Table 3: Upper and lower bounds of the design variables.

Design variables Minimum Initial Maximum 1, Ps3 [] 0.733 0.733 0.808 2, Ps4 [] 0.224 0.399 0.494 3, Ph3 [] 0.275 0.400 0.525 4, Ph4 [] 0.504 0.629 0.679 5, Pt3 [angle] −40.0 −30.022 −5.0 6, Pt5 [angle] 15.0 46.949 70.0 7, Pb3 [angle] −50.0 −39.754 −28.0 8, Pb6 [angle] −50.0 80.409 90.0