TLS-based composite structure deformation analysis validated with laser tracker

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  • Jiangsu University of Science and Technology
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Original languageEnglish
Pages (from-to)60-65
Number of pages6
JournalComposite structures
Volume202
Early online date4 Oct 2017
Publication statusPublished - 15 Oct 2018

Abstract

This paper focuses on the adjustment of B-spline approximation to terrestrial laser scanning (TLS) data and its contribution to deformation analysis of composite arched structures. The deformation of an arch structure under static loading conditions are investigated with TLS technology which is accurate, time-efficient, and capable to obtain dense 3D coordinates of point clouds for the measured objects. Highly accurate approximation methods for the point clouds data are extremely important for structural deformation analysis. The innovation of this paper is that parameters of B-spline is optimized with laser tracker (LT) to improve the accuracy of deformation monitoring and analysis, where the result is justified with LT data and the uncertainties are analyzed. It is revealed that optimized B-spline approximation agrees better with LT result. The improvement to the B-spline curve with minimum standard deviation reaches 52%, and its improvement to polynomial approximation reaches 77%.

Keywords

    B-spline fit, Composite arch, Data extraction, Deformation analysis, Point clouds, Terrestrial laser scanning

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Cite this

TLS-based composite structure deformation analysis validated with laser tracker. / Xu, Xiangyang; Bureick, Johannes; Yang, Hao et al.
In: Composite structures, Vol. 202, 15.10.2018, p. 60-65.

Research output: Contribution to journalArticleResearchpeer review

Xu X, Bureick J, Yang H, Neumann I. TLS-based composite structure deformation analysis validated with laser tracker. Composite structures. 2018 Oct 15;202:60-65. Epub 2017 Oct 4. doi: 10.1016/j.compstruct.2017.10.015, 10.15488/2592
Xu, Xiangyang ; Bureick, Johannes ; Yang, Hao et al. / TLS-based composite structure deformation analysis validated with laser tracker. In: Composite structures. 2018 ; Vol. 202. pp. 60-65.
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abstract = "This paper focuses on the adjustment of B-spline approximation to terrestrial laser scanning (TLS) data and its contribution to deformation analysis of composite arched structures. The deformation of an arch structure under static loading conditions are investigated with TLS technology which is accurate, time-efficient, and capable to obtain dense 3D coordinates of point clouds for the measured objects. Highly accurate approximation methods for the point clouds data are extremely important for structural deformation analysis. The innovation of this paper is that parameters of B-spline is optimized with laser tracker (LT) to improve the accuracy of deformation monitoring and analysis, where the result is justified with LT data and the uncertainties are analyzed. It is revealed that optimized B-spline approximation agrees better with LT result. The improvement to the B-spline curve with minimum standard deviation reaches 52%, and its improvement to polynomial approximation reaches 77%.",
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AU - Bureick, Johannes

AU - Yang, Hao

AU - Neumann, Ingo

N1 - Funding Information: The publication of this article was funded by the Open Access Fund of the Leibniz Universität Hannover . The authors gratefully acknowledge the support of Massivbau Institute to this research work and also would like to acknowledge the support of Natural Science Foundation of Jiangsu Province (No: BK20160558 ).

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