Table 3: Comparison of GA and SQP results.

Objective function value (minimum friction variable)
GA resultsSQP results

0.10025.84125.841
0.20012.57512.575
0.3007.9917.991
0.4005.6035.603
0.5004.0504.050
0.6003.0233.023
0.7002.1462.146
0.8001.5011.501
0.9000.3580.358