Wing skin damage identification method based on support vector machine and optical fiber sensing technology

The invention discloses a wing skin damage identification method based on a support vector machine and an optical fiber sensing technology, and the method comprises the following steps: building a three-dimensional model of a wing skin, and carrying out the modal analysis of the three-dimensional model of the wing skin, so as to obtain a modal shape matrix; effective independent coefficients of the modal shape matrix are calculated, a decline function is applied to the effective independent coefficients, and fiber grating sensor distribution positions are determined through modal confidence factors; acquiring fiber bragg grating sensing signals when the wing skin is in a normal condition and different positions are impacted to different degrees, and performing signal fusion of a support degree matrix method on the multiple fiber bragg grating sensing signals; extracting fusion signal features, and constructing a training set; and establishing a support vector machine model, and performing wing skin damage ide