本文選題：氣磁軸承 + 主軸�。� 參考：《東北林業(yè)大學(xué)》2014年碩士論文

【摘要】：氣體軸承和磁懸浮軸承是目前回轉(zhuǎn)精度最高的軸承,在軍事、航天、計(jì)算機(jī)等領(lǐng)域得到了廣泛的應(yīng)用。靜壓氣體軸承具有摩擦極小、無滲漏、無污染等優(yōu)點(diǎn),但不易于控制,加工難度高。磁軸承具有無磨損、可控性好等優(yōu)點(diǎn)。本文首先闡述了氣體軸承和磁軸承的發(fā)展概況,并詳細(xì)闡述了兩種軸承的分類和特點(diǎn)。 由于靜壓氣體軸承和磁軸承各自所表現(xiàn)出來的優(yōu)點(diǎn)可以相互彌補(bǔ)彼此的不足,靜壓氣體軸承與磁懸浮軸承的聯(lián)合使用可以提高軸系的回轉(zhuǎn)精度。本文研究了一種超精密氣磁軸承主軸系統(tǒng),并對系統(tǒng)各軸承的形式及參數(shù)進(jìn)行了分析。系統(tǒng)由兩個靜壓氣體軸承和兩個主動磁軸承作為徑向軸承,由一個止推磁軸承作為軸向軸承,這些軸承組成了主軸系統(tǒng)的支撐結(jié)構(gòu)。 本文經(jīng)過對超精密氣磁軸承主軸系統(tǒng)結(jié)構(gòu)的研究,推導(dǎo)出系統(tǒng)五自由度動力學(xué)模型,分析了主軸高速轉(zhuǎn)動時的陀螺偶合效應(yīng)。通過雷諾方程的推導(dǎo),根據(jù)所設(shè)計(jì)的軸承參數(shù),采用有限元分析方法研究了靜壓氣體軸承和磁軸承的靜態(tài)特性,分析了靜壓氣體軸承在靜態(tài)條件下,剛度、偏心率、承載力之間的關(guān)系。對磁軸承電磁力進(jìn)行了數(shù)學(xué)建模和仿真分析。采用轉(zhuǎn)動坐標(biāo)系和靜態(tài)網(wǎng)格相結(jié)合的方法研究了主軸系統(tǒng)中的靜壓氣體軸承的動態(tài)特性,分析了動態(tài)阻尼和剛度的變化規(guī)律。氣磁軸承靜態(tài)特性和動態(tài)特性計(jì)算分析結(jié)果為改進(jìn)氣磁軸承的結(jié)構(gòu)和提高其性能提供了理論依據(jù)。 本文應(yīng)用MATLAB語言對主軸的控制系統(tǒng)進(jìn)行了仿真分析,設(shè)計(jì)了主軸的PID控制器,并使用Simulink對PID控制性能進(jìn)行仿真,仿真結(jié)果證明了PID控制主軸系統(tǒng)的可行性與穩(wěn)定性。
[Abstract]:The gas bearing and magnetic suspension bearing are the most rotating bearings with the highest rotation accuracy . It is widely used in the fields of military , aerospace , computer and so on . The static pressure gas bearing has the advantages of very little friction , no leakage , no pollution and the like , but it is not easy to control . The magnetic bearing has the advantages of no abrasion , good controllability , etc . The development of the gas bearing and magnetic bearing is first described , and the classification and characteristics of the two bearings are expounded in detail .

Because the advantages of the static pressure gas bearing and the magnetic bearing can compensate each other , the combined use of the static pressure gas bearing and the magnetic suspension bearing can improve the rotation precision of the shafting . The system consists of two static pressure gas bearings and two active magnetic bearings as radial bearings , and a thrust magnetic bearing is used as the axial bearing , and the bearings form the supporting structure of the spindle system .

The dynamic characteristics of hydrostatic gas bearing and magnetic bearing are analyzed by means of finite element analysis method . The dynamic characteristics of hydrostatic gas bearing and magnetic bearing are analyzed by means of finite element analysis method . The dynamic characteristics of static pressure gas bearing in spindle system are analyzed by means of finite element analysis method .

In this paper , the control system of the main shaft is simulated and analyzed by MATLAB language , the PID controller of the main shaft is designed , and the PID control performance is simulated using Simulink , and the simulation results show the feasibility and stability of the PID control spindle system .

【學(xué)位授予單位】：東北林業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TH133.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 呂峰;李啟海;宋萬良;;徑向磁軸承的穩(wěn)定性研究[J];長春光學(xué)精密機(jī)械學(xué)院學(xué)報(bào);1993年04期

2 張堅(jiān);孫玉卓;張海龍;孟慶濤;張鋼;;基于ANSYS的推力永磁軸承磁力特性研究[J];軸承;2014年04期

3 杜建軍,姚英學(xué),崔洋,劉暾;氣體靜壓軸頸-止推串接型軸承靜特性的分析[J];航空精密制造技術(shù);2005年02期

4 趙廣;劉盼年;于賀春;馬文琦;崔穎;劉占生;;靜壓氣體軸承氣膜力及其與轉(zhuǎn)子耦合動力學(xué)特性研究[J];航空動力學(xué)報(bào);2012年02期

5 李R伎，

本文編號：1805699