Level 3 Level 4 Level 5 Level 6
A I I + hole II II + hole III III + hole
B 20 30 40 – – –
C 15 25 35 – – –
D 15 25 35 – – –
E 20 30 40 – – –
F 20 30 40 – – –
G 20 30 40 – – –
Unit for B–G is mm.
M. Mori et al. / CIRP Annals - Manufacturing Technology 58 (2009) 331–334 333
Table 2
L18 orthogonal array and result of analyses.
Analysis model No. Control factor A B
C
D
E
F
G X (mm) Y (mm) h (db) S (mm)
1 1 1 1 1 1 1 1 0.023 0.162 35.7 0.012
2 1 2 2 2 2 2 2 0.030 0.160 33.6 0.015
3 1 3 3 3 3 3 3 数控车床主轴箱优化设计英文文献和中文翻译(3):http://www.751com.cn/wenxian/lunwen_76059.html