起重机箱梁加劲肋轻量化仿生设计与分析  

Bionic Design and Analysis of Lightweight Stiffening Rib of Crane Box Girder

作　　者：汤双清 罗晨 陈涛 TANG Shuangqing;LUO Chen;CHEN Tao(College of Mechanical and Power Engineering,China Three Gorges University,Yichang 443002,China)

机构地区：[1]三峡大学机械与动力学院,湖北宜昌443002

出　　处：《机械》2023年第4期9-16,共8页Machinery

基　　金：国家自然科学基金(51175297)。

摘　　要：以桥式起重机箱梁及其内部加劲肋为研究对象,通过对桥式起重机箱梁与原型生物王莲的相似性分析与计算,模拟王莲背面的叶脉结构,对桥式起重机箱梁加劲肋部分进行了仿生设计,最后在极限工况下利用Workbench有限元仿真分析软件对原型与仿生型桥式起重机箱梁整体进行了有限元分析,并将结果作比较,发现仿生型箱梁加劲肋与原型箱梁加劲肋相比,仿生型加劲肋的质量在降低44.97%的情况下,箱梁的最大应力与最大挠度仅分别增大了6.88%和0.42%,仍满足许用要求,为与起重机箱梁同类型的结构创新设计提供了科学的参考。Taking the bridge crane box girder and its internal stiffener as the research object,through the similarity analysis and calculation of the bridge crane box girder and the prototype biological Wang Lian,the simulation of the vein structure on the back of the Wang Lian,the bionic design of the bridge crane box girder stiffener.Finally,the finite element analysis of the whole prototype and bionic type bridge crane box girder was carried out by using Workbench finite element simulation analysis software in extreme working conditions,and the results were compared.It was found that the mass of bionic type box girder stiffener was reduced by 44.97%when compared with the prototype box girder stiffener.The maximum stress and maximum deflection of the box girder only increase by 6.88%and 0.42%respectively,which still meet the allowable requirements.It provides a scientific reference for the innovative design of the same type of structure as the crane box girder.

关 键 词：加劲肋 优化设计 仿生 有限元分析 

分 类 号：O242.21[理学—计算数学]