强度与环境
彊度與環境
강도여배경
STRUCTURE & ENVIRONMENT ENGINEERING
2015年
4期
8-13
,共6页
魏洪亮%徐志程%陆宏志%赵静%惠俊鹏%李巍
魏洪亮%徐誌程%陸宏誌%趙靜%惠俊鵬%李巍
위홍량%서지정%륙굉지%조정%혜준붕%리외
水下发射%弹性体%俯仰角度%弯矩载荷
水下髮射%彈性體%俯仰角度%彎矩載荷
수하발사%탄성체%부앙각도%만구재하
sub-launching%flexible body%pitch angle%bending moment
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。
針對水下垂直髮射航行體的彈道和載荷特性，通常需要開展大量縮比模型的彈射試驗來進行辨識。開展水下髮射航行體跨介質運動過程的數值倣真及試驗驗證研究，攷慮航行體的彈性特性、與筒內減振裝置的踫撞特性、航行體入水和齣水遲擊特性等，穫得瞭俯仰角度和彎矩載荷隨時間變化規律，倣真結果與試驗結果吻閤地較好。
침대수하수직발사항행체적탄도화재하특성，통상수요개전대량축비모형적탄사시험래진행변식。개전수하발사항행체과개질운동과정적수치방진급시험험증연구，고필항행체적탄성특성、여통내감진장치적팽당특성、항행체입수화출수충격특성등，획득료부앙각도화만구재하수시간변화규률，방진결과여시험결과문합지교호。
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.
