噪声与振动控制2019，Vol.39Issue(3)：215-220,6.DOI:10.3969/j.issn.1006-1355.2019.03.041
半主动调谐质量阻尼器控制管道振动实验研究
Experiment Study on Semi-active Pipeline Vibration Control with Tuning Mass Dampers
丁继超 1何立东 1冀沛尧2
作者信息
- 1. 北京化工大学 高端机械装备健康监控与自愈化北京市重点实验室,北京 100029
- 2. 北京化工大学 高端机械装备健康监控与自愈化北京市重点实验室,北京 100029
- 折叠
摘要
Abstract
In petrochemical engineering, airflow impacts at elbows and reducers are very common, which cause strong forced vibrations in the pipeline and affect the normal operation and production of the unit. For studying the pipeline vibration phenomenon, a two-dimensional portal pipeline vibration test rig is set up. First of all, the ANSYS finite element simulation software is used to model the pipeline to obtain the first five natural frequencies. The first order natural frequency of the pipeline is found to be 20 Hz, which is used as the target frequency of the tuned mass damper (TMD). Then, the TMD is installed in the pipeline and its effect for vibration control of the pipeline is experimentally studied. The results show that the TMD can effectively control the vibration in the frequency band near the target frequency. The vibration level can be reduced by 81 % . The installation of the TMDs at different positions of the pipeline has a good damping effect, but the damping effect is poor in the other frequency bands. By applying a semi-active switching control strategy in the tuned mass damper, the frequency shifting effect can be eliminated and the target frequency can be reduced by up to 98 % . The frequency conversion adjustment and broadband vibration reduction are realized.关键词
振动与波/调谐质量阻尼器/半主动控制/阻尼减振/管道系统Key words
vibration and wave/ tuned mass damper/ semi-active control/ damping vibration control/ pipeline system分类
通用工业技术引用本文复制引用
丁继超,何立东,冀沛尧..半主动调谐质量阻尼器控制管道振动实验研究[J].噪声与振动控制,2019,39(3):215-220,6.
