基于改进蜣螂算法的塔式起重机塔身结构优化  

Tower structural optimization of tower crane based on improved dung beetle optimizer

作　　者：李宏娟 师泽宁 高崇仁[1] 田星宇 陈平庚 Li Hongjuan;Shi Zening;Gao Chongren;Tian Xingyu;Chen Pinggeng

机构地区：[1]太原科技大学机械工程学院,太原030024

出　　处：《起重运输机械》2024年第20期29-36,共8页Hoisting and Conveying Machinery

基　　金：技术开发项目“塔式起重机结构快速设计系统开发”(2024110)。

摘　　要：针对塔式起重机结构复杂、设计周期长、传统设计过于保守、自重较大等问题,文中提出一种改进的蜣螂算法,对塔式起重机塔身结构进行优化。为了避免蜣螂算法陷入局部最优,通过分段线性映射方法初始化种群及引入Levy飞行策略更新偷窃位置对其算法予以改进,以某型在役塔式起重机为例进行有限元建模及静力学分析,得出塔身结构优化的强度、刚度、稳定性约束条件。结果表明:改进蜣螂算法优化后的塔身结构质量大幅度降低,既满足设计的安全可靠性要求,又达到经济实用的目的。Considering the complex structure,long design cycle,conservative traditional design and heavy weight of tower crane,an improved dung beetle optimizer is proposed in this paper to optimize the tower structure of tower crane.To avoid local optimum only while adopting the dung beetle optimizer,the algorithm was improved by initializing the swarm by piecewise linear mapping and introducing Levy flight strategy to update the stealing position.Taking a certain type of inservice tower crane as an example,the finite element modeling and static analysis were carried out,and the constraints of strength,stiffness and stability of tower structure optimization were obtained.Results show that with the improved dung beetle optimizer,the weight of the tower was greatly reduced,which not only meets the requirements of safety and reliability,but also brings economic and practice benefits.

关 键 词：塔式起重机 塔身 改进蜣螂算法 结构优化 有限元模型 

分 类 号：TH213.3[机械工程—机械制造及自动化]