【摘要】 通过对三维编织复合材料圆柱壳进行屈曲和应力分析,对三维编织复合材料高压储气瓶的临界载荷、强度和应力分布等进行了数值计算,结果表明,屈曲对三维编织复合材料高压储气瓶使用性能的影响非常显著。基于圆形四步法三维编织工艺及理论分析,提出了三维编织复合材料高压储气瓶的结构优化设计数学模型。算例表明,该优化设计方法效果很好。更多还原

【Abstract】 Through analysis of buckling and stress for a composite cylindrical shell, such technique targets as critical load, strength and stress distribution of 3D-braided composite cylindrical shells were calculated numerically. These results indicate that the effect of buckling on the 3D-braided composite CNGV is very remarkable. Based on the 4-step 3D circular braiding procedure and the theoretical analysis mentioned above, a mathematic model about the structural optimum design of 3D-braided CNGV was proposed. According to this model, the calculated example shows better results.更多还原