随机桁架结构几何非线性问题的混合摄动-伽辽金法求解1)
黄斌(),贺志赟,张衡
HYBRID PERTURBATION-GALERKIN METHOD FOR GEOMETRICAL NONLINEAR ANALYSIS OF TRUSS STRUCTURES WITH RANDOM PARAMETERS1)
Huang Bin(),He Zhiyun,Zhang Heng

图4. 函数$Z_{1}$的概率密度函数曲线

Fig. 4. Probability density function curve of function $Z_{1}$