Vibration Test and Shock Absorption of Coal Crusher Chambers in Thermal Power Plants (II): Numerical Analysis

Table 10

Positions of spring vibration isolators in model.

Spring vibration isolators	Original model		The model with an eccentricity of 5%		The model with an eccentricity of 10%
	X	Y	X	Y	X	Y
1	0	0	0	0	0	0
2	0.48	0	0	0	0	0
3	0.96	0	0.48	0	0.48	0
4	1.44	0	0.96	0	0.96	0
5	1.92	0	1.44	0	1.44	0
6	2.4	0	1.92	0	1.92	0
7	0	3.585	0	3.585	0	3.585
8	0.48	3.585	0.48	3.585	0	3.585
9	0.96	3.585	0.96	3.585	0.48	3.585
10	1.44	3.585	1.44	3.585	0.96	3.585
11	1.92	3.585	1.92	3.585	1.44	3.585
12	2.4	3.585	2.4	3.585	1.92	3.585
13	0	4.335	0	4.335	0	4.335
14	0	5.085	0	5.085	0	5.085
15	0	6.085	0	6.085	0	6.085
16	0	7.085	0	7.085	0	7.085
17	2.4	4.335	2.4	4.335	2.4	4.335
18	2.4	5.085	2.4	5.085	2.4	5.085
19	2.4	6.085	2.4	6.085	2.4	6.085
20	2.4	7.085	2.4	7.085	2.4	7.085
Center of rigidity	1.2	—	1.08	—	0.96	—
Center of mass	1.2	—	1.2	—	1.2	—
Relative error	0%	—	5%	—	10%	—