基于Ansys Workbench的平头塔式起重机臂架结构优化分析  

Optimization analysis of boom structure of flat-top tower crane based on Ansys Workbench

作　　者：黄江涛 高崇仁[1] 王国涛 田星宇 周芳宇 Huang Jiangtao;Gao Chongren;Wang Guotao;Tian Xingyu;Zhou Fangyu

机构地区：[1]太原科技大学,太原030024

出　　处：《起重运输机械》2023年第16期37-42,共6页Hoisting and Conveying Machinery

摘　　要：由于臂架是平头塔式起重机质量占比较大的结构,对整机的性能影响至关重要,故对臂架结构进行优化设计可大大提高整机的工作性能。为此,文中采用许用应力法完成对平头塔式起重机臂架结构的初步设计计算,并对整机工作环境进行分析,了解起重臂架的工况,并使用Ansys Workbench软件对臂架进行静力学分析,以通过求解得到的应力云图和形变云图验证臂架结构设计计算的强度和刚度。另外,对起重臂架进行模态分析,获取结构自身前六阶的固有频率和振型,为结的故障诊断和预警提供了可靠的理论依据。在保证结构强度和刚度的前提下,通过对起重臂架各弦杆截面进行优化,从而降低臂架自重,提升材料的利用率,为起重臂架的轻量化设计提供参考思路。Boom occupies a large proportion in the mass of flat-top tower crane,which has a great influence on the performance of the whole machine.Therefore,the optimization design of boom structure can greatly improve the performance of the whole machine.Therefore,the authors completed the preliminary design and calculation of the boom structure of the flat-top tower crane by using the allowable stress method,and analyzed the working environment in order to understand the working conditions of the boom.The static analysis of the boom was carried out by Ansys Workbench software,and the strength and stiffness in the design and calculation of the boom structure were verified by the stress nephogram and deformation nephogram obtained by solving.In addition,the modal analysis of the boom was carried out in order to obtain the first six natural frequencies and vibration modes,which provides a reliable theoretical basis for fault diagnosis and early warning.Under the condition of ensuring the structural strength and stiffness,the cross section of each chord of the boom is optimized,so as to reduce the self-weight of the boom and improve the utilization rate of materials,which provides a reference for the lightweight design of the boom.

关 键 词：平头塔式起重机 臂架结构 有限元 优化分析 模型 

分 类 号：TH.213.3[机械工程]