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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2011, Vol. 32 ›› Issue (4): 636-648.doi: CNKI:11-1929/V.20101130.1743.000

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles     Next Articles

Model Updating for Multi-layered Carbon Fiber Honeycomb Sandwich Panel

QIN Yuling1, KONG Xianren1, LUO Wenbo2   

  1. 1. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China;
    2. China Academy of Space Technology, Beijing 100086, China
  • Received:2010-07-01 Revised:2010-09-30 Online:2011-04-25 Published:2011-04-25

Abstract: The honeycomb sandwich panel is the main load-carrying structure of modern aircraft. Linear-and-Gaussian combined kernel function support vector machine (SVM) response surface and the group-control-based improved particle swarm optimization (IPSO) algorithm are proposed in this paper through an analysis of various response surfaces, and a finite element model (FEM) of the multi-layered carbon fiber honeycomb sandwich panel is constituted in ANSYS using SHELL91. The non-updated parameters are chosen by orthogonal design and F-test, which are then employed to constitute the Linear-and-Gaussian response surface to simulate the relationship between the structure parameters and the responses, and then verify the validity of the response surface model. The group-control-based IPSO algorithm is employed to update the non-updated parameters and the updated parameters are substituted into the non-updated FEM. A comparison of the modal frequencies of the non-updated and updated FEM and the benchmark FEM proves the reappearance and prediction ability of the updated FEM.

Key words: response surface, multi-layered carbon fiber honeycomb sandwich panel, combined kernel function support vector machine, group-control strategy, particle swarm optimization algorithm

CLC Number: