本文選題：磁懸浮軸承 + 保護軸承�。� 參考：《南京航空航天大學》2011年碩士論文

【摘要】：本文通過對轉(zhuǎn)子失控后跌落在保護軸承中的碰摩過程進行運動分析,分別建立了轉(zhuǎn)子跌落在固定環(huán)、滾動軸承、雙層滾動軸承上的動力學模型,并對該模型進行了數(shù)值求解。使用多體動力學分析軟件ADAMS對完整的深溝球軸承模型進行了建模和驗證,并仿真分析了不同參數(shù)下的轉(zhuǎn)子跌落在軸承中的運動過程,通過對比轉(zhuǎn)子的軸心軌跡和接觸力,總結(jié)了轉(zhuǎn)子跌落對保護軸承造成沖擊破壞的影響因素,提出了減小跌落沖擊的方法和建議。使用ADAMS對一種新型的保護軸承即雙層滾動軸承進行了建模,并對轉(zhuǎn)子跌落在該軸承中的運動過程進行了仿真分析,轉(zhuǎn)子的跌落軸心軌跡和接觸力仿真結(jié)果表明雙層滾動軸承能夠降低轉(zhuǎn)子跌落造成的沖擊。搭建了轉(zhuǎn)子跌落測試平臺,對不同轉(zhuǎn)速轉(zhuǎn)子在不同保護軸承中的跌落過程進行了試驗研究,使用Labview數(shù)據(jù)采集系統(tǒng)對跌落過程轉(zhuǎn)子的位移信號、轉(zhuǎn)速信號等進行了數(shù)據(jù)采集和處理,對試驗結(jié)果進行了分析,并得出了一些結(jié)論。
[Abstract]:In this paper, the dynamic model of a rotor falling on a fixed ring, a rolling bearing and a double deck rolling bearing is established by analyzing the rubbing process of the rotor falling in the protective bearing after the rotor is out of control, and the model is solved numerically. The full deep groove ball bearing model is carried out by using the multi body dynamic analysis software ADAMS. Modeling and verification, and simulating and analyzing the movement process of the rotor falling in the bearing under different parameters. By comparing the axis locus and contact force of the rotor, the influence factors of the impact failure of the rotor falling to the protective bearing are summarized, and the methods and suggestions for reducing the drop impact are proposed. A new type of protective bearing is used by ADAMS. The two-layer rolling bearing is modeled and the motion process of the rotor falling in the bearing is simulated. The simulation results of the rotor's falling axis trajectory and contact force show that the double-layer rolling bearing can reduce the impact caused by the fall of the rotor. A rotor falling test flat is built, and the rotor of different rotational speeds is in different protective bearings. The process of falling and falling is studied. The data acquisition and processing of the displacement signal and speed signal of the falling process rotor are carried out using the Labview data acquisition system. The results of the test are analyzed and some conclusions are drawn.

【學位授予單位】：南京航空航天大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH133.3

【引證文獻】

相關(guān)碩士學位論文 前1條

1 魏鵬;高速轉(zhuǎn)子跌落在保護軸承上的碰撞力研究[D];南京航空航天大學;2012年

，

本文編號：1896420