With the application of the particle damping technology to cable vibration attenuation, the rootless cable damper overcomes the limit in installation height of existing dampers. Damping is achieved through energy dissipation by collisions and friction. In this paper, a coupled multi-body dynamics—discrete element method is proposed to simulate the damping of the damper—cable system under a harmonic excitation. The analyses are done by combining the discrete element method in EDEM and multi-body dynamics in ADAMS. The simulation results demonstrate the damping efficiency of rootless particle damper under different excitations and reveal the influence of the design parameters on its performance, including the filling ratio, particle size, coefficient of restitution, and coefficient of friction.

通过将颗粒阻尼技术应用于电缆振动衰减，无根电缆阻尼器克服了现有阻尼器安装高度的限制。通过碰撞和摩擦消耗能量来实现阻尼。本文提出了一种耦合多体动力学离散元方法来模拟阻尼器-电缆系统在谐波激励下的阻尼。分析是通过结合EDEM中的离散元方法和ADAMS中的多体动力学来完成的。仿真结果证明了无根颗粒阻尼器在不同激励下的阻尼效率，并揭示了设计参数对其性能的影响，包括填充比，粒径，恢复系数和摩擦系数。