通过建立复合材料格栅结构单元的基本力学假设和分析模型,推导了一种新的等效刚度计算方法,用于分析复合材料格栅加筋板的总体稳定性.该方法充分考虑了筋条和面板的相互作用和中面偏移效应,并具有通用性.结合Rayleigh-Ritz能量近似法,推导出了求解加筋板总体屈曲载荷的通用特征方程;分析了多种算例,并与修正平铺法进行了比较,结果吻合得很好.
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