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计算曲面壳体等效节点热载荷的新方法
  • ISSN号：0459-1879
  • 期刊名称：《力学学报》
  • 时间：0
  • 分类：O343.1[理学—固体力学;理学—力学]
  • 作者机构：大连理工大学工业装备结构分析国家重点实验室,大连116024
  • 相关基金：国家自然科学基金（11172055;11302040）; 中央高校基本科研业务费（DUT15RC（4）39）
作者： 刘云飞[1], 吕军[1], 白瑞祥[1], 高效伟[1]
关键词： 多边形网格, 功能梯度材料, 径向积分法, 边界单元法
中文摘要：

提出一种用多边形网格计算二维变系数问题域积分的新型边界单元法。首先,构造了由任意多边组成的多边形网格形函数,用于几何与物理量的插值;其次,用径向积分法将多边形域积分转换成沿多边形周边的线积分,有效解决了各类非规则多边形网格的单元积分难题;最后,三个有关功能梯度材料与结构的数值算例结果显示本文提出的算法和常规有限元相比误差小于1%,说明本文方法具有很高的精度,且由于其单元积分时无需对积分函数或者积分域进行三角化等额外处理,该方法具有很高的效率。

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期刊信息
  • 《力学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国力学学会 中国科学院力学研究所
  • 主编：魏悦广
  • 地址：北京市海淀区北四环西路15号中科院力学所内《力学学报》
  • 邮编：100190
  • 邮箱：lxxb@cstam.org.cn
  • 电话：010-62536271
  • 国际标准刊号：ISSN：0459-1879
  • 国内统一刊号：ISSN：11-2062/O3
  • 邮发代号:2-814
  • 获奖情况:
  • 1992年首届自然科技期刊一等奖,1996年国家自然科技期刊二等奖,2000年首届国家期刊奖
  • 国内外数据库收录:
  • 美国数学评论（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:13332