Development of Accuracy Evaluation System for Curved Shell Plates by Laser Scanners

An accuracy evaluation system for a curved shell plate was developed. In this system, the point cloud data of a curved shell plate measured by a laser scanner and the design data are registered based on the edges of shell plates. The displacement errors that refer to the deviation distances based on the design surface are evaluated and visualized by a color map. In addition to the development of the system, some actual curved shell plates are evaluated and visualized by this system. Some correlations between the distribution of the errors, the fabrication process, and effectiveness of feeding back the analysis generated by the system are illustrated.