飞机橡皮囊成形零件毛坯精确预示方法研究

doi:10.7527/S1000-6893.2013.0105

Abstract

Abstract:

Rubber bladder forming is one of the main forming methods for aircraft sheet metal parts in which the prediction of initial blank shape is difficult. In accordance with the technology characteristics of rubber bladder forming, a fast prediction method is proposed for the initial blank shape of a rubber bladder formed part based on one-step inverse forming finite element method. Firstly, the designed aircraft sheet metal part is treated as the final configuration; then a quick reverse simulation is carried out to obtain the initial blank by the one-step inverse finite element method. Finally, the blank outline from the above method is applied to real rubber bladder forming manufacture. The experimental results demonstrate that this method can predict the precise initial blank shape for a rubber bladder forming part.

Key words: rubber bladder forming, sheet metal part, blank, one-step inverse forming, finite element method

CLC Number:

V261.2⁺8

ZHU Minghua, WANG Wenbin, BAO Yidong, HUANG Xiang. Research on Precise Blank Prediction Method of Aircraft Part by Rubber Bladder Forming[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, doi: 10.7527/S1000-6893.2013.0105.

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Research on Precise Blank Prediction Method of Aircraft Part by Rubber Bladder Forming

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