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基于萤火虫算法的螺栓连接结构布局优化
引用本文:王长飞,周焕林.基于萤火虫算法的螺栓连接结构布局优化[J].机床与液压,2022,50(6):144-147.
作者姓名:王长飞  周焕林
作者单位:合肥工业大学土木与水利工程学院,安徽合肥230009
摘    要:螺栓连接是工程结构的重要连接方式。优化螺栓连接结构的布局可以提高结构的力学性能。建立螺栓连接结构的有限元参数化模型,对连接板和螺栓进行有限元力学分析。运用萤火虫算法对螺栓布局进行优化设计,得到合理的螺栓排布尺寸,减小了孔周应力。当螺栓数量为4个时,与初始设计方案相比,优化后螺栓的分布更加合理,最大孔周应力明显下降。当螺栓数量为6个时,对三排和双排的初始设计方案进行优化,得到相同的双排最优螺栓布局。数值算例表明了萤火虫算法在螺栓连接结构布局优化中的有效性,研究结果可供机械设计参考。

关 键 词:螺栓布局优化  萤火虫算法  参数化  有限元分析

Layout Optimization of Bolt Connection Structure Based on Firefly Algorithm
WANG Changfei,ZHOU Huanlin.Layout Optimization of Bolt Connection Structure Based on Firefly Algorithm[J].Machine Tool & Hydraulics,2022,50(6):144-147.
Authors:WANG Changfei  ZHOU Huanlin
Abstract:Bolted connection is an important connection mode in engineering structures.The layout optimization of bolted connection structure can improve its mechanical performance.The finite element parameterized model of the bolted connection structure was established.The finite element mechanical analyses of the connection plates and bolts were carried out.The firefly algorithm was applied to optimize the bolt layout.The reasonable bolt layout was obtained.The maximum stress around the bolt hole was reduced.When the number of the bolts was 4,compared with the initial design,the optimized bolt layout is more reasonable and the maximum stress around the hole decreased to a great degree.When the number of the bolts was 6,the initial design schemes with three rows and two rows bolts were optimized.The optimized layout of the two cases was the same as the bolt layout with two rows.Numerical examples demonstrate the effectiveness of the firefly algorithm to solve the problem of bolt layout design. The research results can be used as reference for mechanical design.
Keywords:Bolt layout optimization  Firefly algorithm  Parameterization  Finite element analysis
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