弹性体水下发射试验的仿真研究  

Simulation study on sub-launching test of flexible body

作　　者：魏洪亮[1] 徐志程 陆宏志[1] 赵静[1] 惠俊鹏[1] 李巍[2] 

机构地区：[1]中国运载火箭技术研究院研发中心,北京100076 [2]中国船舶科学研究中心,无锡214082

出　　处：《强度与环境》2015年第4期8-13,共6页Structure & Environment Engineering

基　　金：总装水动力学专业组支持项目

摘　　要：针对水下垂直发射航行体的弹道和载荷特性,通常需要开展大量缩比模型的弹射试验来进行辨识。开展水下发射航行体跨介质运动过程的数值仿真及试验验证研究,考虑航行体的弹性特性、与筒内减振装置的碰撞特性、航行体入水和出水冲击特性等,获得了俯仰角度和弯矩载荷随时间变化规律,仿真结果与试验结果吻合地较好。Sub-launching test of reduced-scale flexible body model was necessary for identifying the characteristics of underwater vehicle＇s trajectory and load. Simulation and test study on the whole vertical sub-launching process was carried out. The model of the vehicle was flexible. In the process of moving from the launching tube, the effect of multiple constraints by vibration-damping pad and trans-media shock from hydrodynamic load were simulated. In the process of moving from the surface of water, the effect of trans-media unloading on the vehicle was considered. The variation trends of pitch angle and bending moment were figured out, and the simulating curve and the test curve achieve a good agreement.

关 键 词：水下发射 弹性体 俯仰角度 弯矩载荷 

分 类 号：V412[航空宇航科学与技术—航空宇航推进理论与工程]