The invention provides a bolt
assembly process response inversion and regulation method based on digital twinning, and belongs to the field of digital twinning
assembly. The method comprises the following steps: 1) based on a
simulation result of a to-be-assembled structure, establishing a pre-tightening force inversion model and a
flange deformation prediction model; 2) based on a
simulation result, calculating an elastic interaction
coefficient matrix and a correction
factor matrix under a deviation condition, and training a correction factor online correction model; 3) during
assembly, inverting the pre-tightening force of each bolt, calculating a correction factor and a pre-tightening force error, and calculating a
flange deformation variance; and 4) when the assembly error exceeds an allowable value, predicting a global correction
factor matrix based on the local correction
factor matrix, carrying out subsequent assembly strategy optimization, reducing a
flange deformation variance and a pre-tightening force error, and guiding assembly regulation and control. According to the method, through high-precision digital twinborn inversion of structural response in the assembly process, accurate regulation and control of assembly errors are achieved in combination with the assembly mechanism of online correction, and the bolt assembly regulation and control cost can be greatly reduced.