船用牵引索式减摇装置是一种新型起重机吊重减摇设备，通过控制三根牵引索，消耗吊重摆动时的能量，从而减小起重机工作时吊重的摇晃。然而，在实船测试中发现，牵引索在工作时容易产生振动，导致减摇效果的下降，降低了系统的稳定性与安全性。本文结合悬链线理论和弦振动原理，建立了牵引索的振动模型，应用Matlab进行仿真分析。通过Adams模拟牵引索在实际工作中的振动情况，对比验证了模型的正确性。结果表明：液压系统的迟滞性会导致牵引索振动的产生，当液压系统响应时间 从1s降低至0.1s时，牵引索振幅减少90%。此外，牵引索的单位质量、长度，是否加装阻尼器等因素都会对振动产生影响，加装阻尼器可使牵引索振幅在4s内减少97%。本文研究结果对牵引索式减摇装置的实船应用具有一定指导意义。

Tagline type of anti-swing device of marine crane is a new type of crane load reduction equipment. By controlling three traction cables, the energy of the swing of the load is consumed and the swing of the load is reduced. However, it is found in the real ship test that the traction cable is easy to produce vibration when working, which leads to the decrease of anti-roll effect, and reduces the stability and safety of the system.In this paper, based on catenary theory and chord vibration principle, the vibration model of traction cable is established, and the simulation analysis is carried out with Matlab. The vibration of the traction cable in practice is simulated by Adams, and the correctness of the model is verified by comparison.The results show that the hysteresis of the hydraulic system will lead to the vibration of the traction cable. When the response time of the hydraulic system is reduced from 1s to 0.1s, the amplitude of the traction cable is reduced by 90%. In addition, the unit mass and length of the traction cable, whether to install a damper and other factors will have an impact on the vibration, adding a damper can reduce the amplitude of the traction cable in 4s by 97%. The research results of this paper have certain guiding significance for the application of tagline type of anti-swing device of marine crane.