Buoyance and Resistance Study on HYSWATH Model Test

Abstract

Abstract:

The model test of hydrofoil small waterplane area twin-hull ship (HYSWATH) scheme developed in this paper is carried out to get the buoyance and resistance performances. Various characteristics of the total resistance, draft and trim with different ship speeds, locations of hydrofoils, attack angles of foils and locations of the center of gravity of ship have been measured and analyzed. The results of the model test prove that the buoyance and resistance performances of HYSWATH model are very good. The location of hydrofoils, attack angles of foils and location of the center of gravity of ship influence the resistance and velaity of the HYSWATH, and improve the resistance pertormance of HYSWATH in transitive state.

Key words: ship design, SWATH, hovercraft hybrid ship, model test, resistance

CLC Number:

U674.951

Ya-dong LIU. Buoyance and Resistance Study on HYSWATH Model Test[J]. Ocean Engineering Equipment and Technology, 2014, 1(3): 234-239.

Figures/Tables 12

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References 9

[1]	Meyer J R.A comparison of several hybrid surface ship concepts[J]. Naval Engineers Journal,1977,86(4):183.
[2]	Meyer J R.Hybrid hydrofoil technology applications[J]. Naval Engineers Journal,1994,106(1):123.
[3]	李俐译. 国际新船型发展动态[J]. 国外舰船工程,1997(12):33.
[4]	Meyer J R.国际混合式船型发展概况[J]. 国外舰船工程,1996(7):15.
[5]	黄鼎良. 小水线面双体船性能原理[M]. 北京:国防工业出版社,1993.
[6]	林建国,许维德. 多体水翼船综述[J]. 船舶工程,1995(2):19.
[7]	董祖舜. 快艇动力学[M]. 武汉:华中理工大学出版社,1991:19.
[8]	王琦,谭家华. 单体小水线面水翼艇的概念设计[J]. 船舶工程,1996(5):14.
[9]	柳卫东. 单体小水线面水翼复合型高速船(HYSWAS)性能及概念设计研究[D]. 上海:上海交通大学, 2000.

参数	取值	参数	取值
静水排水量Δ₀/kg	50	主体长度L_B/m	1.620
翼航排水量Δ₁/kg	30	主体直径D_B/m	0.101
垂线间长L_P /m	1.73	主体排水中心纵向位X_CB/m	0.053
型宽B/m	0.835	静浮浮心纵向位置X_C0/m	0.005
型深D/m	0.44	翼航浮心纵向位置X_C1/m	0.019
静水吃水d₀/m	0.265	重心纵向位置X_g/m	0.005
翼航吃水d₁/m	0.165	重心高度KG/m	0.268
支柱长度L_S/m	1.296	纵摇惯性半径r_yy/m	0.394
支柱高度H_S/m	0.132	纵向稳心半径(翼航40 kn)R_yy/m	0.416
支柱最大厚度t₀/m	0.050
支柱水线面积A₀/m²	0.107	纵倾初稳心高度(翼航40 kn)H₀/m	0.276
水线面积中心纵向位置X_f/m	-0.035
船体纵摇周期T₀/m	2.96	片体中心距2b/m	0.540

参数	取值	参数	取值
前水翼弦长b_h1/m	0.058	后水翼弦长b_h2/m	0.069
前水翼展长s_h1/m	0.395	后水翼展长s_h2/m	0.422
前水翼厚度t_h1/m	0.005	后水翼厚度t_h2/m	0.006
前水翼设置角α₁/(°)	1	后水翼设置角α₂/(°)	2
前水翼位置至船艏的距离l_f/m	0.162	后水翼位置至船尾的距离l_a/m	0.122
前水翼升力系数C_L1	3.12	后水翼升力系数C_L2	3.03
前水翼支柱弦长b_s1/m	0.058	后水翼支柱弦长b_s2/m	0.069
前水翼支柱高度h_s1/m	0.241	后水翼支柱高度h_s2/m	0.241
前水翼支柱最大厚度t_s1/m	0.005	后水翼支柱最大厚度t_s2/m	0.006

傅汝德数	总阻力系数		误差 /%
傅汝德数	理论值	模型值	误差 /%
0.462	0.052096	0.068242	-23.7
0.519	0.053814	0.067628	-20.4
0.577	0.051314	0.059220	-13.4
0.635	0.045941	0.048163	-4.6
0.692	0.039525	0.038788	1.9
0.750	0.032896	0.033457	-1.7
0.808	0.028324	0.029802	-5.0
0.865	0.025237	0.026828	-5.9
0.923	0.023533	0.024894	-5.5
0.981	0.022173	0.023123	-4.1
1.038	0.021421	0.021601	-0.8
1.096	0.021008	0.020561	2.2
1.154	0.020894	0.020172	3.6
1.211	0.020828	0.019624	6.1