By analyzing the concept of gradient variable-threshold and pointing out its weakness,the author proposes the concept of modified gradient threshold and combines it with the strategy of constraint compensation to form a new kind of topology optimization algor.
为了能够有效地降低飞机结构承力件的重量,针对飞机骨架,以加强框和普通框以及翼梁的概念设计为研究内容,通过对“敏度阈值”概念的分析,指出其不足,提出了“改进的敏度阈值”概念,并与“约束补偿”策略结合而形成新的拓扑优化算法,用于上述结构件的材料布局优化设计。
In view of defects of“gradient variable-threshold”concept used in the conceptual design of aircraft reinforced frames,a “modified gradient variable-threshold”concept is set forth and,in combination with a constraint compensation strategy,forms a new topology optimization algorithm for reinforced frame structural layout to minimize the weight of airframe load-carrying members.
为了能够有效地降低飞机结构承力件的质量,针对飞机骨架,以加强框的概念设计为研究内容, 通过对“敏度阈值”概念的分析,指出其不足,提出了“改进的敏度阈值”概念,并与“约束补偿”策略结 合而形成新的拓扑优化算法,用于加强框的材料布局设计。