摘要
基于数值仿真分析方法,针对某航天器结构中的十字梁结构进行了优化设计。依据结构承载特点,优化了传力路径,合理地设计了加强区域以及铺层顺序,并采用复合材料整体铺设成型工艺制备了试验件。试验结果表明,经过优化设计,十字梁结构重量由699 g降低到436 g,减重达37.6%,在6000 N压缩载荷作用下的最大变形由0.33 mm降低到0.19 mm,满足其刚度设计要求。
Based on the numerical method, the work of optimizing composite crossed beam structures in space- craft was conducted in this paper. The load-transferred path was optimized depending upon the load-bearing structure components. Furthermore, the enhanced region and lay-up of T700 unidirectional carbon/epoxy prepregs were reasonably presented, while the specimen was fabricated integrally by manual molding technology. The experi- mental results demonstrate that the weight of this crossed beam is reduced from 966 g to 436 g, up to 37.5%; the maximum deformation is reduced from 0. 33 mm to 0. 19 mm under the 6000 N compressive load, which satisfied the stiffness demand.
出处
《玻璃钢／复合材料》
CSCD
北大核心
2017年第5期84-88,共5页
Fiber Reinforced Plastics/Composites
关键词
十字梁
复合材料
重量
刚度
crossed beam
composite
weight
stiffness
