固体火箭技术
固體火箭技術
고체화전기술
Journal of Solid Rocket Technology
2015年
5期
707-711
,共5页
陈科%任全彬%尤军峰%王立强
陳科%任全彬%尤軍峰%王立彊
진과%임전빈%우군봉%왕립강
人工神经网络算法%有限元静力分析%喷管防水板%结构优化
人工神經網絡算法%有限元靜力分析%噴管防水闆%結構優化
인공신경망락산법%유한원정력분석%분관방수판%결구우화
artificial neural network algorithm%finite element static analysis%the waterproof board of the nozzle%structure opti-mization
用人工神经网络算法,对某型导弹固体火箭发动机喷管防水板结构的5个参数进行了研究. 模拟得到了防水板在中心受到?150 mm、大小为10 t压头的最差工况下的变形与应变,并与试验对比验证数值模拟的正确性. 以防水板最大主应力和最小质量为目标函数,获得了目标函数随设计变量的曲线关系,并对参数进行了灵敏度分析. 优化能有效减轻防水板质量,较传统设计方法使其质量下降了45.95%,优化结果可指导发动机防水板结构的优化设计.
用人工神經網絡算法,對某型導彈固體火箭髮動機噴管防水闆結構的5箇參數進行瞭研究. 模擬得到瞭防水闆在中心受到?150 mm、大小為10 t壓頭的最差工況下的變形與應變,併與試驗對比驗證數值模擬的正確性. 以防水闆最大主應力和最小質量為目標函數,穫得瞭目標函數隨設計變量的麯線關繫,併對參數進行瞭靈敏度分析. 優化能有效減輕防水闆質量,較傳統設計方法使其質量下降瞭45.95%,優化結果可指導髮動機防水闆結構的優化設計.
용인공신경망락산법,대모형도탄고체화전발동궤분관방수판결구적5개삼수진행료연구. 모의득도료방수판재중심수도?150 mm、대소위10 t압두적최차공황하적변형여응변,병여시험대비험증수치모의적정학성. 이방수판최대주응력화최소질량위목표함수,획득료목표함수수설계변량적곡선관계,병대삼수진행료령민도분석. 우화능유효감경방수판질량,교전통설계방법사기질량하강료45.95%,우화결과가지도발동궤방수판결구적우화설계.
Five parameters of waterproof board( WB) for the SRM of some type of missile were investigated using artificial neu-ral network algorithm (ANN).The objective function employed in the present work was the max stress and the min mass of the SRM waterproof board which bears a hydraulic pressure.The deformation and the strain of the waterproof board under the force of 10 t at center position were obtained,and the correctness of the numerical simulation was verified by comparing to the experimental results. The objective function vs. design variables curves were plotted,and the parameters sensitivity analysis were carried out.Optimization can decrease the mass of the waterproof board effectively by 45. 59% compared to traditional methods. The results obtained can be used as a guidline for the optimal structure design of the SRM waterproof board.