本文選題：汽車輪轂軸承 + 雙列圓錐滾子軸承��； 參考：《河南科技大學(xué)》2014年碩士論文

【摘要】：隨著汽車產(chǎn)業(yè)的不斷發(fā)展，汽車輪轂軸承越來越多地采用雙列圓錐滾子軸承。汽車輪轂雙列圓錐滾子軸承逐漸成為人們關(guān)注的焦點，其動力學(xué)特性直接影響著汽車輪轂單元的綜合性能。 本文的研究對象是用于汽車輪轂中的雙列圓錐滾子軸承，在滾動軸承動力學(xué)和多體動力學(xué)接觸理論的基礎(chǔ)上，考慮了圓錐滾子的偏斜、滾子和保持架的打滑、軸承內(nèi)部的摩擦和潤滑等因素，并結(jié)合汽車輪轂軸承的實際使用工況，對輪轂軸承內(nèi)部各零件間的相互作用和運動特性進行分析。通過ADAMS軟件和Fortran語言建立了汽車輪轂雙列圓錐滾子軸承動力學(xué)分析模型，采用精細積分法和預(yù)估-校正Adams-Bashforth-Moulton多步法相結(jié)合的算法，對軸承動力學(xué)模型進行求解，并開發(fā)了汽車輪轂雙列圓錐滾子軸承動力學(xué)分析軟件。以某型號汽車輪轂雙列圓錐滾子軸承為例，進行了汽車輪轂雙列圓錐軸承的摩擦功耗和振動特性的理論分析并加以試驗驗證。研究結(jié)果表明：1輪轂軸承的疲勞壽命隨初始軸向預(yù)緊量的增加呈先升高后降低的趨勢，輪轂軸承安裝時有一最佳初始軸向預(yù)緊量；徑向載荷的增加使最佳初始軸向預(yù)緊量取值變大；2軸承摩擦功耗隨著大擋邊傾角、滾子數(shù)的增加而增加，隨滾子球基面半徑的增大而減少；3軸承摩擦功耗隨著徑向載荷、側(cè)向載荷比、傾覆力矩以及軸承轉(zhuǎn)速的增加而增加；4軸承振動值隨著初始軸向預(yù)緊量、滾子球基面半徑以及保持架兜孔間隙的增加呈先減小后增大的趨勢，故合理選取這些參數(shù)有利于汽車輪轂軸承的減振降噪；5隨著滾子數(shù)的增加，軸承振動值亦增加，當(dāng)滾子數(shù)增加到一定數(shù)量，軸承振動值趨于穩(wěn)定；6徑向載荷、側(cè)向載荷比以及傾覆力矩的增加使軸承振動值會有不同程度的增加。其中，徑向載荷對軸承振動影響較大；7軸承振動值隨著軸承轉(zhuǎn)速的增加先增大后減小。當(dāng)軸承轉(zhuǎn)速達到軸承臨界轉(zhuǎn)速時，軸承振動出現(xiàn)峰值。
[Abstract]:With the development of automobile industry, double row tapered roller bearings are used more and more. The double row tapered roller bearings of automobile wheels have gradually become the focus of attention, and their dynamic characteristics have a direct impact on the comprehensive performance of automobile hub units. The object of study in this paper is double-row tapered roller bearings used in automobile wheels. On the basis of the dynamic contact theory of rolling bearings and multi-body dynamics, the deflection of tapered rollers, the skidding of rollers and cage are considered. The internal friction and lubrication of the bearings and the actual operating conditions of the automobile hub bearings are used to analyze the interaction and motion characteristics of the internal parts of the hub bearings. Based on Adams software and Fortran language, the dynamic analysis model of automobile hub double-row tapered roller bearing is established. The dynamic model of bearing is solved by the combination of precise integration method and predictor-correction Adams-Bashforth-Moulton multi-step method. The dynamic analysis software of double row tapered roller bearings for automobile wheels is developed. Taking the double-row tapered roller bearings of automobile hub as an example, the friction power consumption and vibration characteristics of the double-row tapered bearings are analyzed and tested. The results show that the fatigue life of the hub bearing increases first and then decreases with the increase of the initial axial preload, and there is an optimum initial axial preload when the hub bearing is installed. With the increase of radial load, the friction power consumption of the bearing increases with the increase of the angle of inclination and the number of rollers, and decreases with the increase of the radius of the base surface of the roller ball, and the friction power consumption of the bearing decreases with the radial load with the increase of the radius of the base surface of the roller ball. With the increase of lateral load ratio, overturning moment and bearing rotational speed, the vibration value of the bearing increases with the initial axial preload, the radius of the roller ball base and the gap of the cage pocket decrease first and then increase. Therefore, the reasonable selection of these parameters is beneficial to the vibration reduction and noise reduction of automobile hub bearings. With the increase of roller number, the bearing vibration value also increases. When the number of rollers increases to a certain number, the bearing vibration value tends to stabilize the radial load. With the increase of lateral load ratio and overturning moment, the vibration value of bearing will increase in varying degrees. The radial load has a great influence on bearing vibration. The vibration value of bearing increases first and then decreases with the increase of bearing speed. When the speed of the bearing reaches the critical speed of the bearing, the vibration of the bearing appears the peak value.
【學(xué)位授予單位】：河南科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U463.343;TH133.3

【參考文獻】

相關(guān)期刊論文 前10條

1 邱明,李濟順;圓錐滾子軸承擋邊彈流潤滑的數(shù)值解[J];軸承;2000年06期

2 商錦海;圓錐滾子軸承振動值分析[J];軸承;2000年08期

3 吳振東;李婉;;雙列圓錐滾子汽車輪轂軸承塑料保持架的設(shè)計[J];軸承;2008年06期

4 殷杰;胡文中;邱峰;張家鑫;;第3代輪轂軸承單元軸向游隙影響因素的正交試驗[J];軸承;2011年07期

5 鄧四二;胡廣存;董曉;;雙列圓錐滾子軸承功耗特性研究[J];兵工學(xué)報;2014年11期

6 吳衛(wèi)江;吳振東;李婉;;汽車輪轂用雙列圓錐滾子軸承結(jié)構(gòu)設(shè)計[J];哈爾濱軸承;2009年03期

7 陳芳華;汪久根;張根源;;對數(shù)修形圓錐滾子的彈流潤滑分析[J];機械工程學(xué)報;2011年19期

8 胡廣存;魏鐵建;鄧四二;賈永川;張雪;;雙列圓錐滾子軸承動力學(xué)分析[J];河南科技大學(xué)學(xué)報(自然科學(xué)版);2014年06期

9 王國權(quán);張紅松;張良城;;重型載貨汽車轉(zhuǎn)向前橋輪轂軸承疲勞壽命的研究[J];汽車工程;2012年08期

10 張國方，盧紅，，柯常忠;圓錐滾子軸承負荷分布計算[J];專用汽車;1996年04期

本文編號：2092811