Impact force identification via sparse regularization with generalized minimax-concave penalty

2020 ◽  
Vol 484 ◽  
pp. 115530
Author(s):  
Junjiang Liu ◽  
Baijie Qiao ◽  
Weifeng He ◽  
Zhibo Yang ◽  
Xuefeng Chen
Keyword(s):  
Impact Force ◽  
Sparse Regularization ◽  
Force Identification ◽  
Minimax Concave Penalty

Group sparse regularization for impact force identification in time domain

2019 ◽  
Vol 445 ◽  
pp. 44-63 ◽  
Author(s):  
Baijie Qiao ◽  
Zhu Mao ◽  
Jinxin Liu ◽  
Zhibin Zhao ◽  
Xuefeng Chen
Keyword(s):  
Time Domain ◽  
Impact Force ◽  
Sparse Regularization ◽  
Force Identification

An enhanced sparse regularization method for impact force identification

2019 ◽  
Vol 126 ◽  
pp. 341-367 ◽  
Author(s):  
Baijie Qiao ◽  
Junjiang Liu ◽  
Jinxin Liu ◽  
Zhibo Yang ◽  
Xuefeng Chen
Keyword(s):  
Regularization Method ◽  
Impact Force ◽  
Sparse Regularization ◽  
Force Identification

Non-convex sparse regularization for impact force identification

2020 ◽  
Vol 477 ◽  
pp. 115311 ◽  
Author(s):  
Baijie Qiao ◽  
Chunyan Ao ◽  
Zhu Mao ◽  
Xuefeng Chen
Keyword(s):  
Impact Force ◽  
Sparse Regularization ◽  
Force Identification

scholarly journals Bayesian sparse regularization for multiple force identification and location in time domain

2018 ◽  
Vol 27 (9) ◽  
pp. 1221-1262 ◽  
Author(s):  
Souleymane Samagassi ◽  
Eric Jacquelin ◽  
Abdellatif Khamlichi ◽  
Moussa Sylla
Keyword(s):  
Time Domain ◽  
Sparse Regularization ◽  
Force Identification

Force identification under unknown initial conditions by using concomitant mapping matrix and sparse regularization

2020 ◽  
pp. 107754632094469
Author(s):  
Xijun Ye ◽  
Chudong Pan
Keyword(s):  
Optimization Problem ◽  
Initial Conditions ◽  
Sparse Regularization ◽  
Force Identification ◽  
Moving Force ◽  
Dynamic Forces ◽  
Force Reconstruction ◽  
Structural Responses ◽  
One Step ◽  
Regularization Strategy

Unknown initial conditions can affect the identified accuracy of dynamic forces. Direct measurement of initial conditions is relatively difficult. This study proposes a sparse regularization–based method for identifying forces considering influences of unknown initial conditions. The initial conditions are embedded in a classical governing equation of force identification. The key idea is to introduce a concept of concomitant mapping matrix for reasonably expressing the initial conditions. First, a dictionary is introduced for expanding the dynamic forces. Then, the concomitant mapping matrix is formulated by using free vibrating responses, which correspond to structural responses happening after the structure is subjected to each atom of the force dictionary. A sparse regularization strategy is applied for solving the ill-conditioned equation. After that, the problem of force identification is converted into an optimization problem, and it can be solved by using a one-step strategy. Numerical simulations are carried out for verifying the feasibility and effectiveness of the proposed method. Illustrated results clearly show the applicability and robustness of the proposed method for dealing with force reconstruction and moving force identification.

scholarly journals Impact Force Identification and Damage Monitoring of Sandwich Panels Using Radiated Sounds

2015 ◽  
Vol 41 (3) ◽  
pp. 85-93
Author(s):  
Satoshi ATOBE ◽  
Masato MURAMOTO ◽  
Ning HU ◽  
Hisao FUKUNAGA
Keyword(s):  
Impact Force ◽  
Sandwich Panels ◽  
Force Identification ◽  
Damage Monitoring

Impact damage monitoring of FRP pressure vessels based on impact force identification

2014 ◽  
Vol 23 (5-6) ◽  
pp. 491-505 ◽  
Author(s):  
Satoshi Atobe ◽  
Sunao Sugimoto ◽  
Ning Hu ◽  
Hisao Fukunaga
Keyword(s):  
Impact Force ◽  
Impact Damage ◽  
Pressure Vessels ◽  
Force Identification ◽  
Damage Monitoring

scholarly journals Impact Damage Monitoring of CFRP Laminated Plate Based on Impact Force Identification

2009 ◽  
Vol 57 (666) ◽  
pp. 295-300 ◽  
Author(s):  
Masanori TAJIMA ◽  
Yuki MIURA ◽  
Sunao SUGIMOTO ◽  
Masaki KAMEYAMA ◽  
Ning HU ◽  
...  
Keyword(s):  
Impact Force ◽  
Impact Damage ◽  
Laminated Plate ◽  
Force Identification ◽  
Damage Monitoring
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