基于单筋计算复合材料工型加筋壁板的工程优化  

Engineering optimization of composite stiffened plate based on single-stringer mechanic behavior

作　　者：田岚 刘兴宇[1] 吴德财[1] Tian Lan;Liu Xingyu;Wu Decai(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《江苏科技信息》2018年第26期53-55,共3页Jiangsu Science and Technology Information

摘　　要：文章针对复合材料工型加筋板的几何设计参数的快速优化问题,提出了一种以单筋结构力学性能计算为基础的工程优化方法。以轴向压缩工况为例,综合考虑了蒙皮失稳、筋条侧向失稳和单筋结构整体压溃等失效模式,对筋条的几何尺寸等设计参数进行工程优化,并通过单筋结构的拓扑,在多筋加筋板结构上验证了单筋优化的有效性,此方法简单直接,避免了此类具有离散参数的复合材料结构采用遗传算法进行优化计算时的烦琐过程和大量时间耗费,对工程设计具有参考价值。Aiming at the rapid optimization of geometric design of composite I-stiffened plates, an engineering optimization method based on the mechanical properties calculation of single-stiffened structures is proposed. Taking axial compression as an example, considering the failure modes of skin failure, lateral buckling of stringer and final global buckling, the geometric dimensions of ribs and other design parameters are optimized. The validity of single-stringer optimization in multi-stringer plate structure is verified by the topology of single-stringer. The method is simple and straightforward. Then, it avoids the tedious process and a large amount of time consuming when using genetic algorithm to optimize the composite structure with discrete parameters, which is of reference value to engineering design.

关 键 词：复合材料 工型加筋板 参数优化 单筋结构 

分 类 号：V214.19[航空宇航科学与技术—航空宇航推进理论与工程]