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Minimizing dynamic effects while using dynamic codes to simulate binder‐set processes
Author(s) -
Hu Weilong
Publication year - 2003
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.634
Subject(s) - blank , stamping , deformation (meteorology) , inertial frame of reference , process (computing) , set (abstract data type) , dynamic simulation , oscillation (cell signaling) , computer science , code (set theory) , mechanical engineering , structural engineering , engineering , simulation , materials science , physics , quantum mechanics , biology , composite material , genetics , programming language , operating system
When using a dynamic code to simulate a quasi‐static job, the dynamic effect is a very serious problem, such as in the binder set simulation in stamping process design. Dynamic effects generally consist of two different acting types, oscillation due to the kinetic energy of the blank and additional deformation thanks to the inertial action. For the binder set simulation, the inertial effect is more apt to change the simulation result due to less‐constrained forming of the blank. Light effect varies the magnitude of blank deformation. Seriousness shall result in the deformation type change of the forming blank, which could make simulating results useless for real‐world application. To aim at the dynamic problems, especially in the inertial effect, several useful and practical ways have been proposed in this paper. Some parameters that we can use to minimize dynamic effects during a simulation effectively include: the velocity type of the travelling part, damping, defining the travelling part and imposing additional loads on the forming blank. Finally, four associated simulation cases have been discussed to show how these enhancing methods can be applied in real stamping production. Copyright © 2003 John Wiley & Sons, Ltd.