A Novel Sensitivity Analysis Method in Structural Performance of Hydraulic Press

Table 2

The results of modal analysis and orthogonal experimental data with the upper beam.

Six factors and five levels	𝑋1	𝑋2	𝑋3	𝑋4	𝑋5	𝑋6	𝑌
	The upper and lower plate thickness	The left and right plate thickness	The front and back plate thickness	The front and back rib plate thickness	The left and right rib plate thickness	The ramp plate thickness	The natural frequency
1	156	116	128	157	120	38	164.10
2	158	116	134	159	124	42	163.78
3	160	116	132	151	122	36	164.63
4	162	116	126	155	116	40	165.39
5	164	116	130	153	118	44	165.26
6	156	118	130	155	122	42	163.53
7	158	118	128	153	116	36	164.55
8	160	118	134	157	118	40	164.31
9	162	118	132	159	120	44	164.53
10	164	118	126	151	124	38	165.30
11	156	120	126	159	118	36	164.01
12	158	120	130	151	120	40	163.90
13	160	120	128	155	124	44	164.03
14	162	120	134	153	122	38	164.43
15	164	120	132	157	116	42	164.96
16	156	122	132	153	124	40	163.05
17	158	122	126	157	122	44	163.66
18	160	122	130	159	116	38	164.34
19	162	122	128	151	118	42	164.54
20	164	122	134	155	120	36	164.77
21	156	124	134	151	116	44	162.88
22	158	124	132	155	118	38	163.58
23	160	124	126	153	120	42	164.01
24	162	124	130	157	122	36	164.36
25	164	124	128	159	124	40	164.56