see Fig. 4 in the NSCC 2024 paper
1D-Fourier series - Curved plates without welds
imperfections assumed as being random
Random_collection_23-12-29.xlsx - collection of three sets of 30 random numbers
Random_collection_23-12-29.pdf
DFT_random_row_A_24-02-04.pdf - Fouerier coefficients for row A
DFT_random_row_B_24-02-04.pdf - Fouerier coefficients for row B
DFT_random_row_C_24-02-04.pdf - Fouerier coefficients for row C
see Fig. 5a in the NSCC 2024 paper
1D-Fourier series - weld depression
Rotter/Teng (1989); Teng/Rotter (1992)
see eq. 8 in the NSCC 2024 paper
norm_coeff_mat_24-02-05_Ldep010.dat - L,strake / L = 0,10
norm_coeff_mat_24-02-05_Ldep010.pdf
norm_coeff_mat_24-02-05_Ldep025.dat - L,strake / L = 0,25
norm_coeff_mat_24-02-05_Ldep025.pdf
norm_coeff_mat_24-02-05_Ldep050.dat - L,strake / L = 0,50
norm_coeff_mat_24-02-05_Ldep050.pdf
norm_coeff_mat_24-02-05_Ldep075.dat - L,strake / L = 0,75
norm_coeff_mat_24-02-05_Ldep075.pdf
norm_coeff_mat_24-02-05_Ldep100.dat - L,strake / L = 1,00
norm_coeff_mat_24-02-05_Ldep100.pdf
see Fig. 5b in the NSCC 2024 paper
2D-Fourier series - translatory weld depression
see eq. 4 in the NSCC 2024 paper
multiple weld depressions - use coefficients for 1D-Fourier series
compare Fig. 7a in the NSCC 2024 paper
2D-Fourier series - local bump
see eq. 5 in the NSCC 2024 paper
D = 15.916 mm; C = 50.002 mm; L = 20.000 mm
d,bump = 3.000 mm; Amp = 10 mm; x0/C = 0,30; y0/L = 0,30;
Coefficient matrix A
Coefficient matrix A.pdf
Coefficient matrix B
Coefficient matrix B.pdf
exemplary project
2D-Fourier series - local bump
see eq. 5 in the NSCC 2024 paper
D = 12.600 mm; C = 39.584 mm; L = 8.300 mm
d,bump = 2.000 mm; Amp = 10 mm; x0/C = 0,101; y0/L = 0,50;
.dat files are written with "9999" as separators between values
use an editor to change these into convenient delimiters, such as comma, semicolon, blank, ...
Coefficient matrix A.dat
Coefficient matrix A.xlsx
Coefficient matrix B.dat
Coefficient matrix B.xlsx