基于颗粒阻尼隔振器的船舶动力设备隔振系统性能研究

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (10) : 153-160.

振动理论与交叉研究

基于颗粒阻尼隔振器的船舶动力设备隔振系统性能研究

吉敏1，林麟2，胡建龙1，吴雄杰1，叶林昌3，夏兆旺*1

作者信息 +

Performances of a vibration isolation system for marine power equipments based on particle damping isolator

JI Min1,LIN Lin2,HU Jianlong1,WU Xiongjie1,YE Linchang3,XIA Zhaowang*1

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摘要

针对船舶动力设备单层橡胶隔振系统减振性能有限的问题，结合颗粒阻尼技术和橡胶隔振器，提出了颗粒阻尼橡胶隔振系统。提出了基于多体动力学-离散元(MBD-DEM)耦合仿真方法，建立了悬臂梁颗粒阻尼减振系统仿真模型，并进行了试验验证，等效阻尼比仿真与试验的平均误差为7.0%。在此基础上建立了船舶动力设备单层颗粒阻尼隔振系统，研究了颗粒填充率、尺寸及材料等参数对隔振系统隔振性能的影响规律和其耗能特性。研究结果表明：填充率为90%时隔振效果最好；隔振效果随着颗粒尺寸增大而变好；填充颗粒为碳化钨颗粒时，隔振效果最好，共振频率处振动加速度级降低了7.7dB。

Abstract

In response to the limited vibration reduction performance of single-layer rubber isolation systems for ship power equipment, a particle damping rubber isolation system is proposed by combining particle damping technology and rubber isolators. A coupled simulation method based on multibody dynamics discrete element (MBD-DEM) was proposed to establish a simulation model of a cantilever beam particle damping vibration reduction system, and experimental verification was carried out. The average error between the simulation and experimental results of the equivalent damping ratio was 7.0%. On this basis, a single-layer particle damping isolation system for ship power equipment was established, and the influence of particle filling rate, size, and material parameters on the isolation performance of the isolation system and its energy dissipation characteristics were studied. The research results indicate that a filling rate of 90% has the best vibration isolation effect; The isolation effect improves with the increase of particle size; When the filling particles are tungsten carbide particles, the vibration isolation effect is the best, and the vibration acceleration level at the resonance frequency is reduced by 7.7dB.

导出引用

吉敏1, 林麟2, 胡建龙1, 吴雄杰1, 叶林昌3, 夏兆旺1. 基于颗粒阻尼隔振器的船舶动力设备隔振系统性能研究[J]. 振动与冲击, 2025, 44(10): 153-160

JI Min1, LIN Lin2, HU Jianlong1, WU Xiongjie1, YE Linchang3, XIA Zhaowang1. Performances of a vibration isolation system for marine power equipments based on particle damping isolator[J]. Journal of Vibration and Shock, 2025, 44(10): 153-160

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