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Table 2 The optimization results of numerical example obtained by proposed and previous algorithms

From: Optimization of Uncertain Structures with Interval Parameters Considering Objective and Feasibility Robustness

Algorithm

Optimal solution

Objective functions

Constraint functions

[f L, f R], \(\left\langle {f^{C} ,f^{W} } \right\rangle\)

[g L1 , g R1 ]

[g L2 , g R2 ]

Proposed

xo = (3.17, 0.02, 2.00)

[7.31,10.92], \(\left\langle {9.11,\;1.80} \right\rangle\)

[10.00, 12.41]

[7.55, 9.94]

Previous

x* = (3.11, 0.20, 2.08)

[7.62,11.31], \(\left\langle {9.47,\;1.84} \right\rangle\)

[9.58, 12.00]

[7.98, 10.53]