Design method and system on Inverse welding variation of ship plate parts for welding distortion control

摘要

The present invention relates to an inverse deformation design system and method considering welding deformation of a member, and more particularly, to a reverse deformation design method and system considering member welding deformation of a bracket as a hull member.;In the present invention, in order to overcome the limitations of the existing method depending on the experience of the field worker and the skillful technique in correcting the result of complex thermal deformation, in the present invention, in consideration of the shape change of the member by welding heat distortion, The object of the present invention is to provide a method and system for designing an inverse deformation shape considering deformation of a design shape by using the amount of deformation due to the collected welding shrinkage and considering the deformation of a member by geometric deformation using an estimated deformation amount. have.;In order to accomplish the above object, the present invention provides a method comprising: collecting a deformation amount due to welding shrinkage of an actual bracket in a field;;Estimating a deformation amount due to welding shrinkage from the design shape using the collected deformation amount;;Performing preprocessing for extracting design data of a member from a ship CAD system and applying reverse deformation;;Deformation of the design shape by the estimated deformation value; And;And outputting the reverse-deformed design shape to the machining drawing.;According to an aspect of the present invention, there is provided a system including a database for storing an inversely deformed shape resu;A transformation rule for processing the measurement data of the welding shrinkage value database to generate a transformation rule;;A deformation operator module for deformation of a shape using a geometric constraint;;And a drawing generation module for generating a reverse deformation result drawing.;Welding, brackets, reverse deformation, shape information, estimated strain