Finite element model correction method adopting improved differential evolution Markov chain

The invention discloses a finite element model correction method adopting an improved differential evolution Markov chain, which comprises the following steps of: 1, constructing a finite element model, and setting basic parameters of the finite element model; 2, introducing a random scale factor and a random vector; 3, candidate samples are selected in a directional difference mode; 4, calculating a posterior sample receiving probability, and judging whether the sample bandwidth is smaller than a set threshold value or not; if yes, executing the step 5; if not, executing the step 3; 5, randomly extracting samples from the candidate samples in a random difference mode; 6, calculating a posterior sample receiving probability, and judging whether an iteration termination condition is met or not; if not, executing the step 5; and if yes, correcting the characteristic value of the finite element model. The invention discloses a finite element model correction method adopting an improved differential evolution Mar