Discrete optimization design for cabin-skeleton coupling structure of blended-wing-body underwater glider

设计变量类型	参数	设计下限	设计上限	离散间隔
骨架结构设计变量	$C_{{l_6}}^i$	0	1	1
	l1	270 mm	290 mm	0.5
	l3	0.1	0.35	0.01
	l4	0.45	0.55	0.01
	l5	0.65	0.9	0.01
舱体结构设计变量	R1	65 mm	90 mm	0.5
	R2	75 mm	100 mm	0.5
	R3	20 mm	30 mm	0.5
	t5	8 mm	15 mm	0.5
	t6	8 mm	15 mm	0.5
	t7	8 mm	15 mm	0.5
	GC	350 mm	450 mm	1

Table 2. Comparison of discrete parameters of wing ribs
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Table 2. Comparison of discrete parameters of wing ribs
参数 DoE最优全局最优
$N_{{l_6}}^1$ 1 0
$N_{{l_6}}^2$ 1 1
$N_{{l_6}}^3$ 1 0
$N_{{l_6}}^4$ 0 1
$N_{{l_6}}^5$ 1 0
$N_{{l_6}}^6$ 1 0

Table 3. Comparison of other parameters of coupling structure
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Table 3. Comparison of other parameters of coupling structure
参数 DoE最优全局最优
l₁/mm 282.5 290
l₃ 0.25 0.15
l₄ 0.45 0.51
l₅ 0.7 0.88
R₁/mm 91.5 100
R₂/mm 78 90
R₃/mm 26 24
t₅/mm 8 8
t₆/mm 9.5 8
t₇/mm 14 12
G_C/mm 442 401

Table 4. Comparison of output results

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Table 4. Comparison of output results

参数	DoE最优	全局最优
m1 /kg	12.310 7	11.173 6
m2 /kg	16.570 9	17.611 8
v/m3	0.023 2	0.032 4
B/G	0.804 4	1.125 7
σc /MPa	217.582 3	233.502 3
${\sigma _{\rm{sk}}}$/MPa	84.272 2	136.325 4
${P_{\rm{cr}}}$ /MPa	67.305 7	41.594 2
dmax /mm	32.301 2	49.682 9

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Huachao DONG, Peng WANG, Yijin ZHANG. Discrete optimization design for cabin-skeleton coupling structure of blended-wing-body underwater glider[J]. Chinese Journal of Ship Research, 2021, 16(4): 70

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