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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

37卷

期数:

2020年05期

页码:

51-61

栏目:

出版日期:

2020-09-30

文章信息/Info

Title:

An Efficient Optimal Design Method for Dampers

文章编号:

1673-2049(2020)05-0051-11

作者:

李 钢,翟子杰,余丁浩

大连理工大学 海岸和近海工程国家重点实验室,辽宁 大连 116024

Author(s):

LI Gang, ZHAI Zi-jie, YU Ding-hao

State Key Laboratory of Costal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

关键词:

消能减震结构;  隔离非线性方法;  阻尼器;  优化设计;  遗传算法

Keywords:

energy dissipation structure;  inelasticity-separated finite element method;  damper;  optimal design;  genetic algorithm

分类号:

TU352.1

DOI:

10.19815/j.jace.2019.05106

文献标志码:

A

摘要:

以隔离非线性方法为基础,并对基于种群的可行性遗传算法进行改进,提出了一种高效的阻尼器优化设计方法。首先基于隔离非线性方法基本思想,分别推导了附加位移型和速度型阻尼器消能减震结构的隔离非线性控制方程; 随后,采用基于种群可行性约束优化遗传算法对其中的初始种群生成方法及交叉、变异、选择算子进行改进,以提高算法在可行域边界附近的搜索能力; 最后,通过对某钢结构增设金属阻尼器进行工程加固,验证了该方法的准确性和高效性。结果表明:新方法拓展了隔离非线性方法的应用范围,提高了遗传算法在可行域边界附近的搜索能力和设计中的计算效率,是一种高效的阻尼器优化设计方法。

Abstract:

Based on inelasticity-separated finite element method(IS-FEM)and the improvement of genetic algorithm based on population feasibility, an efficient optimal design method for dampers was proposed. Firstly, based on the basic idea of IS-FEM, the isolation nonlinear control equations of structure equipped with displacement-based dampers and velocity-based dampers were derived respectively. Then, the constrained optimization genetic algorithm based on population feasibility was adopted and the population initialization method, crossover, mutation and selection operators were modified to improve the searching ability near feasible region boundary. Finally, a steel structure retrofit project with metallic yielding dampers was taken as example to verify the accuracy and efficiency of the proposed method. The results show that the new method expands the application range of IS-FEM, improves the search ability of genetic algorithm near the boundary of feasible region, and improves the calculation efficiency in design. The proposed method is an efficient optimization design method of damper.

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相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2019-10-11
基金项目:国家重点研发计划项目(2018YFD1100404); 国家自然科学基金项目(51878112);
大连市高层次人才创新支持计划项目(2017RD04)
作者简介:李 钢(1979-),男,辽宁葫芦岛人,教授,博士研究生导师,工学博士,E-mail:gli@dlut.edu.cn。

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更新日期/Last Update: 2020-10-15