Plate seam arrangement and size optimization of bulk carrier double bottom girders

Table 1. Thickness of each plate panel after size optimization
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Table 1. Thickness of each plate panel after size optimization
板格编号厚度/mm 板格编号厚度/mm
1 11.5 7 17.1
2 11.5 8 18.1
3 11.5 9 17.2
4 13.2 10 16.8
5 14.5 11 18.3
6 14.2 12 17.0

Table 2. Comparison of plate seam distribution before and after seam arrangement optimization
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Table 2. Comparison of plate seam distribution before and after seam arrangement optimization
原始板缝布置板缝布置优化
板格编号板缝分布板格编号板缝分布
4～6 板1 4～6 板1
7～9 板2 7～8 板2
10～12 板3 9～10 板3
11～12 板4

Table 3. Comparison of plate thickness before and after seam arrangement optimization
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Table 3. Comparison of plate thickness before and after seam arrangement optimization
原始板缝布置+尺寸优化板缝布置优化+尺寸优化
板格编号板厚/mm 板格编号板厚/mm
4～6 14.5 4～6 14.5
7～9 18.5 7～8 18.5
10～12 19.0 9～10 17.5
11～12 18.5

Table 4. Plate panel thickness and von Mises stress of longitudinal girder-3 after optimization

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Table 4. Plate panel thickness and von Mises stress of longitudinal girder-3 after optimization

原始板缝布置			板缝布置优化+尺寸优化
板格编号	原始设计板厚/mm	尺寸优化后的板厚/mm	板格编号	优化后的板厚/mm	优化后的应力/MPa	相比原始设计的应力变化/MPa
1～2	12.5	12.5	1～2	12.5	300	2
3～4	14.0	13.5	3～4	13.5	318	−5
5～6	18.5	17.0	5～6	17.0	317	18
7～8	21.0	20.0	7～9	20.0	305	−2
9～12	29.0	25.5	10～11	25.5	321	22
13～14	27.5	23.0	12～14	23.0	316	24
15～16	23.0	20.5	15～16	20.5	316	18

Table 5. Plate panel thickness and von Mises stress of longitudinal girder-7 after optimization

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Table 5. Plate panel thickness and von Mises stress of longitudinal girder-7 after optimization

原始板缝布置			板缝布置优化+尺寸优化
板格编号	原始设计板厚/mm	尺寸优化后的板厚/mm	板格编号	优化后的板厚/mm	优化后的应力/MPa	相比原始设计的应力变化/MPa
1～3	13.0	13.0	1～3	13.0	296	3
4～6	15.5	16.5	4～6	16.5	319	−4
7～9	19.0	20.0	7～8	20.0	313	4
10～12	19.0	20.0	9～10	19.0	326	19
			11～12	20.0	314	4

Table 6. Plate panel thickness and von Mises stress of longitudinal girder-12 after optimization

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Table 6. Plate panel thickness and von Mises stress of longitudinal girder-12 after optimization

原始板缝布置			板缝布置优化+尺寸优化
板格编号	原始设计板厚/mm	尺寸优化后的板厚/mm	板格编号	优化后的板厚/mm	优化后的应力/MPa	相比原始设计的应力变化/MPa
1～3	13.0	13.0	1～3	13.0	302	0
4～6	16.0	16.0	4～5	16.0	325	4
7～9	17.0	16.0	6～7	16.5	313	−6
			8～9	16.0	319	16

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Weixiang YAN, Wei FENG, Wenbin ZHAO, Lijuan XIA. Plate seam arrangement and size optimization of bulk carrier double bottom girders[J]. Chinese Journal of Ship Research, 2023, 18(3): 32

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Paper Information

Category: Ship Design and Performance

Received: Sep. 7, 2021

Accepted: --

Published Online: Mar. 20, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.02517

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Thickness of each plate panel after size optimization

Table 1. Thickness of each plate panel after size optimization

Table 2. Comparison of plate seam distribution before and after seam arrangement optimization

Table 2. Comparison of plate seam distribution before and after seam arrangement optimization

Table 3. Comparison of plate thickness before and after seam arrangement optimization

Table 3. Comparison of plate thickness before and after seam arrangement optimization

Table 4. Plate panel thickness and von Mises stress of longitudinal girder-3 after optimization

Table 4. Plate panel thickness and von Mises stress of longitudinal girder-3 after optimization

Table 5. Plate panel thickness and von Mises stress of longitudinal girder-7 after optimization

Table 5. Plate panel thickness and von Mises stress of longitudinal girder-7 after optimization

Table 6. Plate panel thickness and von Mises stress of longitudinal girder-12 after optimization

Table 6. Plate panel thickness and von Mises stress of longitudinal girder-12 after optimization