摘要我国起重机械设计观念陈旧,对于起重机械节能和经济性重视不够，导致目前我国在用起重机械金属结构体积庞大，机构传动效率低，驱动功率大，能耗严重。再者，由于我国工业生产规模不断扩大，生产效率日益提高，产品生产过程中物料搬运费用所占比例逐渐增加，企业对大型、高速和自动化起重机的需求量也不断增长。起重机的起重量越来越大，工作速度越来越快，自动化程度越来越高，故将对起重机的能耗和可靠性提出更高的要求。本毕业论文通过有限元软件hyperworks对桥式起重机主梁结构的分析然后进行拓扑优化，可以在满足强度和刚度都满足设计要求的基础上，减少了主梁的质量，达到节能的目的。6429
关键词 桥式起重机 设计观念陈旧 有限元 拓扑优化
毕业设计说明书（论文）外文摘要
Title A topology optimization design of main girder of overhead traveling crane
Abstract
China's crane design idea is obsolete. At present the size of crane metal structure in our country is huge. Mechanism of transmission efficiency is low, drive power is large, and energy consumption is serious. Moreover, because our country industry is constantly expanding the scale of production, the production efficiency is improved and the proportion of the production process of material handling cost gradually increased. Enterprises’ demand for large, high speed and automation crane is also growing. Crane weight is bigger and bigger and work faster and faster.The automation degree is higher and higher.Also the requirements will be put forward higher and higher on the energy consumption and the reliability of crane. Do analysis and topology optimization for main girder of overhead traveling crane structure Through the finite element software HyperWorks .Not only can satisfy the strength and stiffness but also can meet the design requirements on the basis of main beam, reduces of the quality, achievement of the purpose of energy saving.
Keywords automation degree HyperWorks topology optimization
目 次
1 引言 1
1.1国内外研究现状 1
1.1.1国外研究现状 1
1.1.2国内研究现状 2
1.2 研究目的与内容 3
1.2.1 研究目的 3
1.2.2研究内容 3
1.3课题研究技术路线 3
1.3.1总体研究方案 3
1.3.2桥式起重机主梁拓扑优化的研究步骤 4
2 课题研究的基本理论 5
2.1有限元的发展 5
2.2有限元法在大型起重机中的应用现状 5
2.3有限元法的计算过程及其优缺点 6
2.4有限元软件Hypermesh 概述 7
3 桥式起重机主梁结构分析 9
3.1研究对象的选择与分析 9
3.2桥式起重机主梁几何模型的建立 11
3.3桥式起重机有限元模型的建立 13
3.3.1桥式起重机主梁三文模型的导入 13
3.3.2抽取集合中面 14
3.3.3网格划分 14
3.4有限元模型分析 16
3.4.1 信息卡片的编辑 16
3.4.2创建边界条件 17
3.5主梁模型等效静力分析 19
4 桥式起重机主梁的拓扑优化 26
4.1拓扑优化的含义 26
4.2确定优化模型 27
4.3拓扑优化计算结果分析 28
结 论 35 hyperworks桥式起重机主梁的拓扑优化设计:http://www.youerw.com/yanjiu/lunwen_3971.html