起重机箱梁加劲肋轻量化仿生设计与分析
汤双清，罗晨*，陈涛
（三峡大学 机械与动力学院，湖北 宜昌 443002）
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。
关键词：加劲肋；优化设计；仿生；有限元分析
中图分类号：O242.21 文献标志码：A doi：10.3969/j.issn.1006-0316.2023.04.002
文章编号：1006-0316 (2023) 04-0009-08
Bionic Design and Analysis of Lightweight Stiffening Rib of Crane Box Girder
TANG Shuangqing，LUO Chen，CHEN Tao
( College of Mechanical and Power Engineering, China Three Gorges University, Yichang 443002, China )
Abstract：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.
Key words：stiffening rib；the optimization design；bionics；finite element analysis
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收稿日期：2022-06-27
基金项目：国家自然科学基金（51175297）
作者简介：汤双清（1962－），男，湖北孝感人，博士，教授，主要研究方向为机械设计及理论，Email：tang_sq@ctgu.edu.cn。*通讯作者：罗晨（1999－），男，湖北黄冈人，硕士研究生，主要研究方向为机械设计及理论，Email：836801519@qq.com。
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