CAJ | 학술논문

对某导弹发射箱复合柔性盖进行了有限元建模和大变形非线性分析。根据盖体防脱落结构采用复合材料层合板模型或准各向同性材料模型将建模方法分为两种，对两种建模方法在计算精度和时间上进行了比较，确定了更优建模方式。此外，对各设计变量对盖体最大变形的影响进行了分析，找出盖体最大变形与各设计变量的关系曲线，得出纤维绳预紧力为影响盖体变形的主要因素的结论，为柔性盖的设计提供技术支持。
대모도탄발사상복합유성개진행료유한원건모화대변형비선성분석。근거개체방탈락결구채용복합재료층합판모형혹준각향동성재료모형장건모방법분위량충，대량충건모방법재계산정도화시간상진행료비교，학정료경우건모방식。차외，대각설계변량대개체최대변형적영향진행료분석，조출개체최대변형여각설계변량적관계곡선，득출섬유승예긴력위영향개체변형적주요인소적결론，위유성개적설계제공기술지지。
As for a compound flexible missile launch tube cover, finite element modeling and large deformation nonlinear analysis are carried out in this paper, in which the drop-proof structure is modeled with composite laminate model or quasi-isotropic model, which divides the modeling method into 2 types. By comparing the computing accuracy and CPU time, the better modeling method is determined. Then, influence of design variables on the maximum deformation of the cover is analyzed, and the relation curve of the maximum deformation of the cover versus the design variables is obtained. Conclusion is made that the fiber preload is the main factor of the cover deformation, which could be a technical support to the flexible cover design.