Interior Ballistics Modeling and Optimization of Supercritical Carbon Dioxide-Based Catapult

被引：0
|
作者：
Zhao Z. [1 ]
Jiang Y. [1 ]
Jia Q. [1 ]
Li Y. [2 ]
Niu Y. [1 ]
机构：
[1] School of Aerospace Engineering, Beijing Institute of Technology, Beijing
[2] System Engineering Institute, Rocket Army Academy, Beijing
来源：
Binggong Xuebao/Acta Armamentarii | 2022年 / 43卷 / 07期
关键词：
interior ballistics model; missile catapult; multi-objective optimization; real gas effect; supercritical carbon dioxide;
D O I：
10.12382/bgxb.2021.0370
中图分类号：
学科分类号：
摘要：
To analyze the feasibility of supercritical carbon dioxide-based catapults, an interior ballistic model is constructed based on the Soave-Redlich-Kwong equation of state, and an one-dimensional isentropic nozzle model considering real gas effect is introduced. Using experimental data of nozzle mass flow rate and calculation results from relevant literature, the interior ballistic model is validated. Based on validation and simulation, a multi-objective optimization model is developed and solved by using a genetic algorithm. The results show that the missile catapult based on supercritical carbon dioxide can meet the given launch requirements. The interior ballistic model is less sensitive to time step, and the ideal gas and real gas models yield significantly different results. Compared with specific reference conditions, the optimized mass of supercritical carbon dioxide is reduced by 32. 2%, and the energy utilization rate is increased by 49. 52% . The research results can provide theoretical reference for designing supercritical carbon dioxide-based catapults. © 2022 China Ordnance Society. All rights reserved.
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页码：1553 / 1564
页数：11
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