發(fā)布時(shí)間：2018-07-17 03:25

【摘要】：碰摩問(wèn)題主要指轉(zhuǎn)子和靜軸之間的碰撞摩擦引起的系統(tǒng)失穩(wěn)或者故障，對(duì)于具有線性剛度的碰摩問(wèn)題，已經(jīng)有很多的學(xué)者做了研宄，但是，隨著現(xiàn)代工業(yè)的快速發(fā)展，其動(dòng)力學(xué)行為也越來(lái)越趨于復(fù)雜化，用線性化理論已經(jīng)無(wú)法解釋轉(zhuǎn)子的各種動(dòng)力學(xué)現(xiàn)象。國(guó)內(nèi)外學(xué)者開(kāi)始著手研宄碰摩轉(zhuǎn)子系統(tǒng)的非線性動(dòng)力學(xué)行為，這樣就促使非線性理論在轉(zhuǎn)子動(dòng)力學(xué)方面的極大發(fā)展。 轉(zhuǎn)子的穩(wěn)定性始終是動(dòng)力學(xué)研宄的重點(diǎn)，，為了比較淺顯的解釋碰摩轉(zhuǎn)子的動(dòng)力學(xué)行為，本文在只考慮碰摩條件下，分析頻率比、剛度比，阻尼因數(shù)以及偏心量對(duì)轉(zhuǎn)子響應(yīng)的影響；另外對(duì)碰摩系統(tǒng)在油膜力作用下的動(dòng)力學(xué)行為也進(jìn)行了研宄，對(duì)于非對(duì)稱(chēng)油膜力作用下碰摩系統(tǒng)的動(dòng)力學(xué)行為也進(jìn)行了探討分析，文章主要采用的方法是對(duì)微分方程無(wú)量綱化，進(jìn)而應(yīng)用數(shù)值模擬的方法，對(duì)碰摩系統(tǒng)的分岔圖、時(shí)域圖、龐加萊映射圖等進(jìn)行了較為詳細(xì)的分析，解釋了非線性特性產(chǎn)生的原因，為更深入研宄碰摩轉(zhuǎn)子系統(tǒng)提供了依據(jù)。 最后，總結(jié)文章所做主要的工作，提出研宄過(guò)程中存在的問(wèn)題和不足，為今后能夠更好地研宄碰摩轉(zhuǎn)子系統(tǒng)提供研宄方向。
[Abstract]:The rub-impact problem mainly refers to the system instability or failure caused by the collision and friction between the rotor and the static shaft. For the rub-impact problem with linear stiffness, many scholars have studied it, but with the rapid development of modern industry, The dynamic behavior of the rotor becomes more and more complicated, and the linearization theory can not explain the dynamic phenomena of the rotor. Scholars at home and abroad have begun to study the nonlinear dynamic behavior of rub-impact rotor system, which promotes the development of nonlinear theory in rotor dynamics. The stability of rotor is always the focus of dynamic research. In order to explain the dynamic behavior of rub-impact rotor simply, the frequency ratio and stiffness ratio are analyzed under the condition of only considering rub-impact. The effects of damping factor and eccentricity on rotor response, the dynamic behavior of rub-impact system under the action of oil film force, and the dynamic behavior of rub-impact system under asymmetric oil film force are also studied. The main method of this paper is dimensionless differential equation, and then the numerical simulation method is used to analyze the bifurcation diagram, time-domain diagram and Poincare map of rub-impact system in detail. The causes of nonlinear characteristics are explained, which provides a basis for further study of rub-impact rotor systems. Finally, the main work of the paper is summarized, and the problems and shortcomings in the research process are put forward, which can provide a research direction for the better research of rub-impact rotor system in the future.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TH113;O415.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 張思進(jìn),陸啟韶,王士敏;碰摩轉(zhuǎn)子映射系統(tǒng)的延遲反饋混沌控制[J];固體力學(xué)學(xué)報(bào);2001年01期

2 褚福磊,馮冠平,張正松,褚福磊;碰摩轉(zhuǎn)子系統(tǒng)中的陣發(fā)性及混沌現(xiàn)象[J];航空動(dòng)力學(xué)報(bào);1996年03期

3 周佳新,羅躍剛;非線性轉(zhuǎn)子系統(tǒng)碰摩的分岔與混沌研究[J];機(jī)械科學(xué)與技術(shù);2005年01期

4 張波,李忠,毛宗源,龐敏熙;Poincare映射的數(shù)值算法及其在永磁同步電機(jī)混沌分析中的應(yīng)用[J];控制理論與應(yīng)用;2001年05期

5 張思進(jìn),陸啟韶;碰摩轉(zhuǎn)子系統(tǒng)的非光滑分析[J];力學(xué)學(xué)報(bào);2000年01期

6 孫保蒼;邱飛宇;何仁;;磁懸浮軸承-轉(zhuǎn)子系統(tǒng)的分岔與混沌特性[J];潤(rùn)滑與密封;2006年04期

7 汪希平,張直明,于良,萬(wàn)金貴;軸向磁懸浮軸承的力學(xué)特性分析[J];應(yīng)用力學(xué)學(xué)報(bào);2000年03期

本文編號(hào)：2128795