振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
13期
210-214
,共5页
快速傅里叶变换%舰载导弹%修正的Craig-Bampton法%弹位%发射精度
快速傅裏葉變換%艦載導彈%脩正的Craig-Bampton法%彈位%髮射精度
쾌속부리협변환%함재도탄%수정적Craig-Bampton법%탄위%발사정도
fast Fourier transform%shipborne missile%modified Craig-Bampton method%missile position%launching precision
针对发射精度问题,利用频谱分析技术研究了舰载导弹发射弹位的影响。基于修正的Craig-Bampton法和虚拟样机技术,建立了船舶运动和导弹发射刚柔耦合一体化模型。利用发射时间参数化脚本语言,实现了自动仿真,获取了大量工况下不同弹位的导弹出筒姿态,确定了恶劣发射弹位。基于快速傅里叶变换法(FFT)对导弹动力学响应进行了频谱分析,明确了发射弹位和发射精度的关系。依据研究结果,能够根据船舶的具体运动形式,设计武器系统放置的位置,同时也对发射时选择合适弹位具有指导意义。
針對髮射精度問題,利用頻譜分析技術研究瞭艦載導彈髮射彈位的影響。基于脩正的Craig-Bampton法和虛擬樣機技術,建立瞭船舶運動和導彈髮射剛柔耦閤一體化模型。利用髮射時間參數化腳本語言,實現瞭自動倣真,穫取瞭大量工況下不同彈位的導彈齣筒姿態,確定瞭噁劣髮射彈位。基于快速傅裏葉變換法(FFT)對導彈動力學響應進行瞭頻譜分析,明確瞭髮射彈位和髮射精度的關繫。依據研究結果,能夠根據船舶的具體運動形式,設計武器繫統放置的位置,同時也對髮射時選擇閤適彈位具有指導意義。
침대발사정도문제,이용빈보분석기술연구료함재도탄발사탄위적영향。기우수정적Craig-Bampton법화허의양궤기술,건립료선박운동화도탄발사강유우합일체화모형。이용발사시간삼수화각본어언,실현료자동방진,획취료대량공황하불동탄위적도탄출통자태,학정료악렬발사탄위。기우쾌속부리협변환법(FFT)대도탄동역학향응진행료빈보분석,명학료발사탄위화발사정도적관계。의거연구결과,능구근거선박적구체운동형식,설계무기계통방치적위치,동시야대발사시선택합괄탄위구유지도의의。
In allusion to the problem of launching precision,the effect of shipborne missile launch position was analysed based on the modified Craig-Bampton method and the spectrum analysis technology.A rigid-flexible coupling integrative model of ship movement and missile launch was built by using the virtual prototype technology.Meanwhile,to get the missile muzzle attitude parameters at different launch position,the launch time parameterized scripting language was used.Finally,the spectrum analysis based on FFT was used to analyze the missile dynamic responses,and the relationship between launch position and launching accuracy was established.Through the study,the launching position of the weapon system can be designed according to the specific motion characteristics of a ship.Furthermore,the result is also constructive to the selecting of suitable launching position.