축대칭 냉간단조의 유한요소해석에서 퍼지로직을 이용한 전방투사법 Forward Projection using Fuzzy Logic in Axisymmetric Finite Element Simulation for Cold Forging

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 245
  • Download : 0
In the present paper forward projection is proposed as a new approach to determine the preform shape in rib-web type forging. In the forward projection technique an optimal billet is determined by applying some mathematical relationship between geometrical trials in the initial billet shape and the final products. In forward projection a volume difference between the desired product shape and the final computed shape obtained by the rigid-plastic finite element method is used as a measure of incomplete filling of working material in the die. At first linear inter-/extrapolation is employed to find a proper trial shape for the initial billet and the method is successfully applied to some cases of different aspect ratios of the initial billet. However, when the initial guesses are not sufficiently near the optimal value linear inter-/extrapolation does not render complete die filling. For more general application, a fuzzy system is used in the forward projection technique in order to determine the initial billet shape for rib-web type forging. It has been thus shown that the fuzzy system is more reliable for the preform design in the rib-web type forging process.
Publisher
대한기계학회
Issue Date
1992-08
Language
Korean
Citation

대한기계학회논문집A, v.16, no.8, pp.1468 - 1484

ISSN
1226-4873
URI
http://hdl.handle.net/10203/66494
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0