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提出基于信息融合技术的结构模型修正法.在概率思维条件下,采用二次响应面代替有限元模型,通过调整融合系数实现先验信息和实测信息的融合,并利用响应面自身特性和精度要求进行迭代修正.该方法计算量小,程序化高,易于工程应用,还可推广至非线性等复杂情况.某抽水蓄能电站地下厂房结构的有限元模型修正结果验证了该方法的有效性.
The method of structural model modification based on information fusion technology is proposed.Under the condition of probabilistic thinking, the quadratic response surface is used instead of the finite element model, and the fusion coefficient is used to realize the fusion of the priori information and the measured information. Iterative correction.The method has the advantages of small calculation amount, high program, easy engineering application and generalization to complex conditions such as nonlinear.The finite element model modification results of a underground powerhouse of a pumped storage power station validate the effectiveness of the method.