纤维缠绕固体火箭发动机壳体的力学数值仿真

摘要

针对某种纤维缠绕复合材料固体火箭发动机壳体，依据原壳体在ABAQUS中建立了有限元模型，建模过程中将纤维缠绕层视为层合板来处理，简化了模型，并对发射瞬态进行有限元数值计算，分别求出了环向层6层的应力和缠绕层6层的应力，以便于强度分析，并对于铺层方案进行求解，得出数据结论，数据结果与实际情况符合，研究结果为纤维缠绕固体火箭发动机优化分析提供了理论依据。%Aiming at some certain kind of filament￣wound composite solid rocket motor shel,on the basis of the original shel,the fi￣nite element model is established. During the process of modeling,the filament winding layers are regarded as the laminated plate,and the finite element numerical calculation of the instantaneous state of the firing is done. Throug the stress calculation,its strength is analyzed to find the way of laying down that it needs to meet the strength requirement. The results provide a theoretical basis for better analysis of filament￣wound solid rocket motor.