在海洋环境中,舰艇的单缆拖带运动呈现许多突变现象,这些突变现象是导致拖缆断裂的主要原因.对此进行了拖曳水池模型试验研究,共进行了33种不同方案的拖曳,考虑了静水及波浪2种环境,锚链及尼龙纤维缆2种缆绳.试验测得拖带运动响应8个特征值的时间历程.研究结果表明,试验中的各种动力学响应数据清楚地体现了舰艇拖带的非线性动力学特征；影响舰艇安全拖带的主要因素包括舰艇的运动模式、缆绳张力的变化和急牵倾侧力矩对稳性的影响.%In ocean conditions, there are many mutations in the movement of a ship towed by a single cable. These mutations are the main causes responsible for the rupture of the towing cable. In this work, model experiments were conducted in a towing tank in order to research these phenomena. Thirty-three towing cases were completed, and still water and wave conditions were considered. Additionally, two different kinds of cables ( steel chain and nylon-fiber cable) were also taken into consideration. The time-history of eight eigenvalues describing the towing movement were recorded. The research results show that the various dynamic-response data gained in the experiments clearly reflect the nonlinear dynamic characteristics of a warship's movement, the main factors influencing towing-safety including the mode of a warships movement, and the change of cable stress and the influence of the lurching heeling-moment on stability.
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