Modal analysis and stiffness optimization: the case of ceramic tile finishing

A. Pavlović, C. Fragassa, F. Ubertini, A. Martini (UDC: 621.01:666.75) 

Considering the customers’ demand for high quality products, surface finishing represents an extremely delicate phase in the production of ceramic tiles. In these terms, stiffer machinery can be considered a practical response to the need of accurate manufacturing processes. This research is focused on investigating and improving the (elasto)dynamic behaviour of a large machine tool, used for polishing and lapping ceramic tiles. A modal analysis was realized comparing natural frequencies in respect to different design solutions. The stiffness optimization was obtained by changing the structural design.