Casting Process Simulation and Optimization of Composite Solid Propellant Slurry

被引：0

作者：

Li, Sheng-Ting ^{[1
]}

Pang, Wei-Qiang ^{[2
]}

Nan, Feng-Qiang ^{[1
]}

Deng, Chong-Qing ^{[2
]}

Liu, Qi-Min ^{[1
]}

机构：

[1] School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing,210094, China

[2] Xi'an Modern Chemistry Research Institute, Xi'an,710065, China

来源：

Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2024年 / 47卷 / 10期

关键词：

Casting process - Casting process parameters - Casting process simulation - Composite solid propellant - Flow process - Material mechanics - Process optimisation - Process simulations - Rheological property - Simulation and optimization;

D O I：

10.14077/j.issn.1007-7812.202309006

中图分类号：

学科分类号：

摘要：

In order to obtain the optimal casting process parameters of HTPB composite solid propellant, the constitutive model for the flow process of propellant slurry was established based on the rheological properties of HTPB propellant slurry adopting a combination of experimental and theoretical Simulation methods. The casting process of HTPB composite propellant slurry was simulated by using the finite element Software, and the reliability of the Simulation results was verified through experiments. Moreover, the casting process of the propellant slurry was optimized and the optimal casting process parameters were ob-tained. The results show that HTPB propellant is a typical pseudoplastic fluid, and its viscosity decreases with increasing shear rate. The porosity and the casting time are 12. 5% and 11. 25%, respectively after comparison of experiment and Simulation. Among them, temperature has the most significant impact on casting time, and vacuum degree has the most significant impact on porosity. © 2024 China Ordnance Industry Corporation. All rights reserved.

引用

页码：937 / 944

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