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以某四筒-筒型基础平台为对象,就不同后倾纵倾角(后倾角)拖航组合,采用1∶20的模型进行顺浪和逆浪下的拖航试验.通过测定各试验组合拖航过程中平台运动加速度、筒内气压力、筒底水压力以及拖缆力变化,并对试验数据进行对比分析,得到纵倾角对筒型基础平台拖航基本力学参数的影响,进而得出其对平台拖航稳性的影响.结果表明:设置一定的后倾角,可明显降低筒型基础平台拖航时的摇摆以及升沉运动的幅度,但后倾角对提高平台拖航稳性是有限的,与逆浪拖航相比,后倾角对平台顺浪拖航影响较大.对于该四筒-筒型基础平台,在顺浪和逆浪拖航中,当设置1°的后倾角时,平台的拖航稳性和耐波性均最高.
In the case of a four-tube-tube foundation platform, the towing and leaning angles were combined with the towing and leaning angles, and the 1:20 model was used to carry out the towing test under the waves and the counter-waves. The acceleration of the platform during the flight, the pressure of the cylinder, the pressure of the bottom of the cylinder and the change of the streamer force, and the comparative analysis of the test data to get the influence of the pitch angle on the towing basic mechanical parameters of the cylinder foundation platform, On the towing stability of the platform.The results show that setting a certain caster angle can significantly reduce the amplitude of swaying and heaving motion of the towed base platform during towing, but the caster angle is limited to improve the towing stability of the platform , The caster angle has a greater influence on the platform’s towing and towing than that of the counter-wave towing.For the four-tube-drum type foundation platform, when the caster angle of 1 ° is set in the forward and reverse towing, The stability of the platform towing and the most resistance to wave.