基于序贯设计和高斯过程模型的结构动力不确定性量化方法

万华平,张梓楠,周家伟,任伟新

Uncertainty quantification of structural dynamic characteristics based on sequential design and Gaussian process model

Huaping WAN,Zinan ZHANG,Jiawei ZHOU,Weixin REN

表 5 自适应GPM、GPM和MCS法的均值和方差计算结果对比（第4阶固有频率）

Tab.5 Comparison of mean and variance adaptive GPM, GPM and MCS (fourth natural frequency)

方法 均值 方差 均值相对误差/% 方差相对误差/% 计算时间/s 自适应GPM (27) 29.896 9 4.557 6 0.003 3 0.362 2 14.3 GPM (44) 29.896 8 4.548 5 0.003 8 0.561 7 20.1 MCS 29.897 9 4.574 2 — — 1 789.2