首页> 外文期刊>Mathematical Problems in Engineering >Combining Legendre's Polynomials and Genetic Algorithm in the Solution of Nonlinear Initial-Value Problems
【24h】

Combining Legendre's Polynomials and Genetic Algorithm in the Solution of Nonlinear Initial-Value Problems

机译:求解非线性初值问题,结合勒让德多项式和遗传算法

获取原文
获取原文并翻译 | 示例
           

摘要

This work develops a method for solving ordinary differential equations, that is, initial-value problems, with solutions approximated by using Legendre's polynomials. An iterative procedure for the adjustment of the polynomial coefficients is developed, based on the genetic algorithm. This procedure is applied to several examples providing comparisons between its results and the best polynomial fitting when numerical solutions by the traditional Runge-Kutta or Adams methods are available. The resulting algorithm provides reliable solutions even if the numerical solutions are not available, that is, when the mass matrix is singular or the equation produces unstable running processes.
机译:这项工作开发了一种解决普通微分方程(即初值问题)的方法,其解决方案是使用勒让德多项式近似的。基于遗传算法,提出了多项式系数调整的迭代程序。当通过传统的Runge-Kutta或Adams方法获得数值解时,可以将该程序应用于几个示例,以提供其结果与最佳多项式拟合之间的比较。即使没有数值解,即当质量矩阵奇异或方程产生不稳定的运行过程时,生成的算法也提供了可靠的解。

著录项

  • 来源
    《Mathematical Problems in Engineering》 |2011年第3期|p.1-20|共20页
  • 作者单位

    Escola Politecnica da Universidade de Sao Paulo, Avenida Prof. Luciano Gualberto, travessa 3, No. 158, 05508-900 Sao Paulo, SP, Brazil;

    Escola Politecnica da Universidade de Sao Paulo, Avenida Prof. Luciano Gualberto, travessa 3, No. 158, 05508-900 Sao Paulo, SP, Brazil;

    Escola Politecnica da Universidade de Sao Paulo, Avenida Prof. Luciano Gualberto, travessa 3, No. 158, 05508-900 Sao Paulo, SP, Brazil;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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