An analysis of post - buckling of extensible rods with variable cross sections and clamped - simply supported ends 可伸長變截面桿的彈性過屈曲模型及其數值解
In this paper , the method combined with curvature mode shape , finite element method ( fem ) , artificial neural networks ( ann ) and genetic algorithms ( ga ) is applied . the optimization of a taper trunk beam of variable cross section under impact load can be obtained on the base of considering the objectives of minimum gross mass and the condition of constrain of dynamic stress 本文采用了曲率模態、有限元、神經網絡和遺傳算法相互結合的方法,對承受沖擊載荷作用的變截面懸臂箱型梁,在動應力滿足材料許用應力的約束下,以質量最小為目標函數,做了優化設計方面的研究。