5 research outputs found
解矩形薄板弯曲问题的二元B样条有限元法
本文提出了一种解薄板弯曲问题的二元B样条有限元法.该方法相应的系数总矩阵十分简单,不需叠加而一次成型,其半带宽以块计仅为2,子块半带宽至多为2.由于二元二次样条在三角形单元上仅有6个系数,使得总体自由度数目大大小于其它各种有限元法,其计算量自然随之下降,而所得的解还是C1协调的
Research on adaptive improved harmony-simplex evolutionary algorithm
针对和声搜索算法的不足,提出了一种自适应改进和声—单纯形进化算法(AIHSEA)。通过在新算法中加入变异策略对和声微调进行改进来增强算法的鲁棒性;适时执行单纯形算子增加群体搜索的方向性来加快搜索;采用自适应参数HMCR、PAR和BW调节全局和局部搜索。采用六个标准的优化算法测试函数对AIHSEA进行测试,并与HS、IHS和GHS算法进行对比,仿真结果表明AIHSEA算法具有较强的精确寻优和跳出局部最优的能力。For the purpose of avoiding the disadvantage of harmony search algorithm, this paper proposed an adaptive im- proved harmony pattern search(AIHSEA) algorithm. In AIHSEA, it added a mutation strategy to enhance the robustness of HS. In order to increase the directivity of the harmony search, it implemented the simplex method timely. It adjusted its global and local searches by using adaptive parameters HMCR, PAR and BW. Finally, AIHSEA was tested by six standard bench- mark functions and contrasted with HS, HIS and GHS algorithm. The test results show the favorable abilities of accuracy and escaping local minimums.国家自然科学基金资助项目(60873118,60973147);国家教育部博士点基金项目(20090009110006);广西科学研究与技术开发项目(栏科次11107006-30);广西自然科学基金资助项目(2010GXNSFB013052);广西重点实验室项目(HCIC201105);中国—东盟研究中心项目(20120139);广西高等学校科研项目(201204LX085);广西民族大学科研资助项目(2011MDQN041
Solvability for Generalized Mixed Variational Inequalities with Perturbation
本文主要研究扰动的广义混合变分不等式解的存在性问题。对集值映射引入2种扰动方式:一种是通过连续的单值映射进行扰动;另一种是通过约束集的闸锥内部的向量进行扰动。在较弱的强制性条件下证明了扰动问题解的存在性。本文的结果在经济领域的某些价格均衡模型中有潜在的应用价值,推广和改善了一些新近文献的相应结果。The existence of solutions for a generalized mixed variational inequality with perturbation is investigated in this paper. Two perturbed ways of a set valued mapping are introduced: one is perturbed by a continuous and single-valued mapping,and the other is perturbed by a vector in the interior of the barrier cone of the constrained set. Under rather weak conditions, it is shown that the generalized mixed variational inequality perturbed by two ways mentioned above has a solution. The main results may be used in some price equilibrium model in the field of economics, which generalize and improve some known results.国家自然科学基金(11561008); 广西自然科学基金(2014GXNSFAA118006); 广西高校优秀中青年骨干教师培养工程(桂教人[2014]39号); 广西八桂学者专项(WBS-2014-04); 广西民族大学相思湖青年学者(重点)创新团队(民大2015-13-02
Adaptive Improved Harmony Pattern Search Algorithm
由于基本和声搜索算法存在不足,本文提出一种自适应改进和声模式搜索算法(AIHPS).在新算法中加入变异策略对和声微调进行改进,来增强算法的鲁棒性;适时执行模式搜索来增加和声搜索的方向性,来加快搜索;利用自适应参数HMCR、PAR和BW调节全局和局部搜索.利用6个标准的优化算法测试函数对AIHPS算法进行测试,并与HS、IHS和GHS等多个算法进行实验对比,实验结果表明新算法具有跳出局部最优和较强的精确寻优能力. For the purpose of avoiding the disadvantage of harmony search algorithm, an adaptive improved harmony pattern search ( AIHPS ) algorithm is proposed. In AIHPS, a mutation strategy is added to enhance the robustness of HS. In order to increase the directivity of the harmony search, the pattern search is implemented timely. Its global and local searches are adjusted by using adaptive parameters HMCR, PAR and BW. Finally, AIHPS algorithm is tested by six standard benchmark functions and contrasted with HS, HIS and GHS algorithm. The test results show the favorable abilities of escaping local minimums and accuracy.国家自然科学基金项目(60873118,60973147)资助;教育部博士点基金项目(20090009110006)资助;广西重点实验室项目(HCIC201105)资助;广西科学研究与技术开发项目(桂科攻11107006-30)资助;广西自然科学基金项目(2010GXNSFB013052)资助;广西高等学校科研项目(201204LX085)资助;中国-东盟研究中心项目(20120139)资助;广西民族大学科研项目(2011MDQN041)资
A Swarm Pattern Global Search Algorithm
由于模式搜索算法易陷入局部极值且效率低.受群智能算法的启发,结合模式搜索算法,提出一种全局优化算法——群模式全局搜索算法.该算法引入群智能的思想,包含4个操作:模式探测、模式移动、模式学习、模式扩散,具有较强的局部-全局搜索能力,且收敛速度快、稳定性好.对benchmark函数集进行仿真并与其它多个算法对比,实验结果证实该算法的有效性.广西自然科学基金项目(No.2010GXNSFB013052);广西科学研究与技术开发项目(No.桂科攻11107006-30);广西重点实验室科研项目(No.HCIC201105);广西高等学校科研项目(No.201204LX085)资
