玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (12): 5-10.

• 基础研究 •    下一篇

基于遗传算法的开孔复合材料层合板铺层优化

郭琰1, 黄斌2*, 钱征华3   

  1. 1.宁波大学科学技术学院,宁波315211;
    2.宁波大学机械工程与力学学院,宁波315211;
    3.南京航空航天大学机械结构力学及控制国家重点实验室,南京210016
  • 收稿日期:2018-04-08 出版日期:2018-12-28 发布日期:2018-12-28
  • 通讯作者: 黄斌(1987-),男,博士,讲师,主要研究方向为复合材料轻量化设计与磁电材料,huangbin@nbu.edu.cn。
  • 作者简介:郭琰(1988-),女,硕士,助教,主要从事复合材料轻量化设计与应用方面的研究。
  • 基金资助:
    国家自然科学基金(11702150);机械结构力学及控制国家重点实验室开放课题(MCMS-0516Y01);宁波市自然科学基金(2016A610056);宁波大学校科研基金(XYL17019)

OPTIMIZATION OF LAYUP STACKING SEQUENCE IN COMPOSITE LAMINATE WITH CENTRAL HOLE BASED ON GENETIC ALGORITHM

GUO Yan1, HUANG Bin2*, QIAN Zheng-hua3   

  1. 1.College of Science & Technology, Ningbo University, Ningbo 315212, China;
    2.Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China;
    3.State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2018-04-08 Online:2018-12-28 Published:2018-12-28

摘要: 针对开孔复合材料层合板铺层角度的优化设计问题,应用遗传算法以铺层角度为参数进行优化计算,并以一阶固有频率最大化为设计目标。开孔板的固有频率求解通过基于独立坐标耦合法的瑞利里兹法进行,再用遗传算法随机搜索获得一阶频率最大时的铺层角度。考虑了板的层数、孔大小、长宽比、边界条件等因素对优化的铺层角度影响。最后通过优化计算表明,对于方形版,层数和开孔大小不影响最优铺层,而长宽比对最优铺层角度影响重大。

关键词: 层合板, 孔, 铺层优化, 遗传算法, 一阶频率

Abstract: The Genetic Algorithm (GA) was applied to conduct the optimal design of layup stacking sequence in laminate with central hole, where the maximization of fundamental natural frequency was selected as the objective function. The fundamental frequency was calculated by using the Rayleigh Ritz method based on independent coordinate coupling method. The optimal layup stacking sequence was obtained by the GA for random search of layup stacking sequence. The effects of layer number, hole size, length to width ratio and boundary condition on the optimal layup stacking sequence were investigated. Finally, it is found that the layer number and hole size do not affect the optimal layup stacking sequence, while the length to width ratio has great influence on the optimal layup stacking sequence.

Key words: laminate, hole, layup optimization, Genetic Algorithm, fundamental frequency

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