新型动力设备隔振减震器力学性能研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (10) : 64-72.

论文

新型动力设备隔振减震器力学性能研究

冯玉龙1，王同龙1，王德才2，完颜健飞3，王成建3

作者信息 +

Mechanical property of a novel vibration isolation and dampingdevice for power equipments

FENG Yulong1，WANG Tonglong1，WANG Decai2，WANYAN Jianfei3，WANG Chengjian3

Author information +

文章历史 +

摘要

隔振器可有效降低动力设备工作产生的高频振动，但低频地震下设备隔振器位移响应较大。将碟形弹簧和环形摩擦套筒分别作为竖向隔振和耗能单元，竖向耗能单元内设置振动间隙实现正常使用隔振和地震时减震的两阶段机制，形成一种新型动力设备隔振减震器。基于理论分析给出了隔振减震器的设计流程，并进行了算例设计，采用ABAQUS软件进行了隔振减震器的静力性能分析和动力设备整体系统的动力性能分析。结果表明提出的隔振减震器及其系统的数值模拟与理论计算结果吻合较好；设计算例实现了设备正常工作时仅隔振、地震作用下耗能单元启动的两阶段隔振减震机制；竖向耗能单元使得设备竖向地震位移响应减小超过50%，水平向耗能单元使隔振减震器水平地震剪力减小超过80%，降低了隔振减震器地震倾覆和破坏的风险。

Abstract

Vibration isolators can effectively reduce the high frequency vibration generated due to the use of power equipment, however, the displacement response of the equipment vibration isolator is larger under low-frequency earthquakes. The disc spring and annular friction sleeve are used as a vertical vibration isolation unit and energy dissipation unit respectively, and a vibration gap is set in the vertical energy dissipation unit to achieve a two-stage mechanism of vibration isolation in normal work and damping in earthquakes, which forms a new type of vibration isolation and damping device for power equipment. Based on the theoretical analysis, the design process of the vibration isolation and damping device is given, and an example design is conducted. The static performance analysis of the device and the dynamic performance analysis of the power equipment entire system are carried out using ABAQUS software. The results show that the numerical simulations of the device and the system proposed match well with the theoretical calculation results; the designed example achieves a two-stage vibration isolation and damping mechanism, in which the device only isolates the equipment from vibration when the equipment is working normally, and the vertical energy dissipation unit is activated under earthquakes; the vertical energy dissipation unit reduces the equipment's vertical seismic displacement response by more than 50%, and a horizontal energy dissipation unit reduces the horizontal seismic shear force of the device by more than 80%, which reduce the risk of seismic overturning and damage of the device.

导出引用

冯玉龙1，王同龙1，王德才2，完颜健飞3，王成建3. 新型动力设备隔振减震器力学性能研究[J]. 振动与冲击, 2024, 43(10): 64-72

FENG Yulong1，WANG Tonglong1，WANG Decai2，WANYAN Jianfei3，WANG Chengjian3. Mechanical property of a novel vibration isolation and dampingdevice for power equipments[J]. Journal of Vibration and Shock, 2024, 43(10): 64-72

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