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中国工业与应用数学学会会刊
主管:中华人民共和国教育部
主办:西安交通大学
ISSN 1005-3085  CN 61-1269/O1

工程数学学报 ›› 2022, Vol. 39 ›› Issue (2): 319-329.doi: 10.3969/j.issn.1005-3085.2022.02.011

• • 上一篇    下一篇

基于遗传算法和复合二次径向基函数的复合材料层合板自由振动分析

李  琳1,   石  峰1,   项  松2,   赵为平2,   王艳冰2   

  1. 1. 沈阳开放大学数字化资源制作管理服务中心,沈阳 110003
    2. 沈阳航空航天大学辽宁省通用航空重点实验室,沈阳 110136
  • 出版日期:2022-04-15 发布日期:2022-06-15
  • 基金资助:
    辽宁省自然科学基金 (20180550824);辽宁省教育厅重点攻关和服务地方项目 (JYT19004);航空科学基金项目 (20173254006).

Free Vibration Analysis of Laminated Composite Plates by the Genetic Algorithm and Multiquadrics Radial Basis Function

LI Lin1,   SHI Feng1,   XIANG Song2,    ZHAO Weiping2,   WANG Yanbing2   

  1. 1. Digital Resource Production Management Service Center, Shenyang Open University, Shenyang 110003
    2. Liaoning General Aviation Key Laboratory, Shenyang Aerospace University, Shenyang 110136
  • Online:2022-04-15 Published:2022-06-15
  • Supported by:
    The Natural Science Foundation of Liaoning Province (20180550824); the Key Research and Local Service Project of Education Depertment of Liaoning Province (JYT19004); the Aviation Science Foundation Project (20173254006).

摘要:

为了提高复合材料层合板自由振动分析的精度,采用无网格径向基配点法分析复合材料材料层合板的自由振动问题,径向基函数的形状参数对计算精度有很大影响。利用遗传算法对复合二次径向基函数的形状参数进行优化,用优化后的形状参数的复合二次径向基函数计算复合材料层合板的固有频率,计算结果与文献中的结果具有较好的一致性。遗传算法在形状参数优化方面具有很大的潜力,所提出的方法具有较高的计算精度。

关键词: 无网格, 复合二次径向基函数, 遗传算法, 复合材料层合板, 自由振动

Abstract:

In order to improve the accuracy of free vibration analysis of laminated composite plate, free vibration of laminated composite plates is analyzed by the meshless radial basis function collocation method. The shape parameter of radial basis function has important effect on the accuracy of calculation. The genetic algorithm is utilized to optimize the shape parameter of multiquadrics radial basis function. Natural frequencies of laminated composite plates are calculated by the multiquadrics radial basis function with optimal shape parameter and compared of the existing literatures. The numerical results are consistent with the results with the results. The genetic algorithm has great potential in shape parameter optimization. The proposed method has higher calculation precision.

Key words: meshless, multiquadrics radial basis function, genetic algorithm, laminated composite plate, free vibration

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