The invention discloses a Bayesian
polynomial chaos neural network proxy
model method, and belongs to the technical field of
sandwich board structure optimization design and proxy models. The method comprises the following steps: firstly, determining
structural composition, size association and design parameters of the Y-shaped
sandwich panel, constructing an automatic modeling script file, and simulating a drop hammer
impact experiment process; secondly, generating a
data set required by optimization of the Y-shaped
sandwich panel, completing preprocessing, determining a protection performance evaluation index and an optimization target, and generating effective sample data; thirdly, training the proxy model based on the
training set and the
verification set; finally, multi-objective optimization design is carried out,
design space is explored, a
Pareto solution set is obtained, and a comprehensive optimal solution is selected. Through cooperation of the high-precision efficient proxy model and the intelligent optimization
algorithm, the design period is shortened, the
design space exploration range is expanded, the
energy absorption protection effect is remarkably improved while the light weight of the Y-shaped
sandwich panel is achieved, and reference is provided for
engineering application and optimization design of the Y-shaped sandwich panel.