Analysis of Vibration Transmission Path in Packaging System and Design of Teaching Experiment

Table 4

Vibration contribution of cushion liner in each main resonance area and equal contribution rate.

Resonance peak frequency		Computer motherboard	1	2	3	4
First main resonance peak (4 Hz)	Vibration response (g)	0.2226	0.134	0.030	0.0536	0.0060
	The contribution rate of cushion liner etc. (%)		60	13.4	24	2.6
Second main resonance peak (25 Hz)	Vibration response (g)	0.403	0.115	0.142	0.084	0.062
	The contribution rate of cushion liner etc. (%)		28.5	35.2	20.8	15.5
Cushion liner weighted equal contribution rate (%)			40	27	22	11