基于双向进化遗传算法的管道钢结构支架优化设计  

Optimal Design of Pipeline Steel Structure Support Based on Bidirectional Evolutionary Genetic Algorithm

作　　者：李瑞 李震 杨靖庭 刘连文 范金鹏 LI Rui;LI Zhen;YANG Jingting;LIU Lianwen;FAN Jinpeng(The Third Construction Co.,LTD.,China Construction Eighth Engineering Bureau,Nanjing 210000,China)

机构地区：[1]中建八局第三建设有限公司,南京210000

出　　处：《结构工程师》2023年第1期169-175,共7页Structural Engineers

摘　　要：为进一步优化管道钢结构支架,提高管道支架的稳定性,基于渐进结构优化算法、双向渐进结构优化算法以及遗传算法提出了双向进化遗传算法,实现管道钢结构支架优化设计。以待优化的管道钢结构支架初始结构为出发点,以支架单元的应变能灵敏度分析为基础,利用遗传算法完成算法的双向进化。通过有限元分析软件ANSYS内的参数化编程语言APDL完成算法编程并模块化算法程序,为得到合理、经济的管道钢结构支架优化设计准则,对其展开拓扑优化设计,按照支架的优化结果与加工工艺提出管道钢结构支架的改进策略,减少支架质量的同时分析验证优化后的支架结构。验证结果表明,优化设计后的管道钢结构支架,其应力、变形量以及模态等均符合使用需求。In order to further optimize the pipe steel structure support and improve the stability of the pipe support,a bidirectional evolutionary genetic algorithm is proposed based on evolutionary structural optimization algorithm,bidirectional evolutionary structural optimization algorithm and genetic algorithm to realize the optimization design of the pipe steel structure support.Based on the initial structure of the pipe steel structure support to be optimized and the strain energy sensitivity analysis of the support element,the genetic algorithm is used to complete the bidirectional evolution of the algorithm.Through the parametric programming language APDL in the finite element analysis software ANSYS,the algorithm programming and modular algorithm program are completed.In order to obtain reasonable and economic optimization design criteria of pipe steel structure support,the topology optimization design is carried out.According to the optimization results and processing technology of the support,the improvement strategy of pipe steel structure support is put forward.At the same time,the optimized support structure is analyzed and verified.The verification results show that the stress,deformation and model of the optimized pipe steel structure support meet the use requirements.

关 键 词：渐进结构优化 遗传算法 双向进化 结构拓扑优化 ANSYS APDL 

分 类 号：TU391[建筑科学—结构工程]