ABAQUS迫击炮座钣的轻量化设计
为此,本文使用了HyperMesh软件对座钣模型进行了简化和有限元网格划分。为了模拟了座钣与土壤的接触和相互作用，使用了ABAQUS软件建立座钣-土壤有限元模型。为了实现座钣的轻量化设计，本文采用了铝合金、镁合金、钛合金三种轻质合金作为座钣材料，分别进行了射角为45°、75°和85°三种工况下的分析计算，得到了座钣的应力云图和位移云图，对结果进行对比分析；再根据座钣受力状态下的应力分布情况，对座钣的部分筋钣进行尺寸优化，在保证座钣强刚度的情况下进行了两次减重试验，最终实现了减重目标。29158
关键词 迫击炮座钣 轻量化 轻质合金 结构优化 有限元建模
毕业论文设计说明书外文摘要
Title The lightweight Design of The Mortar Base Plate
Abstract
This article mainly uses the finite element analysis and structure optimization for design and analysis,with a mortar base plate for research object,with a base plate lightweight as the goal,to plate weight loss more than 10% for requirements.
Therefore, this article uses the HyperMesh software for base plate model simplified and finite element meshing.In order to simulate the contact interaction between plate and soil,the ABAQUS software is used to establish a finite element model of plate-soil.In order to realize the lightweight design of plate,this article adopts the aluminum alloy, magnesium alloy,titanium alloy,three kinds of light alloy as a new base plate material,respectively.The three degrees of working conditions of 45° degrees,75° degrees and 85° degrees are analyzed and calculated respectively,and the stress nephogram and displacement nephogram of the base plate are carried out,the results are analyzed.then,According to the stress distribution of the base plate under the working stress,size optimization of several plates are carried out,in guarantee the severity and strength of the plate,two weight loss tests are conducted,and the weight loss goal is finally achieved .
Keywords base plate of mortar lightweight light alloy structure optimization finite element modeling
目 次
1 绪论 1
1.1 本课题的研究背景及意义 1
1.2 国内外研究进展 2
1.3 本课题的研究内容和研究方法 3
2 座钣及接触面的有限元建模和分析 4
2.1 有限元方法 4
2.2 座钣的有限元网格 5
2.3 座钣的受力特性 8
2.4 迫击炮的不同工况和载荷施加 10
2.5 座钣与土壤有限元模型 11
2.6 三种工况下的计算结果及分析 12
2.7 本章小结 16
3 座钣的轻量化设计与分析 17
3.1 轻量化设计的一般技术途径 17
3.2 轻质合金座钣的有限元分析 17
3.3 进行结构优化的座钣模型 25
3.3 本章小结 30
4 轻量化效果对比评价 31
4.1 采用轻质合金的座钣模型计算结果对比分析 31
4.2 进行结构优化的座钣模型计算结果对比分析 31
4.3 本章小结 32
结 论 33
致 谢 34