Abstract In the present paper, the damper force characteristics of dampers using a particle assemblage instead of oil have been reported. A separated dual-chamber single-rod-type damper using an elastomer particle assemblage was produced. The effects of the packing ratio of the particles, the vibration frequency, and the materials of the particles on the damper force characteristics of the damper with elastomer particles only on one side chamber were investigated experimentally. The maximum damper force was found to increase as the packing ratio, the vibration frequency, or the Young's modulus of the material of particles increased and the hysteresis of the damper force increased, i.e., the damping energy increased. In order to visualize the behavior of particles inside the damper, numerical simulation using the discrete element method was carried out. The simulation results agreed qualitatively and quantitatively with the damping characteristics of the experimental results, and large hysteresis was found to appear in the damper force due to deformation of the elastomer particles.

中文翻译：

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使用弹性体-颗粒组合的分离式双室单杆式阻尼器的阻尼力特性

摘要 在本文中，已经报道了使用粒子组合代替油的阻尼器的阻尼力特性。使用弹性体颗粒组合生产了一种分离的双室单杆型阻尼器。实验研究了颗粒填充率、振动频率和颗粒材料对单侧腔体弹性体颗粒阻尼器阻尼力特性的影响。发现最大阻尼力随着颗粒材料的填充率、振动频率或杨氏模量的增加而增加，并且阻尼力的滞后增加，即阻尼能量增加。为了可视化阻尼器内粒子的行为，采用离散元法进行数值模拟。仿真结果在定性和定量上与实验结果的阻尼特性一致，发现由于弹性体颗粒的变形，阻尼力出现了较大的滞后现象。