基于改进MCMC算法和代理模型的结构仿真模型更新

缪季, 段立平, 刘吉明, 林思伟, 赵金城

Structural Simulation Model Updating Based on Improved MCMC Algorithm and Surrogate Model

MIAO Ji, DUAN Liping, LIU Jiming, LIN Siwei, ZHAO Jincheng

表6 更新前后频率对比

Tab.6 Comparison of frequencies before and after updating

模态 频率/Hz 实测值 初始值 MH 更新值 WO-MH 更新值 X方向一阶 12.761 18.707 13.088 13.069 Y方向一阶 13.381 19.207 13.615 13.474 X方向二阶 49.370 61.607 47.878 49.385 Y方向二阶 50.508 62.051 48.545 49.864