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Browsing by Subject "Steel beams and girders"

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Finite element analysis based on a parametric model by approximating point clouds

Xu, Wei; Neumann, Ingo (Basel : MDPI AG, 2020)

Simplified models are widely applied in finite element computations regarding mechanical and structural problems. However, the simplified model sometimes causes many deviations in the finite element analysis (FEA) of ...
A framework based on reference data with superordinate accuracy for the quality analysis of terrestrial laser scanning-based multi-sensor-systems

Stenz, Ulrich; Hartmann, Jens; Paffenholz, Jens-André; Neumann, Ingo (Basel : MDPI AG, 2017)

Terrestrial laser scanning (TLS) is an efficient solution to collect large-scale data. The efficiency can be increased by combining TLS with additional sensors in a TLS-based multi-sensorsystem (MSS). The uncertainty of ...
High-precision 3D object capturing with static and kinematic terrestrial laser scanning in industrial applications-approaches of quality assessment

Stenz, Ulrich; Hartmann, Jens; Paffenholz, Jens-André; Neumann, Ingo (Basel : MDPI AG, 2020)

Abstract Terrestrial laser scanning is used in many disciplines of engineering. Examples include mobile mapping, architecture surveying, archaeology, as well as monitoring and surveillance measurements. For most of the ...
Intelligent calibration of static FEA computations based on terrestrial laser scanning reference

Xu, Wu; Bao, Xiangyu; Chen, Genglin; Neumann, Ingo (Basel : MDPI AG, 2020)

The demand for efficient and accurate finite element analysis (FEA) is becoming more prevalent with the increase in advanced calibration technologies and sensor-based monitoring methods. The current research explores a ...
Model selection for parametric surfaces approximating 3d point clouds for deformation analysis

Zhao, Xin; Kargoll, Boris; Omidalizarandi, Mohammad; Xu, Xiangyang; Alkhatib, Hamza (Basel : MDPI AG, 2018)

Deformation monitoring of structures is a common application and one of the major tasks of engineering surveying. Terrestrial laser scanning (TLS) has become a popular method for detecting deformations due to high precision ...
Optimisation of the calibration process of a k-tls based multi-sensor-system by genetic algorithms

Hartmann, J.; Von Gösseln, I.; Schild, N.; Dorndorf, A.; Paffenholz, J.-A.; Neumann, I. (Göttingen : Copernicus GmbH, 2019)

In recent years, the requirements in the industrial production of elongated objects, e.g., aircraft, have been increased. An essential aspect of the production process is the 3D object detection as well as the qualitative ...
Point-based and model-based geolocation analysis of airborne laser scanning data

Sefercik, Umut Gunes; Buyuksalih, Gurcan; Jacobsen, Karsten; Alkan, Mehmet (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)

Airborne laser scanning (ALS) is one of the most effective remote sensing technologies providing precise three-dimensional (3-D) dense point clouds. A large-size ALS digital surface model (DSM) covering the whole Istanbul ...
Registration of terrestrial laser scanning data using planar patches and image data

Dold, Christoph; Brenner, Claus ([Wechselnde Verlagsorte] : ISPRS, 2006)

The fully automatic registration of terrestrial scan data is still a major topic for many research groups. Existent methods used in commercial software often use artificial markers which are placed in the scene and measured ...
Robust and automatic modeling of tunnel structures based on terrestrial laser scanning measurement

Xu, Xiangyang; Yang, Hao; Kargoll, Boris (London : SAGE Publications Ltd., 2019)

The terrestrial laser scanning technology is increasingly applied in the deformation monitoring of tunnel structures. However, outliers and data gaps in the terrestrial laser scanning point cloud data have a deteriorating ...
Terrestrial laser scanning technology for deformation monitoring and surface modeling of arch structures

Yang, Hao; Omidalizarandi, Mohammad; Xu, Xiangyang; Neumann, Ingo (London : Elsevier Ltd., 2017)

Terrestrial laser scanning (TLS) is capable to be a reliable deformation monitoring device with high-precision for concrete composite structures. Measurements based on TLS for an arch structure with monotonic loading is ...
TLS-based composite structure deformation analysis validated with laser tracker

Xu, Xiangyang; Bureick, Johannes; Yang, Hao; Neumann, Ingo (Amsterdam : Elsevier, 2017)

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 ...

Now showing items 1-11 of 11

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Browsing by Subject "Steel beams and girders"

Browsing by Subject "Steel beams and girders"

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