Virtual Assembly Technology Using 3D Laser Measurement and Finite Element Analysis Contributing to Shortening Periodic Inspection Period of Steam Turbines
In periodic inspections of steam turbines, temporary assembly work to assemble the turbine is carried out to adjust the alignment and set the clearances between the stationary parts and the rotating parts to appropriate values in order to maintain turbine performance and prevent rubbing. From the viewpoint of efficient turbine operation, however, it is necessary for the temporary assembly work, which takes four to seven days for each turbine casing, to be eliminated.
This report presents a technology that shortens the periodic inspection period by replacing the temporary assembly work with virtual assembly that combines 3D laser measurement and finite element analysis.
