Shape reconstruction of FBG intelligent flexible structure based on B-spline fitting
| Autor: | 张合生 Zhang He-sheng, 易金聪 Yi Jin-cong, 孙冰 Sun Bing, 蒋丽娜 Jiang Li-na, 朱晓锦 Zhu Xiao-jin |
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| Rok vydání: | 2011 |
| Předmět: |
Computer simulation
business.industry B-spline Linear interpolation Curvature Atomic and Molecular Physics and Optics Standard deviation Electronic Optical and Magnetic Materials Sensor array Fiber Bragg grating Curve fitting Computer vision Artificial intelligence business Algorithm ComputingMethodologies_COMPUTERGRAPHICS Mathematics |
| Zdroj: | Optics and Precision Engineering. 19:1627-1634 |
| ISSN: | 1004-924X |
| Popis: | Three-dimensional curve fitting and reconstruction of an intelligent structure shape were researched to implement the active monitoring for a high-performance aircraft structure shape.Firstly,the B-spline curve fitting method and recursive algorithm for coordinate fitting were introduced,and algorithm processes and implementation steps as well as numerical simulation analysis were presented.Then,a flexible structure model and its experimental environment were established,and visualization software was developed based on the Visual C++ and OpenGL technology.Furthermore,the curvature detection principle of the orthogonal distributed Fiber Bragg Grating(FBG) sensor array was demonstrated,subsequently,the three-dimensional space shape fitting and reconstruction of the experiment model structure were analyzed and verified.Finally,B-spline fitting algorithm and linear interpolation algorithm were adopted separately to construct a standard circle with the radius of 50 cm.Experimental results show that B-spline fitting algorithm has better graphical reconstruction effects comparing with linear interpolation algorithm,and its standard deviation is 40% that of linear interpolation.As the FBG intelligent flexible structure shows the better shape reconstruction and visualization,it verifies the high precision and low error characteristics of the B-spline algorithm. |
| Databáze: | OpenAIRE |
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