Table 3 Predicted results and relative errors of welding verification samples.

From: Prediction and optimization method for welding quality of components in ship construction

Sample number

Actual residual stress

The predicted value of the APB algorithm

Analysis error (%)

1

222

232.6586548

4.80120

2

198

184.3617309

6.88801

3

131

124.1711304

5.21288

4

121

129.667395

7.16314

5

191

180.4715942

5.51225

6

218

234.529187

7.58220

7

211

222.0158325

5.22077

8

226

207.5712036

8.15433

9

134

126.2844116

5.75790

10

105

112.8535766

7.47960

…

…

…

…

67

267

249.984624

6.37280

68

112

102.430384

8.54430

69

108

100.71648

6.74400

70

165

177.15126

7.36440

71

119

108.67794

8.67400

72

156

165.30852

5.96700

73

221

206.90462

6.37800

74

109

99.57804

8.64400