中国电机工程学报Issue(18)：4715-4724,10.DOI:10.13334/j.0258-8013.pcsee.2015.18.019
转子动力吸振器在线抑制多跨转子过临界振动的实验研究
Experimental Study on Over-critical Speed Vibration Online Control of Multi-span Rotors by Rotor Dynamic Vibration Absorber
摘要
Abstract
In order to solve the problem that multi-span rotors system vibration is too large around the critical speeds, the two-span and three-span rotors benches were established to simulate the starting process, a kind of rotor dynamical vibration absorber (RDVA) was designed and installed at each single rotor. The on-off controlling method based on speeds is applied to control the electromagnet’s on-off condition in RDVAs so as to change the natural frequencies of the RDVAs between two frequencies. And one of the frequencies is higher than that corresponding with working speeds, the other frequency corresponds with the critical speeds of rotors. The principle of the vibration control process on those benches was studied, which consist of two-span and three-span rotors’ on-off control processes. The results show that the RDVAs with on-off control can suppress the violent vibration of rotors at critical speeds and avoid the two peaks generated by traditional absorber. So the RDVAs can keep the vibration of the rotors at a lower level in the whole speed range.关键词
转子动力吸振器/临界转速/开关控制/双跨转子轴系/三跨转子轴系Key words
rotor dynamical vibration absorber/critical speed/on-off control/two-span rotors/three-span rotors分类
能源科技引用本文复制引用
王晨阳,何立东..转子动力吸振器在线抑制多跨转子过临界振动的实验研究[J].中国电机工程学报,2015,(18):4715-4724,10.基金项目
国家重点基础研究发展计划项目(973项目)(2012CB026000)；高等学校博士学科点专项科研基金资助项目(20110010110009)。The National Basic Research Program of China (973 Program)(2012CB026000) （973项目）
Project Supported by Special Scientific and Research Funds for Doctoral Speciality of Institution of Higher Learning (20110010110009) （20110010110009）
