Using photogrammetric modeling in reverse engineering applications: Damaged turbocharger example

Engineering in different areas such as design, manufacture, quality control, research and development, damage analysis, etc. increasingly needs fast, detailed accurate three-dimensional (3D) documentation of mechanical parts. Moreover, not only the production design processes, but also post-production stages, details parts may need to be documented exact dimensions. Identifying an assembly's components their interrelationships, producing new digital 2D-3D models assembly or parts, rebuilding a part assembly, examining ensure tolerances, improving performance if there are any, determining damaged sections some essential applications reverse engineering. The purpose this article is demonstrate implementation low cost scanning system create copies In study, mobile phone-based photogrammetric technique applied obtain 3D model turbocharger car. Firstly, was dismantled into two Both were individually modeled then assembled together. Thus, turbo wings under covers detail. Accuracy analysis terms dimensions performed obtained model. Finally, simple CFD application made on section compressor wheel turbocharger. analyzes showed that less than 0.5 mm accuracy can without difficulty.