基于颗粒阻尼技术的一系垂向减振器减振性能研究

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中图分类号：U270.1 文献标志码：A文章编号：1006-0316（2025）09-0028-09

doi：10.3969/j.issn.1006-0316.2025.09.005

Investigation of the Vibration Damping Performance of a Primary Vertical Damper Based on Particle Damping Technology

LUO Yangl，WU Xingwen1，LIU Gaokun²

1.School ofMechanical Engineering，Southwest Jiaotong University，Chengdu 61oo31， China;

2. China Railway Siyuan Survey and Design Group Co.， Ltd.， Wuhan 43o063， China）

Abstract ：A primary vertical damper is essential in the bogieof high-speed trains.However， its damping effectiveness is limited by traditional designs and materialsundercomplex vibrational conditions.To improve damping performance，this paper investigates the combined damping effects ofa particle damper integrated with the primary vertical damper. Through discrete element simulations and multi-axis synchronous vibration tests， the optimal parameters for the particle damper are first determined via simulation and then applied to the primary vertical damper for experimental damping tests.The results indicate that the diferences in energy dissipationamong steel， iron，copper，and aluminum balsare minor under identicalconditions.However， ina multi-cell compartment design，the four-cell particle damper exhibits the most effective damping performance. The multi-axis synchronous vibration test reveals that the dynamic damping efectiveness of the particle damper is significantly exceeds that in the static scenario within specific frequency ranges， with the four-cell particle damper achieving damping rates of 21.9% at 52Hz and 10% at 61Hz .These findings provide both theoretical andexperimental support for the application of particle dampers in mechanical systems，including high-speed train bogies.

Key words ∵ particle damper ; vertical damper ; discrete element simulation ; vibration reduction performance ; high-speed train

一系垂向减振器（SingleDegreeofFreedomVerticalDamper，SDOFVD）通常采用液压、橡胶等传统方式实现减振功能。（剩余6189字）