Multidisciplinary design optimization of non-uniform stiffened cylindrical shells

Jingru LI; Jiang LIU; Sheng LI

doi:10.19693/j.issn.1673-3185.02111

Chinese Journal of Ship Research, Volume. 16, Issue 4, 63(2021)

Multidisciplinary design optimization of non-uniform stiffened cylindrical shells

Jingru LI¹, Jiang LIU², and Sheng LI²

Author Affiliations

¹Mechanical and Electrical Engineering College, Hainan University, Haikou 570228, China

²State Key Laboratory of Structural Analysis for Industrial Equipment, School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China

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Abstract Get PDF(in Chinese)

Figures & Tables(7)

Fig. 1. [in Chinese]

Fig. 2. [in Chinese]

Fig. 3. [in Chinese]

Table 1. Design variables and their range
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Table 1. Design variables and their range
设计变量取值范围设计变量取值范围
$l/{\rm{mm}}$ 80~120 ${{{h}}_2}/{\rm{mm}}$ 200~300
$\Delta l/{\rm{mm}}$ 88~132 ${{{h}}_3}/{\rm{mm}}$ 96~144
${{{h}}_1}/{\rm{mm}}$ 216~324 $t/{\rm{mm}}$ 22.4~33.6

Table 2. Responses calculated by surrogate model and conventional numerical model

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Table 2. Responses calculated by surrogate model and conventional numerical model

响应值	预测点1			预测点2
响应值	代理模型	常规模型	误差/%	代理模型	常规模型	误差/%
${\sigma _1}/{\rm{MPa}}$	−209	−202	3.5	−235	−229	2.93
${\sigma _2}/{\rm{MPa}}$	−465	−461	0.84	−518	−511	1.35
${\sigma _{\rm{f}}}/{\rm{MPa}}$	−382	−380	0.63	−421	−417	0.81
${{{f}}_1}/{\rm{Hz}}$	21.835 5	21.853 9	0.084 2	20.518 9	20.546 8	0.135 6
$W/{\rm{dB}}$	102.356	102.457	0.1	101.304	101.395	0.09

Table 3. Optimization results

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Table 3. Optimization results

响应值	初始值	改进目标传递法	传统目标传递法
响应值	预测点1	结果1	结果2
${\sigma _1}/{\rm{MPa}}$	−209	−280	−258
${\sigma _2}/{\rm{MPa}}$	−465	−573	−568
${\sigma _{\rm{f}}}/{\rm{MPa}}$	−382	−451	−451
${{{f}}_1}/{\rm{Hz}}$	21.835 5	20.287 9	19.378 4
$W/{\rm{dB} }$	102.355 8	101.479 9	100.530 6
$M/{\rm{kg}}$	76 548	64 179	63 069

Table 4. Deviation terms between system level and discipline level in conventional ATC
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Table 4. Deviation terms between system level and discipline level in conventional ATC
学科级与系统级之间的偏差值
$\Delta {\sigma _1}$ $\Delta {\sigma _2}$ $\Delta {\sigma _{\rm{f}}}$ $\Delta {{{f}}_1}$ $\Delta W$ $\Delta M$
0.122 0.04 21 0.047 5 0.171 9 0.037 6 0.014 3

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Jingru LI, Jiang LIU, Sheng LI. Multidisciplinary design optimization of non-uniform stiffened cylindrical shells[J]. Chinese Journal of Ship Research, 2021, 16(4): 63

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Paper Information

Category:

Received: Sep. 14, 2020

Accepted: --

Published Online: Mar. 28, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.02111

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Design variables and their range

Table 1. Design variables and their range

Table 2. Responses calculated by surrogate model and conventional numerical model

Table 2. Responses calculated by surrogate model and conventional numerical model

Table 3. Optimization results

Table 3. Optimization results

Table 4. Deviation terms between system level and discipline level in conventional ATC

Table 4. Deviation terms between system level and discipline level in conventional ATC