Journal of Shanghai Jiaotong University ›› 2014, Vol. 48 ›› Issue (04): 493-497.

• Communication and Transportation • Previous Articles     Next Articles

6σ Design for Pressurized Cylindrical Shells Based on RBF
 

CHENG Yanxue1,PANG Yongjie1,YANG Zhuoyi1,FENG Liang2
  

  1. (1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;2. College of Engineering, Ocean University of China, Qingdao 266100, Shandong, China)
  • Received:2013-09-18

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: