基于多因素动态删除率的改进BESO方法研究  

Research on Improved BESO Method Based on Multi-factor Dynamic Element Removal Ratio

作　　者：刘沐宇[1,2] 吴航宇 刘齐民 张强[3] LIU Mu-yu;WU Hang-yu;LIU Qi-min;ZHANG Qiang(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Roadway Bridge&Structure Engineering,Wuhan University of Technology,Wuhan 430070,China;China Railway Major Bridge Reconnaissance and Design Institute Co Ltd,Wuhan 430050,China)

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉430070 [3]中铁大桥勘测设计院集团有限公司,武汉430050

出　　处：《武汉理工大学学报》2023年第11期86-91,共6页Journal of Wuhan University of Technology

摘　　要：给出了结构体积分数和应力均匀程度指标,构造了多因素动态删除率计算公式,提出了基于多因素动态删除率的改进BESO方法并结合算例进行验证。结果表明,相比于固定删除率和单因素动态删除率BESO方法,基于多因素动态删除率的改进BESO方法计算效率最高、稳定性最好,为提升BESO方法的计算性能提供了可行路径。The indexes of structural volume fraction and stress uniformity were given,the formula of multi-factor dynamic removal ratio was constructed,and an improved BESO method based on multi-factor dynamic removal ratio was proposed and verified by an example.The results show that,compared with BESO methods with fixed removal ratio and single-factor dynamic removal ratio,the improved BESO method based on multi-factor dynamic removal ratio has the highest computational efficiency and the best stability,providing a feasible path to improve the performance of BESO method.

关 键 词：BESO 多因素动态删除率 结构体积分数 结构应力均匀程度 

分 类 号：O302[理学—力学]