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Abstract: Research on the multiple objective preform design
optimization is put forward using the sensitivity analysis method based
on FEM. The shape of the final forging and its deformation uniformity
are considered into the multiple objective function. The objective is to
optimize the shape and the deformation uniformity of the final forging
at the same time so a more high quality of the final forging can be
obtained. The total objective is assembled. The form of the total
objective function and the sub-objective function are given. The
sensitivity equations of the total objective function and the
sub-objective functions with respect to the design variables are
developed. Using this method, the preform die shape of an H-shaped
forging process is designed. The optimization results are very
satisfactory.
Key words: Forging Preform Sensitivity Shape Uniformity
CLC No: TG311
中国博士后科学基金(中博基[2000]23)及山东省优秀中青年科学家科研奖励基金资助项目.
Received 20010926, received
in revised form 20011212
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