Investigation on welding residual stress and vibration characteristics of ring-stiffened cylindrical shell

Table 1. Parameters of welding process for the ring-stiffened cylindrical shell
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Table 1. Parameters of welding process for the ring-stiffened cylindrical shell
焊道类型电流/A 电压/V 焊接速度/（mm·s⁻¹）
壳体板对接焊 252～254 28.0 5.52
环筋角焊 244～254 27.8 6.37
横筋角焊 252～254 27.8 5.92

Table 2. Measurements of longitudinal residual stress for the welded ring-stiffened cylindrical shell
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Table 2. Measurements of longitudinal residual stress for the welded ring-stiffened cylindrical shell
测量点编号与焊趾的距离/mm 残余应力测量结果/MPa
1 3 241
2 23 −88
3 3 138
4 23 −28
5 3 181
6 23 −51
7 3 159
8 23 −65

Table 3. Parameters of annealing heat treatment experiment
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Table 3. Parameters of annealing heat treatment experiment
升温速率/（℃·h⁻¹）保温时间/h 保温温度/℃ 降温速率/（℃·h⁻¹）
100～150 2～3 600～650 低于100

Table 4. Comparison of measured and predicted natural frequency of the welded ring-stiffened cylindrical shell
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Table 4. Comparison of measured and predicted natural frequency of the welded ring-stiffened cylindrical shell
模态结构振动固有频率/Hz
焊后测量值退火后测量值计算值
1阶 215.625 216.250 216.6
2阶 236.719 237.500 235.0
3阶 580.469 580.625 580.64
4阶 1 025.781 1 028.125 1 016.6

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Jiangchao WANG, Xiangfei CHEN, Yexing NIU, Shizhong DU, Chaonan SHEN. Investigation on welding residual stress and vibration characteristics of ring-stiffened cylindrical shell[J]. Chinese Journal of Ship Research, 2023, 18(6): 208

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Paper Information

Category: Ship Structure and Fittings

Received: Sep. 16, 2022

Accepted: --

Published Online: Mar. 21, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.03081

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Parameters of welding process for the ring-stiffened cylindrical shell

Table 1. Parameters of welding process for the ring-stiffened cylindrical shell

Table 2. Measurements of longitudinal residual stress for the welded ring-stiffened cylindrical shell

Table 2. Measurements of longitudinal residual stress for the welded ring-stiffened cylindrical shell

Table 3. Parameters of annealing heat treatment experiment

Table 3. Parameters of annealing heat treatment experiment

Table 4. Comparison of measured and predicted natural frequency of the welded ring-stiffened cylindrical shell

Table 4. Comparison of measured and predicted natural frequency of the welded ring-stiffened cylindrical shell