宇航学报

宇航学报 ›› 2014, Vol. 35 ›› Issue (2): 157-162.doi: 10.3873/j.issn.1000-1328.2014.02.005

• 飞行器设计与力学 • 上一篇    下一篇

弹器水面燃气分离时机原则探讨及计算验证

惠卫华，鲍福廷，刘旸   

  1. 西北工业大学燃烧、热结构与内流场重点实验室，西安 710072
  • 收稿日期:2013-04-01 修回日期:2013-10-10 出版日期:2014-02-15 发布日期:2014-02-25
  • 基金资助:

    国家自然科学基金（51005179）

Calculation Verification and Principle Discussion of Separation Opportunity of Capsule and Missile Near Water Surface

HUI Wei hua,  BAO Fu ting,  LIU Yang   

  1. Science and Technology on Combustion Internal Flow and Thermal Structure Laboratory，Northwestern Polytechnical University, Xi’an 710072，China
  • Received:2013-04-01 Revised:2013-10-10 Online:2014-02-15 Published:2014-02-25

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摘要：

为了解决考虑弹射点火初速、运载器出水长度、武器系统隐蔽性及水的黏滞阻力多种因素影响下弹器水面燃气分离时机选择难的问题，建立关键初始参数可调的弹器水面分离验证系统，采用“尽快出水”选择原则，提出并实现了约束输出参数条件下进行点火时机选择的优化方案。结果表明，该优化方案结论符合实际，可用于弹器水面分离时机普适性选择过程，对于弹射动力系统设计提供有力支撑。

关键词: 内弹道, 燃气发生器, 弹器水面分离, 分离时机

Abstract:

For settling the problem about difficult selection of separation opportunity of capsule and missile near the water surface based on launch considering initial ignition velocity, capsule’s length over water surface, concealment of weapon system and viscosity resistance of water, constructing a verification system that can adjust its key initial parameter, this system adopt this selection principle, “out water quickly as possible ”, a optimization approach is presented and realized for ignition opportunity selection under the condition of constrained output parameters. Results show this approach’s conclusions according with fact which can use in common selection process of separation opportunity of capsule and missile near the water surface, and this approach can strongly support design of launch system.

Key words: Internal trajectory, Gas generator, Capsule and missile separation near free surface, Separation opportunity uncertainty

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