發(fā)布時間：2018-04-15 03:17

  本文選題：滑動軸承 + 理論計算　； 參考：《西南交通大學》2011年碩士論文

【摘要】：在生產實踐中,軸承的承載能力是滑動軸承設計的重點問題,對滑動軸承承載能力的研究對于軸承技術的發(fā)展具有重要意義。通常影響滑動軸承承載能力的因素有很多,如寬徑比、偏心率、相對間隙等,而滑動軸承在不同工作載荷和轉速的情況下,油膜承載力也不盡相同。 本文應用數(shù)值計算方法以及編程語言,從理論計算和實驗測試兩個方面對滑動軸承的承載能力展開研究。本文對雷諾方程進行無量綱簡化,采用有限差分法和超松弛迭代法以及數(shù)學軟件MATLAB對簡化后的雷諾方程編程求解,獲得滑動軸承油膜壓力分布數(shù)值以及三維圖形,并研究了軸承寬徑比、偏心率對軸承油膜壓力分布的影響規(guī)律。本文利用ZHS20滑動軸承實驗臺測得在不同工作載荷及轉速下滑動軸承的油膜壓力分布,以及流體動力潤滑特性相關曲線,展開對滑動軸承摩擦因數(shù)、摩擦狀態(tài)轉化以及過渡轉速的研究,并對理論計算以及實驗臺測試所得的軸承承載力進行比較,引入端泄系數(shù),對軸承運行的端泄量展開研究。本文通過對實驗臺測試功能的拓展,測得不同相對間隙下軸承的油膜壓力分布,分析相對間隙對軸承承載力的影響,并通過計算得到使軸承獲得最大承載力的相對間隙最佳值,對滑動軸承的設計和研究具有實際指導意義。本文在最后對軸承承載力的理論計算和實驗值計算進行可視化操作界面設計,使軸承承載力的計算及其結果顯示更為形象、簡捷。
[Abstract]:In production practice, bearing bearing capacity is a key issue in the design of sliding bearing, and the research on bearing capacity of sliding bearing is of great significance to the development of bearing technology.There are many factors that affect bearing capacity, such as width to diameter ratio, eccentricity, relative clearance, etc.In this paper, the bearing capacity of sliding bearing is studied from the aspects of theoretical calculation and experimental test by using numerical calculation method and programming language.In this paper, the dimensionless reduction of Reynolds equation is carried out, and the simplified Reynolds equation is solved by finite difference method, overrelaxation iteration method and mathematical software MATLAB. The numerical value of oil film pressure distribution and three dimensional figure of sliding bearing are obtained.The influence of bearing width to diameter ratio and eccentricity on oil film pressure distribution is also studied.In this paper, the oil film pressure distribution and the hydrodynamic lubrication characteristic correlation curves of sliding bearing under different working loads and rotational speeds are measured by using ZHS20 bearing test bench, and the friction coefficient of sliding bearing is developed.The friction state transformation and the transition speed are studied. The bearing capacity obtained by theoretical calculation and test table is compared. The end discharge coefficient is introduced to study the end discharge of the bearing.In this paper, the oil film pressure distribution of bearings with different relative clearances is measured by extending the testing function of the test bench, and the influence of relative clearance on bearing bearing capacity is analyzed, and the optimum relative clearance value is obtained by calculation.It has practical guiding significance for the design and research of sliding bearing.At the end of this paper, the visual operation interface is designed for the theoretical and experimental calculation of bearing bearing capacity, which makes the calculation of bearing capacity and its results more vivid and simple.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH133.31

【引證文獻】

相關碩士學位論文 前1條

1 郭杰;高速離心泵推力滑動軸承承載能力分析[D];南京林業(yè)大學;2012年

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本文編號：1752273