6σ Design for Pressurized Cylindrical Shells Based on RBF

Abstract

Abstract:

To obtain a reliable pressure hull structure, the 6σ design was introduced into the optimization of pressure hull. The influences of the uncertainty of material and dimension error when processing were fully taken into consideration. Based on the MDO platform iSIGHT, a reliable optimal plan involving 6σ was obtained. In order to reduce the calculation expense, a sufficiently accurate RBF model was used to replace the simulation program ANSYS when iterating, which not only ensured the accuracy but also saves the calculating cost.

Key words：

Key words: pressure hull optimization； 6&sigma, design； reliability； radical basis function(RBF) model

CLC Number:

U 663.1

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CHENG Yanxue1,PANG Yongjie1,YANG Zhuoyi1,FENG Liang2. 6σ Design for Pressurized Cylindrical Shells Based on RBF

[J]. Journal of Shanghai Jiaotong University, 2014, 48(04): 493-497.

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References

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