Abstract: This invention includes the generation of forming information and its manipulation scheme as a method to form curved plates in ship hull-pieces. This invention consists of three components as follows: one is to construct and utilize a database which includes data about flat plates, objective curved plates, plates which are being formed, and their forming information, another is to infer new forming information with an artificial neural network system, and the third is to obtain forming information through calculating in-plane and bending strains. In the third, initial forming information is obtained by calculating strains from relationship between flat plates and objective curved plates. And new forming information is yielded through calculating the strains from relationship between partially formed curved plates and objective curved plates.

Abstract: This invention relates to an automatic machine to form curved plates (100) of ship's hull-pieces in a shipbuilding process. This automatic machine has the following devices, ajig table (10) to support steel plates, a heating device (21) including a torch to heat one side of steel plates up to the required temperature (about 800 C.), a cooling device to cool down the heated plates by spraying out coolant from several nozzles (32), a measuring device (41) to measure the formed plates set up beside the cooling device. The measuring gauge (41) transmits data to the control system through A/D converter (42). A driving device includes a transverse guide rail (51), a longitudinal guide rail (52), motors, chains and belts, all of which enable the torch, cooler and measuring gauge to move in accordance with commands of the control system.