Institute of Fundamental Technological Research
Polish Academy of Sciences

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Feng Wang

Dalian University of Technology (CN)


Recent publications
1.  Zhang Q., Duan Z., Jankowski Ł., Wang F., Experimental validation of a fast dynamic load identification method based on load shape function, JOURNAL OF VIBRATION AND SHOCK, ISSN: 1000-3835, Vol.30, No.9, pp.98-102, 154, 2011

Abstract:
在动态荷载识别中常常由于矩阵的病态性影响识别的精度,利用有限元理论中的形函数逼近荷载曲线,将识别离散的荷载历程转化为计算有限的形函数权重,从而显著改善反卷积法识别荷载中存在的采样时间长或采样频率高时数值求解困难的问题;并能改善反问题的病态性,提高对噪音的鲁棒性。一个连续梁的数值算例比较验证了该方法在5%的高斯噪声影响下能精确地识别未知荷载。悬臂梁试验中,通过实测的结构动态响应,在移动时间窗内利用荷载形函数方法可以实现激励的在线识别。

Keywords:
结构健康监测, 荷载识别, 在线识别, 反卷积法, 形函数

Affiliations:
Zhang Q. - IPPT PAN
Duan Z. - Shenzhen Graduate School of Harbin Institute of Technology (CN)
Jankowski Ł. - IPPT PAN
Wang F. - Dalian University of Technology (CN)

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