Surrogate-Assisted Multiobjective Evolutionary Algorithms for Structural Shape and Sizing Optimisation

Table 1

Design variables and bounds for F1–F6.

Design variables	Bounds (mm)
𝑥1=𝑙𝑑	0≤𝑙𝑑≤60
𝑥2=𝑙𝑝	100≤𝑙𝑝≤200
𝑥3=𝑟𝑝1	15≤𝑟𝑝1≤35
𝑥4=𝑟𝑝2	15≤𝑟𝑝2≤30
𝑥5=th	3≤th≤4.5