基于集成优化的塔机臂架结构轻量化设计分析  

ANALYSIS OF LIGHTWEIGHT DESIGN OF TOWER CRANE BOOM STRUCTURE BASED ON INTEGRATED OPTIMIZATION

作　　者：魏让丽 李玲[1] 郑朝荣[2] 雷鸣 WEI Rangli;LI Ling;ZHENG Chaorong;LEI Ming(School of Civil Engineering and Transportation,Northeast Forestry University,Harbin 150040,China;School of Civil Engneering,Harbin Institute of Technology,Harbin 150090,China;Jingyang Station of Construction Engineering Quality and Safety Supervision,Deyang City,Sichuan Province,Sichuan Deyang 618000,China)

机构地区：[1]东北林业大学土木与交通学院,哈尔滨150040 [2]哈尔滨工业大学土木工程学院,哈尔滨150090 [3]四川省德阳市建设工程质量安全监督旌阳站,四川德阳618000

出　　处：《低温建筑技术》2025年第1期57-61,共5页Low Temperature Architecture Technology

基　　金：中建二局科技资助(2021ZX080001-02)。

摘　　要：为提升塔机结构的整体性能,实现节能减排,文中采用ANSYS软件建立QTP300(7526)型核电用塔机臂架的三维有限元模型,并采用集成化优化方法对臂架结构进行轻量化设计。首先,设置5种典型荷载工况进行静力分析并确定危险工况;其次,对构件截面参数进行灵敏度分析以确定优化参数;最后,以最大应力和位移为约束条件,分别采用ANSYS一阶方法和混合序列二次规划方法(MISQP)对臂架结构进行优化。结果表明MISQP优化效果优于一阶优化效果,优化后臂架质量减轻5635 kg,下降22.57%。经验证MISQP优化方案也满足其他荷载工况要求,表明臂架结构优化模型具有可行性,为塔机轻量化设计提供重要参考价值。To enhance the overall performance of tower crane structures and achieve energy savings and emissions reduction,this study employs ANSYS software to establish a three-dimensional finite element model of the QTP300(7526)nuclear power tower crane jib.An integrated optimization approach is used for lightweight design of the jib structure.Five typical load cases are defined for static analysis to identify the critical load case.A sensitivity analy⁃sis of the cross-sectional parameters of the components is conducted to determine the optimization variables.With maximum stress and displacement as the constraints,the jib structure is optimized using both the ANSYS first-order optimization method and the Mixed Integer Sequential Quadratic Programming(MISQP)method.The results indi⁃cate that the MISQP method achieves better optimization results than the first-order method,reducing the jib weight by 5635 kg,22.57%reduction.Validation confirms that the optimized design also meets the requirements under oth⁃er load cases,demonstrating the feasibility of the optimized jib structure model.The results may provide a significant reference for lightweight design in tower cranes.

关 键 词：臂架结构 集成优化方法 轻量化设计 灵敏度分析 MISQP方法 

分 类 号：TU311.4[建筑科学—结构工程]