水下气动发射装置发射性能参数灵敏度分析  

Sensitivity analysis of the performance parameters of an underwater pneumatic launcher

作　　者：牛清勇[1,2] 李天匀[1,2] 朱翔[1,2] 朱显明[3] 

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074 [2]华中科技大学船舶和海洋水动力湖北省重点实验室,湖北武汉430074 [3]中国舰船研究设计中心船舶振动噪声重点实验室,湖北武汉430064

出　　处：《哈尔滨工程大学学报》2015年第7期877-881,共5页Journal of Harbin Engineering University

基　　金：国家自然科学基金资助项目(51379083)

摘　　要：为了研究某型水下气动发射装置的内弹道性能,对主要参数的影响规律和灵敏度进行了分析。基于热力学和动力学理论建立了发射系统各部件的数学模型,再将它们综合起来得到了发射系统的整体模型。由模型计算的武器发射管内的运动时间、气瓶剩余压强与水池试验结果吻合,验证了模型的有效性。利用局部灵敏度分析法,对发射管最高膛压和武器出管速度的4个主要参数进行了影响规律分析。结果表明:影响发射过程最高膛压的最灵敏参数为武器运动初始阻力;影响武器出管速度的最灵敏参数为发射气瓶初始压强和发射阀最大开启面积。In order to study the interior-ballistic performance of an underwater pneumatic launcher,the influence laws and sensitivities of the main parameters were analyzed. Based on the theories of thermodynamics and rigid-body dynamics,the mathematical model for each component of the system was developed and the whole model was then established by synthesizing them. The moving duration time of the weapon inside the launch tube,and the remaining pressure of the air-bottle after launch were calculated. These calculated results agreed well with the water tank experimental results,which validates the effectiveness of the model. Four main parameters,which influence the maximum chamber pressure and the exit velocity of the weapon,were analyzed to estimate their effects on the interior ballistics. The results showed that the critical moving resistant force is the most sensitive influence parameter of the maximum chamber pressure. The initial air-bottle pressure and the maximum open area of the launch valve are the most sensitive influence parameters of the exit velocity.

关 键 词：水下 气动 发射系统 数学模型 内弹道性能 灵敏度分析 性能参数 

分 类 号：TJ6[兵器科学与技术—武器系统与运用工程]