩芳,钟冬望,龚相超.基于信息融合技术的结构模型修正研究[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 韩芳 钟冬望 龚相超 |
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| 作者单位： | 武汉科技大学理学院工程力学系;冶金工业过程系统科学湖北省重点实验室; |
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| 基金项目： | 国家自然科学基金(51108358); 湖北省教育厅基金(B20101102); 湖北省重点实验室基金(C201004)资助 |
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| 摘 要： | 提出基于信息融合技术的结构模型修正法.在概率思维条件下,采用二次响应面代替有限元模型,通过调整融合系数实现先验信息和实测信息的融合,并利用响应面自身特性和精度要求进行迭代修正.该方法计算量小,程序化高,易于工程应用,还可推广至非线性等复杂情况.某抽水蓄能电站地下厂房结构的有限元模型修正结果验证了该方法的有效性.
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| 关 键 词： | 模型修正 信息融合 贝叶斯理论 |
RESEARCH ON MODEL UPDATING BASED ON INFORMATION FUSION |
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| Fang Han, Dongwang Zhong, Xiangchao Gong.RESEARCH ON MODEL UPDATING BASED ON INFORMATION FUSION[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Fang Han Dongwang Zhong Xiangchao Gong |
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| Institution: | Fang Han1,2 Dongwang Zhong1,2 Xiangchao Gong1,2(1Department of Engineering Mechanics,School of Science,Wuhan University of Science and Technology,Wuhan,430065)(2Hubei Province Key Laboratory of Systems Science in Metallurgical Process,430081) |
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| Abstract: | A new model updating method based on Bayes and information fusion is established.Samples are designed by test and second-order response surface is adopted as the fast operation model which can be easily modified and perfected by fully use of prior knowledge.This method can be generalized to large and complicated nonlinear structures for its computational efficiency and solution convergence.The underground powerhouse of pumped-storage power station is employed to verify the effectiveness of the method. |
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| Keywords: | model updating information fusion Bayesian method |
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