Motion and load of trimaran in irregular head waves are compared and analyzed by a series of self-propulsion experiment of trimaran model. The rule of trimaran motion with different wave scale and sailing speed, such as pitch, heave and acceleration of center hull, is analyzed by comparing the characteristic value in statistics. The longitudinal distribution of load under irregular waves is studied with the reasonable arrangement of sensors on the trimaran model. And the influence on load with the change of wave scale and sailing speed is also analyzed. The extreme value of the pressure on trimaran’s shell is collected to study the longitudinal and vertical distribution of pressure on the center hull and the difference of pressure on the two sides of outrigger. The number of green water is also counted to analyze the influence of the wave’s impact on trimaran with different wave scale and sailing speed. The data, which is got by the series of experiment, provides the foundation for the trimaran’s design and structural strength evaluation.
Key words
trimaran /
model test /
ship motion /
load /
pressure;
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] Hampshire J, Erskine S and Halliday N ,et al. Trimaran structural design and assessment[C]//Design & Operation of Trimaran Ships, London:the Royal Institution of Naval Architects, 2004.55-61.
[2] Kennell C. Model Test Result For A 55 Knot High Speed Sealift Trimaran[C]//Design & Operation of Trimaran Ships, London: the Royal Institution of Naval Architects, 2004.195-203.
[3] Hebblewhite K, Sahoo P K and Doctors L J. A case study: theoretical and experimental analysis of motion characteristics of a trimaran hull form [J]. Ships & Offshore Structures, 2007, 2(2):149-156.
[4] 王红军. 高速三体船片体布局优化实验研究[D]. 大连: 大连理工大学, 2007.
WANG Hong-jun. Experiment investigation of a high speed trimaran and its sidehull position optimization[D]. Dalian: Dalian University of Technology, 2007.
[5] 张文鹏, 宗智, 倪少玲. 三体船耐波性的模型试验研究[J].水动力学研究与进展A, 2007, 22(5): 619-624.
ZHANG Wen-peng, ZHONG Zhi, NI Shao-ling. Model testing of seakeeping performance of trinaran [J]. Journal of hydrodynamics A, 2007, 22(5): 619-624.
[6] Peng S, Wu W G, Sun H X. Experimental Study and Numerical Simulation on Slamming of Trimaran[C]//. Proceedings of the Twenty-first International Offshore and Polar Engineering Conference. Hawaii: International Society of Offshore and Polar Engineers, 2011. 881-883.
[7] Karim A V, Vakilabadi K A, Khedmati M R ,et al. Experimental study on heave and pitch motion characteristics of a wave-piercing trimaran [J]. Transactions of Famena, 2014, 38(3): 13-26.
[8] 戴仰山，沈进威，宋竞正. 船舶波浪载荷[M]. 北京：国防工业出版社，2007.
[9] 陈占阳, 任慧龙. 超大型船舶变截面梁分段模型的载荷试验研究[J]. 哈尔滨工程大学学报, 2012, 33(3):263-268.
CHEN Zhan-yang, REN Hui-long. The wave load experimental investigation of a segmented model of a very large ship based on variable cross-section beams[J]. Journal of Harbin Engineering University, 2012, 33(3):263-268.
[10] 任慧龙, 陈占阳. 自航与拖航试验对船体载荷响应的影响[J].华中科技大学学报, 2012, 40(11):85-88.
REN Hui-long, CHEN Zhan-yang. Effect of self propulsion and towing test on ship load response[J]. Journal of Huazhong University of Science and Technology, 2012, 40(11):85-88.
[11] 汪诚仪.高速双体船模型阻力试验及片体间波系干扰分析[J].中国造船, 1989, 3(2):16-25.
WANG Cheng-yi. On Resistance and Interference of Wave Systems of High-Speed Catamaran[J]. Shipbuilding of China, 1989, 3(2):16-25.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(1559 KB)
