It is of great importance to evaluate the vibrations response of ultra-large vessels under different wave directions. The segmented ship model test in oblique wave of an ultra-large container ship was carried out in a towing tank. The design principle of segmented ship model and oblique wave test system were introduced detailedly. The number of segments of model was changed to study the influence of hull elastic effect on vibration responses. Experimental results show that the elastic effect of hull has great influence on the whipping, and the lower the natural frequency of hull is, the earlier the whipping phenomenon occurs. Finally，time trace of bending moments and slamming pressure under different wave directions is discussed, and the variation of the different bending moment components and slamming pressure with wave directions and ratio of wave length to ship length was analyzed．It was shown that the most serious whipping is in head waves, and the maximum bending moment in oblique wave is near to λ/(L•cos β)=1.0. Compared with the low frequency wave moments, the high frequency load responses is more sensitive to the change of wave direction.
陈占阳，李志鹏. 不同浪向下超大型船舶载荷响应特征的模型试验研究[J]. 振动与冲击, 2017, 36(19): 112-118.
Chen Zhan-yang, LI Zhi-peng. Model experimental analysis of load responses of ultra-large vessels under different wave directions. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(19): 112-118.
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