This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1
The shell studied during the measurements performed in 2013 (a) and 2020 (b)
Figure 2
The flange torn off and bent in 2013 (a) and repaired in 2020 (b). The tile damaged in 2020 (d) compared to 2013 (c). The photos show the edges of the flange and narrow longitudinal slats forming additional edges
Figure 3
Point clouds from the epoch 2013 (a) and 2020 (b)
Figure 4
Chamfering of the mesh edge (a), undulations of the spline surface along the edge (b)
Figure 5
Periodic displacements of the structure determined by direct comparison of point clouds. View of the entire structure as well as the left and right parts of the front patches with deformations and edges
Figure 6
Periodic displacements of the structure determined by comparing the primary point cloud with the mesh model created for the current measurement. View of the entire structure as well as the left and right parts of the front patches with deformations and edges
Figure 7
Periodic displacements of the structure determined by comparing the primary point cloud with the spline model created for the current measurement. View of the entire structure as well as the left and right parts of the front patches with deformations and edges
Percentages of the individual deviation ranges and the average deviations