Layout optimization design of hierarchical curvilinearly stiffened panels based on deep learning

设计变量	变量下限	变量上限
筋条1类型Case₁	1	7
筋条1起点P_s1	0	1
筋条1终点P_e1	0	1
筋条1中点P_mx1	0	1
筋条1中点P_my1	0	1
筋条2类型Case₂	1	7
筋条2起点P_s2	0	1
筋条2终点P_e2	0	1
筋条2中点P_mx2	0	1
筋条2中点P_my2	0	1
筋条3类型Case₃	1	7
筋条3起点P_s3	0	1
筋条3终点P_e3	0	1
筋条3中点P_mx3	0	1
筋条3中点P_my3	0	1
筋条4类型Case₄	1	7
筋条4起点P_s4	0	1
筋条4终点P_e4	0	1
筋条4中点P_mx4	0	1
筋条4中点P_my4	0	1
次级筋高H_rn	6.0	12.0
主级筋高H_rj	20.0	40.0
次级筋厚t_rn	1.0	1.5
主级筋厚t_rj	2.0	5.0
次筋横向数目N_x	7	14
次筋纵向数目N_y	7	14

Table 2. Predictive effects of three models on structural buckling bearing capacity and mass
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Table 2. Predictive effects of three models on structural buckling bearing capacity and mass
模型结构屈曲承载力预测效果结构质量预测效果
R²/% RMSE/% R²/% RMSE/%
RBF 41 25 70 15
Kriging 34 24 51 19
CNN 86 10 93 6

Table 3. Optimization results of four kinds of hierarchical stiffened structure with cutouts

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Table 3. Optimization results of four kinds of hierarchical stiffened structure with cutouts

加筋补强结构类型	筋条质量/kg	最优屈曲载荷/kN	承载性能改善/%
初始最优解	0.963	32.925	−
多级正交加筋主级直筋布局可变结构	0.988	34.698	5.38
多级曲线加筋主级曲筋布局可变结构	0.986	35.654	8.28
多级正交加筋主、次级布局高度/厚度可变结构	0.892	36.477	10.78
多级曲线加筋主、次级布局高度/厚度可变结构	0.950	38.914	18.19

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Kunpeng ZHANG, Peng HAO, Yuhui DUAN, Dachuan LIU, Bo WANG, Yutong WANG. Layout optimization design of hierarchical curvilinearly stiffened panels based on deep learning[J]. Chinese Journal of Ship Research, 2021, 16(4): 86

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Paper Information

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Received: Nov. 17, 2020

Accepted: --

Published Online: Mar. 28, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.02188

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Design variables of hierarchical stiffened panels

Table 1. Design variables of hierarchical stiffened panels

Table 2. Predictive effects of three models on structural buckling bearing capacity and mass

Table 2. Predictive effects of three models on structural buckling bearing capacity and mass

Table 3. Optimization results of four kinds of hierarchical stiffened structure with cutouts

Table 3. Optimization results of four kinds of hierarchical stiffened structure with cutouts