• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2024, Vol. 60 ›› Issue (19): 199-211.doi: 10.3901/JME.2024.19.199

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Optimization Design of Stacking Sequence for Variable Thickness Composite Structure Based on Improved Stacking Sequence Table Method

PENG Xiang1,2, CHEN Kenan1, WANG Mingbo1, Yi Bing3, LI Jiquan1,2, JIANG Shaofei1   

  1. 1. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023;
    2. Taizhou Institute, Zhejiang University of Technology, Taizhou 318014;
    3. School of Traffic and Transportation Engineering, Central South University, Changsha 410083
  • Received:2023-10-14 Revised:2024-07-25 Online:2024-10-05 Published:2024-11-27

Abstract: Variable thickness composite structures can achieve variable stiffness characteristics by stacking design in sub-regions with different thicknesses.For considering manufacturing requirements and reducing the randomness in generation of stacking sequences, the optimization design methodology of stacking sequence for variable thickness composite structure is proposed based on improved stacking sequence table method.An improved stacking sequence table method is proposed, which contains layer thickness, layer sequence in the thinnest sub region, layer insertion position, and layer insertion angle, for parameterizing the stacking sequence of variable thickness composite structures.An optimization algorithm of stacking sequence considering manufacturing constraints is established.Through stacking design of the thinnest sub region, automatic generation of stacking sequences from the thinnest sub region to the thickest sub region, and optimization design of stacking sequence in multiple sub-regions, the optimum stacking sequences is achieved with the lightweight objective and manufacturing constrains.The stacking sequences of the classic 18-region horseshoe structure are optimized.The total weight is reduced to 28.31 kg, and more manufacturing constraints are considered, which can demonstrate the effectiveness of the proposed algorithm.

Key words: composite structure, variable thickness, stacking sequence, optimization design

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