高速航行体与运载器水面分离平面弹道数学仿真  

Numerical simulation on the trajectory of high speed vehicle separating from capsule near the free surface

作　　者：彭正梁[1] 王宝寿[1] 

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《船舶力学》2011年第1期95-100,共6页Journal of Ship Mechanics

摘　　要：基于势流理论计算水动力,求解线化的多体动力学方程,对高速航行体与运载器水面分离过程进行了二维弹道仿真。依据分离运动的特点,弹道仿真计及了适配器刚度和间隙、波浪扰动、流体作用力、助推器推力及分离内弹道过程,结合部分实验结果,给出了弹器分离运动的半经验半理论的计算分析方法。仿真研究考虑了航行体从水中发射到弹器完成水面分离的整个水下弹道过程。将仿真结果与模型实验结果进行了对比,验证了该方法的有效性。Numerical simulation for predicting the separating trajectory of high speed vehicle and capsule by solving the linearized multi-body dynamic equations was performed for two-dimensional problem.In these equations,the calculation of hydrodynamic force terms is based on potential flow theory.The trajectory simulation includes various factors such as the adapter stiffness,the gap between the vehicle and the capsule,wave action,fluid force,booster thrust force and the internal trajectory of separation.Partially combined with experimental results,a semi-theoretical and semi-empirical method is proposed to solve this problem.The numerical simulation including the whole underwater process from launching to the separation of vehicle and capsule,and model test results and simulation results were compared to verify the validity of the method.

关 键 词：弹器分离 水下弹道 内弹道 数学仿真 

分 类 号：O35[理学—流体力学]