POLYFLOW推进剂生产中捏合工艺的物料流变数值模拟

摘要推进剂药浆含有某些易燃易爆的化学材料，剧烈冲击、过高温度都可能导致设备停车，爆炸事故，从而带来巨大的经济损失和人员伤亡。由于推进剂药浆混合的多变性和复杂性，使得目前对此的研究进展不是很大。因此，研究推进剂药浆捏合过程对安全生产具有很大的现实意义和实用价值。本课题的研究工作主要是运用有限元软件POLYFLOW对单螺杆流道内熔体流动状态进行系统的非等温模拟，探讨了压差和单螺杆转速对流道内熔体的压力、温度和剪切速率等参数的影响,由此分析推进剂捏合过程中可能存在的危险情况。64155

毕业论文关键词推进剂 POLYFLOW 安全

毕业设计说明书（论文）外文摘要

Title Kneading process in the production of propellant Material rheological numerical simulation

Abstract Propellant slurry contains some inflammable and explosive of chemical material, so strong impact and high temperature could lead to equipment failure, explosion accidents, resulting in huge economic losses and casualties. Due to the variability and complexity of mix slurry propellant, there is not great achievement in this study. Therefore, it has great practical significance and practical value for safety in production that study the kneading process of propellant slurry.In this paper, the melt flow state of the single screw channel of non-isothermal simulation was analyzed. The finite element software, POLYFLOW, was used to simulate the melt flow state. Differential pressure and single screw speed of revolution on the influence of parameters such as pressure, temperature and shear rate of the melt in the flow fields were studied. The dangerous situation in the kneading process of propellant slurry was analyzed.

Keywords Propellant POLYFLOW safety

1 绪论 1

1.1 课题背景和意义 1

1.2 混合设备与推进剂流变特性 2

1.3 固体推进剂混合设备与工艺研究进展 3

2 POLYFLOW简介及分析过程 4

2.1 模拟分析软件的选用 4

2.2 POLYFLOW简介 5

2.3 软件的分析过程 6

2.4 小结 7

3 流道有限元模型的建立 7

3.1 前处理软件GAMBIT介绍 8

3.2 基本假设 8

3.3 控制方程 9

3.4 本构方程 9

3.5 物料参数 10

3.6 物理模型 10

3.7 有限元模型 10

3.8 小结 12

4 单螺杆挤出机流道数值模拟 12

4.1 单螺杆挤出机 12

4.2 流场计算结果处理和分析 12

4.3 不同参数对流场的的影响 15

4.4 小结 18

结论 POLYFLOW推进剂生产中捏合工艺的物料流变数值模拟:http://www.751com.cn/huaxue/lunwen_71126.html