冲压增程制导炮弹气动特性分析及爬升段优化
Aerodynamic characteristics analysis and optimization of climb trajectory for ramjet guided projectile
杜小文 1王旭刚 1朱胤2
作者信息
- 1. 南京理工大学 能源与动力工程学院,南京 210094
- 2. 中国船舶集团有限公司第七一〇研究所,湖北 宜昌 443000
- 折叠
摘要
为实现爬升段燃料消耗最少,对巡航式冲压增程制导炮弹进行气动特性分析及弹道/发动机一体化优化.采用工程算法对炮弹进行气动参数计算,综合考虑了发动机与气动、弹道模块的耦合特性,建立了多约束条件下的炮弹弹道优化模型,采用Radau伪谱法对炮弹进行爬升段弹道优化.仿真结果表明,所设计的炮弹外形具有良好的气动特性和操稳特性,优化后爬升段燃料消耗减少了5.7 kg,可为巡航段飞行提供更多燃料.
Abstract
To achieve the minimum fuel consumption during climb trajectory,the aerodynamic characteristics analysis and integrated optimization design of trajectory/engine for cruise ramjet guided projectile are carried out.This paper uses engineering algorithm to analyze the aerodynamic characteristics of projectile,comprehensively considers the coupling characteristics of engine with aerodynamics and trajectory system,establishes trajectory optimization model of the projectile under multiple constraints.The Radau pseudo-spectral method is used for trajectory optimization of climb phase.The simulation results indicate that designed shape of projectile has good aerodynamic and maneuverability characteristics,and compared with the scheme of only optimizing the angle of attack,the integrated optimization scheme can reduce fuel consumption by 5.7 kg,which can provide more endurance fuel for the cruise phase.
关键词
巡航式/冲压增程制导炮弹/爬升段/气动特性/一体化优化Key words
cruise/ramjet extended-range guided projectile/climb trajectory/aerodynamic characteristics/integrated optimization引用本文复制引用
基金项目
中央高校基本科研业务费专项资金资助项目(30919011401)
出版年
2024
NETL
NSTL
万方数据