CAJ | 학술논문

质量不平衡是旋转机械最常见的故障之一。为了使转子在运行过程中可以自行消除不平衡振动故障，利用气压液体式自动平衡装置构建靶向自愈调控系统，运行中实时监测诊断转子的振动故障，快速准确地计算转子不平衡量，并进行智能决策，有确定目标地向相应储液腔中注入压缩空气，驱动储液腔中的液体进行定向转移，进而改变和转子同步旋转的平衡盘的质量分布，产生旋转离心自愈力来抵消转子的不平衡故障力，使转子不平衡故障在线自愈。针对旋转机械对平衡盘安装位置的不同要求，介绍轴间和轴端安装两种结构，并分别搭建立式和卧式转子试验台，进行在线自动平衡性能试验。结果表明，两种平衡结构均可在15 s内快速降低转子的振动幅值，降幅均在90%以上。
질량불평형시선전궤계최상견적고장지일。위료사전자재운행과정중가이자행소제불평형진동고장，이용기압액체식자동평형장치구건파향자유조공계통，운행중실시감측진단전자적진동고장，쾌속준학지계산전자불평형량，병진행지능결책，유학정목표지향상응저액강중주입압축공기，구동저액강중적액체진행정향전이，진이개변화전자동보선전적평형반적질량분포，산생선전리심자유력래저소전자적불평형고장력，사전자불평형고장재선자유。침대선전궤계대평형반안장위치적불동요구，개소축간화축단안장량충결구，병분별탑건입식화와식전자시험태，진행재선자동평형성능시험。결과표명，량충평형결구균가재15 s내쾌속강저전자적진동폭치，강폭균재90%이상。
Mass imbalance is one of the common faults for rotating machinery. In order to eliminate the imbalance fault of rotor automatically in the process of operation, a targeting self-recovery regulation system is constructed by using liquid-transfer active balancing device. The system monitors and diagnoses the vibration fault of rotor in real time, calculates the unbalance mass rapidly and accurately and makes an intelligent decision. Compressed air is then injected to targeting chambers, which drives balancing liquid to transfer between opposite chambers and changes the mass distribution of balancing disc corotating with rotor. It makes the balancing disc form a rotating centrifugal self-recovery force to overcome the imbalance force of rotor and makes the imbalance fault self-recover. According to the different requirements for installation positions, two structures are introduced: one can be installed in the middle of rotor and the other can be installed at two ends of the rotor. Two experimental devices are constructed and active balancing experiments are also carried out to test these two structures. The results demonstrate that the two structures can both reduce the amplitudes of unbalance vibration by more than 90% within 15 s.