首页> 外文期刊>Composite Structures >Optimal design of composite plates with discrete variable stiffness
【24h】

Optimal design of composite plates with discrete variable stiffness

机译:离散变刚度复合板的优化设计

获取原文
获取原文并翻译 | 示例

摘要

A new optimization technique of composite plates with discrete varying stiffness is proposed. It consists of three main steps. Analysis of optimal continuous varying bending and shear stiffness of plate is done in the first step by minimizing structural compliance and stress field differences. Size optimization of discrete domains is done in the second step by solving minimization problem with a Genetic Algorithm. Dimension optimization of plates internal structure is done by previously trained feed-forward artificial neural network in the third step. A simply supported rectangular plate with uniformly distributed load and multispan plate with concentrated loads are optimized by the using of proposed method. The deflection of optimized plate could be reduced up to 50%, and average increase of strength to mass ratio is about 20%.
机译:提出了一种新的刚度离散的复合板优化技术。它包括三个主要步骤。第一步,通过最小化结构顺应性和应力场差异,对板的最佳连续变化的弯曲和剪切刚度进行分析。第二步通过使用遗传算法解决最小化问题,完成离散域的大小优化。在第三步中,通过预先训练的前馈人工神经网络来完成板内部结构的尺寸优化。利用所提出的方法,对具有均布载荷的简支矩形板和集中载荷的多跨板进行了优化。优化后的板的挠度可以减少多达50%,强度与质量之比的平均增加约为20%。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号