Crankshaft Optimization Based on Experimental Design and Response Surface Method

Table 4

Size parameters setting.

No.	Description of the size parameters	Symbol	Initial value (mm)	Variation range (mm)
1	Main journal diameter	x1	55.0	49.5∼60.5
2	Fillet radius of the crankpin	x2	3.50	3.15∼3.85
3	Crankpin diameter	x3	48.0	43.2∼52.8
4	Fillet radius of the main journal	x4	4.00	3.6∼4.4