Prediction analysis on propulsion shafting load based on grey system theory

Table 1. Position distance between each bearing
View table
View in Article
Table 1. Position distance between each bearing
轴承距离/mm
主机轴承1 10 754
主机轴承2 11 624
主机轴承3 12 914
主机轴承4 14 204
主机轴承5 15 494
中间轴承 5 039
机舱最后舱壁 3 354
艉管后轴承 0

Table 2. Load value of each bearing under the condition of no deformation

View table

View in Article

Table 2. Load value of each bearing under the condition of no deformation

轴承	本文计算值/kN	文献[18]计算值/kN	相对误差/%
主机轴承1	47.60	47.70	−0.21
主机轴承2	52.79	53.00	−0.40
主机轴承3	93.53	93.50	0.03
主机轴承4	89.20	88.00	1.36
主机轴承5	107.90	110.00	−1.90
中间轴承	55.00	55.30	−0.54
艉管后轴承	226.50	229.00	−1.10

Table 3. Load value of each bearing under different hull deformation conditions

View table

View in Article

Table 3. Load value of each bearing under different hull deformation conditions

轴承	轴承负荷/kN
轴承	变位0.5 mm	变位1.0 mm	变位1.5 mm
主机轴承1	65.80	82.73	103.30
主机轴承2	33.78	21.44	12.92
主机轴承3	93.74	93.99	94.23
主机轴承4	87.95	87.89	87.84
主机轴承5	110.01	110.02	110.03
中间轴承	46.20	38.91	32.02
艉管后轴承	238.90	242.52	246.19

Table 4. Load value of each bearing under 2.0 mm hull deformation conditions

View table

View in Article

Table 4. Load value of each bearing under 2.0 mm hull deformation conditions

名称	预测值/kN	相对残差指标$\beta $	级比偏差指标$\gamma $	后验差指标$\eta $	有限元计算值/kN	相对误差/%
主机轴承1	128.49	0.9945	0.8048	0.013 3	127.91	0.45
主机轴承2	7.27	0.990 4	0.804 7	0.031 0	7.45	2.42
主机轴承3	94.48	0.994 5	0.804 8	0.013 3	94.27	0.22
主机轴承4	87.78	0.999 9	0.999 4	0.003 7	87.78	0
主机轴承5	110.04	0.999 9	0.999 9	0.000 1	110.05	0.01
中间轴承	26.81	0.998 2	0.800 8	0.021 8	25.43	5.43
艉管后轴承	249.91	0.999 9	0.985 2	0.000 4	253.1	1.23

Tools

Get Citation

Copy Citation Text

Yulong ZHANG, Wei WU, Jianhui ZHOU. Prediction analysis on propulsion shafting load based on grey system theory[J]. Chinese Journal of Ship Research, 2022, 17(6): 141

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites