基于<strong>NSGA-Ⅱ</strong>和<strong>TOPSIS</strong>法的横波可控震源振动器平板疲劳寿命优化

基于NSGA-Ⅱ和TOPSIS法的横波可控震源振动器平板疲劳寿命优化

陈振,冉庆杰,英晓洋,陈能鹏,魏超成,王乔木

Fatigue life optimization of sheer wave vibroseis vibrator baseplate based on NSGA-Ⅱ and TOPSIS method

Zhen CHEN,Qingjie RAN,Xiaoyang YING,Nengpeng CHEN,Chaocheng WEI,Qiaomu WANG

表6 各向焊接残余应力与正、负理想解的贴近度及其排序

Table 6 Closeness degree and sequence of welding residual stresses in all directions to their positive and negative ideal solutions

性能指标	$d_{j}^{+}$	$d_{j}^{-}$	η_j	排序结果
X向焊接残余应力	0.085 5	0.146 4	0.631 2	1
Y向焊接残余应力	0.143 5	0.114 3	0.443 3	3
Z向焊接残余应力	0.114 3	0.142 8	0.555 5	2