Page 34 - 《应用声学》2023年第2期

222 2023 年 3 月

TL/dB TL/dB
100 100
10 10
90 90
20 20
30 80 30 80
40 70 40 70
ງए/m 50 ງए/m 50
60 60 60 60
70 50 70 50
80 80
40 40
90 90
100 30 100 30
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10
ᡰሏ/km ᡰሏ/km
(a) OAST F=200 Hz, SD=50 m (b) Krakenc F=200 Hz, SD=50 m
图 6 Biot-Stoll 和 EDFM 计算的水中声场分布比较
Fig. 6 Comparison of the sound field calculated based Biot-Stoll and EDFM

OASTܳߘुভӧ௄ᬍ๒अ Krakenc኎஍ࠛएืʹവیԦ࠱ጇ஝
30 30 30
40 40 40
50
50
50
͜୧૯ܿ/dB 60 ͜୧૯ܿ/dB 60 ͜୧૯ܿ/dB 60
70
70
70
80 80 80
90 90 90
100 100 100
0 2 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10
ᡰሏ/km ᡰሏ/km ᡰሏ/km
(a) F=2000 Hz, SD=50 m, RD=10 m (b) F=2000 Hz, SD=50 m, RD=50 m (c) F=2000 Hz, SD=50 m, RD=90 m

图 7 Biot-Stoll 和 EDFM 计算的水中传播损失比较
Fig. 7 Comparisons of transmission loss calculated based on Biot-Stoll and EDFM

TL/dB TL/dB
100 100
10 10
90 90
20 20
30 80 30 80
40 70 40 70
ງए/m 50 60 ງए/m 50 60
60
60
70 50 70 50
80 80
40 40
90 90
100 30 100 30
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10
ᡰሏ/km ᡰሏ/km
(a) OAST F=2000 Hz, SD=50 m (b) Krakenc F=2000 Hz, SD=50 m
图 8 Biot-Stoll 和 EDFM 计算的水中声场分布比较
Fig. 8 Comparison of the sound field calculated based on Biot-Stoll and EDFM