Research on Power Flow Transmission through Elastic Structure into a Fluid-Filled Enclosure

Table 1

Coupled natural frequencies with different number of water sound modals involved.

	Fluid-structural coupled natural frequency  (Hz)
Number of water sound modals involved	50	200	500	1000	2000
Number of plate modals involved	50	50	50	50	50
0	0	0	0	0	0
1	106.8	103.1	101.5	100.9	100.3
2	218.5	208.4	206.0	203.9	202.5
3	234.4	222.7	217.6	215.5	213.4
4	291.1	270.9	264.7	262.2	259.7
5	447.6	415.1	404.7	400.2	395.9
6	455.4	420.7	409.1	404.5	399.8
7	476.1	457.3	451.8	447.1	443.9
8	561.9	543.1	537.2	533.4	530.5
9	626.7	581.5	566.2	559.0	552.3
10	682.5	617.7	599.4	592.1	584.7