喷雾造粒关键设备结构可靠性分析与研究
毕业论文关键词 喷雾造粒技术 可靠性 FTA 有限元分析
Title Structural Reliability Analysis and Research on Key Equipment of Spray Granulation
Abstract The topic of this graduation project is "Structural Reliability Analysis and Research of Key Equipment of Spray Granulation", which mainly studies the key structure of a new type of spray granulation equipment and the reliability of the components. Present the identified research methods for the reliability analysis of knowledge determine key structure and component failure modes and causes, which is based on possible failure modes, then through the finite element method of these key structures and parts in the modeling and analysis, proves the reliability of them and eventually build a reliability model of component level, to study the production of the reliability of the whole line provide data and theoretical basis. As the core equipment of explosive production, this spray granulation production line has a high request of safety, once the accident will bring a very serious consequences. Therefore, it is very important to design, analyze and evaluate the reliability of the spray granulation equipment.
Keywords Spray granulation Reliability FTA Finite element analysis
目录
1、绪论 1
1.1 喷雾造粒技术简介 1
1.2 可靠性概述 1
1.3 研究现状 1
1.4 课题的研究意义与内容 3
1.4.1 意义 3
1.4.2 内容 3
1.5 论文结构 4
2、系统的基本结构、工序与特点 5
2.1 本系统的基本结构组成 5
2.2 本系统生产单元的工序组成 7
2.3 系统生产工艺流程 9
2.4 本生产系统可靠性设计 10
3、基于FTA方法的可靠性分析 13
3.1 故障树分析 13
3.2 对混合制粒一体机的 FTA初步分析 13
3.2.1初步分析. 13
3.2.2 固料加料单元故障树 14
3.2.3 液料配制及加料单元故障树 15
3.2.4 连续混合单元故障树 16
3.3 对驱溶烘干装置的 FTA分析 17
3.3.1 初步分析 17
3.3.2 圆盘干燥机故障树 18
3.3.3 动力装置故障树 19
3.4 故障树结果定性分析 20
4、基于有限元的可靠性分析 25
4.1 有限元方法概述 25
4.2 分析内容 25
4.3 铝粉结块. 26
4.3.1 铝粉结块的材料性能检测试验 26
4.3.2 铝粉结块的有限元分析 26
4.4 加料螺杆. 30
4.5 螺栓 32
4.6 有限元结论分析 34