Multiobjective Topology Optimization of Spatial-Structure Joints

Table 1

Definition of importance scale of judgment matrix A.

Scaling (aij)	Importance
1	i and j are equally important
3	i is slightly more important than j
5	i is obviously more important than j
7	i is far more important than j
9	i is significantly more important than j
1/3	j and i are equally important
1/5	j is obviously more important than i
1/7	j is far more important than i
1/9	j is significantly more important than i
2, 4, 6, 8	The middle of each scale