锚链轮结构有限元分析（本科毕业论文设计）.doc

摘 要

锚链轮作为锚机的重要组成部分，是锚机正常工作不可少的部分。锚链轮在工作时受到各种载荷的作用，包括弯曲、扭转、振动及拉压等，受力情况十分复杂。因此，开展在正常工作和极限工作情况下锚链轮应力分布及变形情况的研究，分析危险区域，提出相关改进措施，对降低事故率，保证顺利起抛锚，提高锚链轮的质量有着十分重要的意义。
本文是利用ABAQUS有限元分析软件对某船用锚链轮结构进行有限元分析。选择有限元单元的类型，确定载荷、选择计算工况、确定边界约束条件，建立了锚链轮的有限元分析模型。计算了该锚链轮的静态强度、刚度，并以数据和图表的综合方式给出结果。
计算结果表明锚链轮整体应力较小，整个锚链轮系统均满足强度要求。整个系统中链轮的应力相对较大，并提出了相关改进措施，从而使设计者能全面、直观地掌握结构的应力、应变情况，为锚链轮的设计开发过程提供可靠的设计依据。


关键词：锚链轮，ABAQUS，有限元，强度分析





ABSTRACT

Anchor chain round as an important component of the machine is essential anchor for the part of the normal work. Anchor chain round at work, the role of various loads, including bending, reverse, vibration and tension and compression, the force is very complex. Therefore, the work carried out in normal circumstances and the limit of the distribution chain round of stress and deformation of the research, analysis dangerous region, to improve relevant measures to reduce the accident rate, ensure a smooth since broken down and improve the quality of anchor chain round is very important Significance.
This paper is to use ABAQUS finite element analysis software for a ship anchor chain round structure of finite element analysis, select the type of finite element unit to determine load, the calculated choice of condition to determine the border constraints, established a chain round of the limited Element analysis model. Calculation of the anchor chain round the static strength, stiffness, and data and charts presented the results of an integrated approach.
The results show that chain round the overall stress smaller, the entire chain round of systems to meet strength requirements. Sprocket system as a whole in the relatively large stress and make the relevant improvement measures, so that designers can be comprehensive, intuitive grasp of the stress and strain, for the anchor chain round the design development process and provide a reliable basis for the design


Key words：Anchor chain round, ABAQUS ,finite element, structural analysis








目 录

中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 论文选题背景 1
1.2 论文的研究目的和意义 1
1.3 课题的研究内容 1
2弹性有限元分析基础理论 3
2.1 有限元发展与现状 3
2.2 有限元法的基本原理与方法 4
2.2.1有限元法基本原理 4
2.2.2有限元方法与步骤 4
2.3 结构静力学分析的有限单元法 6
2.3.1 单元特性的导出方法 6
2.3.2有限单元法的分析步骤 6
2.4锚链轮结构有限元法的研究现状 15
2.5 ABAQUS程序简介 16
2.5.1 ABAQUS主要模块简介 16
2.5.2 ABAQUS主要分析功能简介 16
3 锚链轮有限元模型建立 19
3.1 锚链轮几何模型 19
3.1.1锚链轮结构介绍 20
3.1.2 三维几何模型 20
3.2 受力分析 21
3.2.1受力简介 21
3.2.2工况分析 22
3.2.3受力简化 22
3.3有限元网格模型 22
3.4边界条件 26
3.5小结 28
4 锚链轮的静力分析 29
4.1 锚链轮强度分析 29
4.2 锚链轮刚度分析 33
4.3 小结 36
5总结 37
5.1 论文主要工作与结论 37
5.2 进一步工作 37
6致谢 38
参考文献 39