考虑回转效应的单盘转子系统临界转速影响因素分析  

Analysis of Critical Speed Influence Factors of a Single Disc Rotor System Considering Gyroscopic Effect

作　　者：马鸿龙 万震霆 赵腾蛟 Hong-long Ma;Zhen-ting Wan;Teng-jiao Zhao(Noncommissioned Officer Academy,PLA Army Academ of Artillery and Air Defense;Shengu Group Co.,Ltd.)

机构地区：[1]陆军炮兵防空兵学院士官学校 [2]沈鼓集团股份有限公司

出　　处：《风机技术》2024年第6期43-48,84,共7页Chinese Journal of Turbomachinery

摘　　要：为研究单盘转子系统不同转子参数对临界转速的影响规律,建立了考虑回转效应的单盘转子系统临界转速求解模型,在试验验证模型准确性的基础上,研究了负载位置、支承位置、转子直径和不平衡量对单盘转子系统第一、二阶临界转速的影响。研究表明:随着负载趋近于两支承中间位置,临界转速下降,第二阶临界转速比第一阶临界转速下降更快。临界转速与支承跨距呈负相关、与转子直径呈正相关,且二者对第一阶、第二阶临界转速影响程度基本一致。临界转速随不平衡量的增加变化不大,远离负载位置的不平衡量对临界转速影响相对明显。该研究为单盘转子系统稳定性设计提供理论依据。In order to study the influence of different rotor parameters on the critical speed of a single-disc rotor system,a critical speed solution model of single-disk rotor system considering the gyroscopic effect was established.On the basis of experimental verification of the accuracy of the model,the effects of load position,support position,rotor diameter and unbalance on the first and second order critical speeds of the single-disc rotor system were investigated.The research shows that the critical speed decreases as the load approaches the middle position of the two supports,and the second critical speed decreases faster than the first critical speed.The critical speed is negatively correlated with the support span and positively correlated with the rotor diameter,and the influence degree of the two on the first and second order critical speed is basically the same.The critical speed decreases weakly with the increase of the unbalance,and the unbalance far from the load position has a relatively large impact on the critical speed.The research provides a theoretical basis for the stability design of single-disc rotor system.

关 键 词：单盘转子系统 临界转速 回转效应 转子参数 

分 类 号：TH452[机械工程—机械制造及自动化]