【作者】 王艳；

【导师】 张小兵；

【作者基本信息】 南京理工大学 ， 兵器发射理论与技术， 2002， 硕士

【摘要】 串联多药室技术是一种新型的发射技术。它以相当成熟的固体发射药技术为基础，通过对现有的火炮进行改造达到提高弹丸动能的目的，这对于改进和提高我国的武器性能具有重要的意义。由于对此进行实验研究需要耗费大量的人力、物力和财力，所以很难通过实验的方法来了解其内弹道过程。本文利用数值模拟的方法，从理论上深入地描述了这一技术的特点及内弹道过程，并且为后续的研究工作提供一系列参考数据。主要内容如下： 1．建立常规装药情况下的某140mm口径坦克炮的一维两相流数学模型，利用MarcCormark格式进行数值求解。数值结果与实验结果有较好的一致性。 2．建立某140mm口径串联多药室坦克炮的物理模型及一维两相流数学模型，运用MarcCormark差分格式进行数值模拟。并且利用已完成的数值模拟软件，研究分析了主副药室装药量比、副药室点火延迟及活塞质量对串联多药室火炮内弹道性能的影响。 3．将计算所得的常规装药情况下的数值结果与串联多药室装药情况下的数值结果进行分析比较。比较结果表明，串联多药室火炮可以在不增加膛压的情况下达到提高弹丸初速的目的。 4．为了方便串联多药室研究工作的进行，建立火炮内弹道数据库，用于存放大量的内弹道资料。该数据库也可应用于其它的内弹道研究工作。更多还原

【Abstract】 Series chamber is a new technology on the basis of the mature technology of solid propellant. It can improve the propeller’s kinetic energy through rebuilding the existed guns. It is important to the weapons’ performance improvement in our country. It is difficult to use experiment to learn the technology’s interior process because of the experiment needs too many resources. In this essay, simulation method has been used to describe the new technology’s characters and interior process, and the simulation result is valuable to the experimental works. The principle contents are as follows:1. After the general 140mm gun’ s two-phase flow model has been established, the numerical simulation results is computed .The results are agree with the experimental results.2. After studies the 140mm series chamber gun’s physical model, it’s two-phase flow model has been established. The numerical simulation value of the two-phase flow model has been attained through MarcCormark method. In addition, the completed programming has been used to analysis the influence of main-depute powder proportion, ignition delay of depute power and plunger mass on interior performance.3. The simulation results between the general 140mm gun and the series chamber gun have been compared to describe the advantages of the series chamber technology. The result show, the new technology can improve propeller’s velocity while not adding chamber’s pressure.4. In order to make the research work convenient, a gun database has been established. It stores extensive information on interior ballistic. The database also can be used in other interior works.更多还原