论文部分内容阅读
针对空天飞机带边条三角翼,设计了参数化的等百分比布置的多腹板结构和平行布置的多腹板结构两种方案,并采用有限元方法对比分析了两种结构方案在亚声速、跨声速、超声速、高超声速等多种工况下的强度、刚度特点,估算其结构重量,得到了平行多腹板式结构在受力特性与重量方面优于等百分比多腹板式结构的结论。然后基于平行多腹板式结构,对机翼腹板、蒙皮、翼肋厚度进行了优化,减轻了设计机翼的结构重量,可以为空天飞机机翼结构设计提供参考。
Aiming at the spacecraft delta wing with side trim, two schemes of parametric equal-percentage-arranged multi-web structure and parallel web structure are designed. The finite element method is used to compare the two schemes in subsonic speed , Transonic speed, supersonic speed, hypersonic speed and so on under various working conditions, the structure weight is estimated, and the conclusion is obtained that the parallel multi-web structure is superior to the equal-percentage multi-web structure in terms of stress characteristics and weight. Based on the parallel multi-web structure, the thickness of wing webs, skins and ribs are optimized to reduce the structural weight of the designed wing and provide a reference for the design of wing structure.