Deformation Detection Method of Wing C-Beam Based on Feature Invariant Constraint

Guanglu Hu; Haihua Cui; Peng Zhai; Yuting Jin

doi:10.3788/LOP202158.1215005

Journals >Laser & Optoelectronics Progress >Volume 58 >Issue 12 >Page 1215005 > Article

Laser & Optoelectronics Progress
Vol. 58, Issue 12, 1215005 (2021)

Deformation Detection Method of Wing C-Beam Based on Feature Invariant Constraint

Guanglu Hu, Haihua Cui^*, Peng Zhai, and Yuting Jin

Author Affiliations

College of Mechanical and Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China

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DOI: 10.3788/LOP202158.1215005 Cite this Article Set citation alerts

Guanglu Hu, Haihua Cui, Peng Zhai, Yuting Jin. Deformation Detection Method of Wing C-Beam Based on Feature Invariant Constraint[J]. Laser & Optoelectronics Progress, 2021, 58(12): 1215005 Copy Citation Text

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Fig. 1. Processing flow of proposed method

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Fig. 2. Mismatch results of springback deformation of C-beam. (a) Section of C-beam; (b) calculation result of overall springback deformation of C-beam

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Fig. 3. Symmetric plane of C-beam extracted by different algorithms. (a) Principal component analysis algorithm; (b) symmetry plane extraction algorithm

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Fig. 4. Registration results of different registration algorithms. (a) ICP algorithm; (b) IRLS-ICP algorithm; (c) Ref. [15]; (d) proposed algorithm

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Fig. 5. Amount of springback deformation of different algorithms. (a) ICP algorithm; (b) IRLS-ICP algorithm; (c) Ref. [15]; (d) proposed algorithm

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Area of C-beam	Classic ICP	IRLS-ICP	Ref. [15]	Proposed algorithm
F_I	1.116	1.108	1.126	1.274
F_w	0.817	0.822	0.801	0.802
F_β	1.170	1.124	0.967	0.811
F_α	1.546	1.581	1.775	2.057

Table 1. RMSE of different registration algorithms unit: mm

C-beam data	Distance	ICP	IRLS-ICP	Ref. [15]	Proposed algorithm
Measured data	Maximum springback deformation	4.251	4.216	4.013	4.627
	$R_{RMSE, F_{I}}$	1.430	1.498	1.451	1.550
	D_RMSE	0.777	0.959	0.956	0.577
	$R_{RMSE, F_{w}}$	0.941	1.092	0.871	0.874
Model generated data	Maximum springback deformation	3.052	3.035	3.500	3.923
	$R_{RMSE, F_{I}}$	1.116	1.108	1.126	1.247
	D_RMSE	1.804	1.470	1.196	0.450
	$R_{RMSE, F_{w}}$	0.817	0.822	0.801	0.802

Table 2. Comparison of results of different registration algorithms unit: mm

Guanglu Hu, Haihua Cui, Peng Zhai, Yuting Jin. Deformation Detection Method of Wing C-Beam Based on Feature Invariant Constraint[J]. Laser & Optoelectronics Progress, 2021, 58(12): 1215005

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