基于Matlab实现人字架结构尺寸优化设计（源码）.rar

计算结果： max Directional First-order Iter F-count f(x) constraint Step-size derivative optimality Procedure 0 3 1.73329e+006 -40 1 7 880958 -41.65 0.5 -1.42e+006 4.65e+005 2 11 778317 -34.75 0.5 -2.04e+005 5.46e+004 3 15 733855 -27.57 0.5 -8.95e+004 2.8e+004 4 19 712302 -13.03 0.5 -4.34e+004 1.35e+004 5 23 701688 -6.281 0.5 -2.13e+004 7.36e+003 6 27 696432 -3.074 0.5 -1.05e+004 3.72e+003 7 31 693820 -1.519 0.5 -5.23e+003 1.87e+003 8 35 692519 -0.7551 0.5 -2.61e+003 935 9 38 691219 0.004675 1 -1.3e+003 2.25 10 41 691220 9.639e-008 1 1.27 0.181 11 44 691220 1.137e-013 1 5.35e-005 5.88e-005 Hessian modified Optimization terminated: first-order optimality measure less than options.TolFun and maximum constraint violation is less than options.TolCon. Active inequalities (to within options.TolCon = 1e-006): lower upper ineqlin ineqnonlin 1 2 ******** 人字架结构尺寸优化设计最优解 ******** 钢管平均直径 D = 47.5144 mm 人字架高度 H = 529.2580 mm 人字架体积 V = 691219.9363 mm^3 ======== 最优点的性能约束函数值 ======== 人字架钢管压缩强度 g1 = 0.0000 MPa 人字架钢管稳定性 g2 = 0.0000 MPa