Shape optimization of axisymmetric preform tools in forging using a direct differentiation method - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal for Numerical Methods in Engineering Année : 2000

Shape optimization of axisymmetric preform tools in forging using a direct differentiation method

(1) , (1)
1

Résumé

A method for computing shape sensitivity in the frame of non-linear and non-steady-state forging is presented. Derivatives of toot geometry, velocity and state variables with respect to the shape parameters are calculated by a direct differentiation of discrete equations. Because of the important part played by the accuracy of finite element calculations, an efficient transfer method is used between meshes during remeshings and the contact algorithms are carefully differentiated. The resulting inverse design procedure is successfully applied to two industrial examples of forging of automobile parts, with fold-over and piping defects occurring during the intermediate designs. It makes it possible to suggest reasonable preform shapes, with or without any available knowledge of the forging process

Dates et versions

hal-00536463 , version 1 (16-11-2010)

Identifiants

Citer

Daniel Vieilledent, Lionel Fourment. Shape optimization of axisymmetric preform tools in forging using a direct differentiation method. International Journal for Numerical Methods in Engineering, 2000, 52 (11), p.1301-1321. ⟨10.1002/nme.256⟩. ⟨hal-00536463⟩
140 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More