Non-convex sparse regularization for impact force identification

Many convex regularization methods, such as the classical Tikhonov regularization based on l2-norm penalty and the standard sparse regularization method based on l1-norm penalty, have been widely investigated for impact force identification. However, in many practical applications, these regularizat...

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Veröffentlicht in:	Journal of sound and vibration 2020-07, Vol.477, p.115311, Article 115311
Hauptverfasser:	Qiao, Baijie, Ao, Chunyan, Mao, Zhu, Chen, Xuefeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Computational geometry Computer simulation Convex analysis Convexity Identification methods Impact force identification Impact loads Inverse problem Inverse problems Lp-norm regularization Mathematical models Non-convex Numerical analysis Optimization Regularization Regularization methods Simulation
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Zusammenfassung:	Many convex regularization methods, such as the classical Tikhonov regularization based on l2-norm penalty and the standard sparse regularization method based on l1-norm penalty, have been widely investigated for impact force identification. However, in many practical applications, these regularization methods commonly underestimate the true solution. In this paper, we propose a non-convex sparse regularization method based on lp-norm (0
ISSN:	0022-460X 1095-8568
DOI:	10.1016/j.jsv.2020.115311