Random field modeling method for quantizing initial defects in spherical shell structures

Abstract

This invention provides a random field modeling method that accurately quantizes the intrinsic correlation of initial defects in a spherical shell and further improves the accuracy of spherical shell performance analysis. [Solution] A random field modeling method for quantizing initial defects in a spherical shell structure includes: determining simulation spherical shell data corresponding to a target spherical shell, including geometric information and material information of the spherical shell; determining a target correlation function and representative discrete points corresponding to the target spherical shell based on the geometric information and material information of the spherical shell; determining a correlation coefficient matrix based on the target correlation function and representative discrete points; decomposing the feature values ​​of the correlation coefficient matrix to obtain a standard random field; and performing a random field transformation on the standard random field based on a random field transformation formula to obtain a target random field corresponding to the target spherical shell.

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