A new contact model of finite-length crowned roller bearing, capable of handling lubrication, eccentric load, and misalignment situations, is established in this study. Simulation results of interface pressure, film thickness distribution, flash temperature, and subsurface stress can be obtained with different speeds, misalignment angles, load eccentricity, and roller trimming parameters. It is found that edge trimming can greatly reduce the stress concentration at the edge, and there are optimal trimming parameters to minimize the concentrated stress under normal load and eccentric load. When the eccentric load exceeds a certain angle, the increase in the maximum stress can be very large, which may lead to premature failure of the interface. Meanwhile, the staggering velocity caused by the misalignment of the roller axis also has a certain influence on the distribution of the lubricating film.
QiuLLiuSChenX, et al.Lubrication and loading characteristics of cylindrical roller bearings with misalignment and roller modifications. Tribol Int2022; 165: 107291.
2.
ZhangXHuoXHuangJ, et al.Kinematics modeling and pitch diameter modification of the standard planetary roller screw mechanism. New York: IEEE, 2019.
3.
MajdoubFSaunierLSidoroff-CoicaudC, et al.Experimental and numerical roller skew in tapered roller bearings. Tribol Int2020; 145: 106142.
4.
DuanHSongJWangZ. Lubrication and fatigue life evaluation of high-speed cylindrical roller bearing under misalignment. Math Probl Eng2020; 2020: 1–11.
5.
GaoYLiZWangJ, et al.Influences of bearing housing deflection on vibration performance of cylinder roller bearing-rotor system. Proc Inst Mech Eng Pt K-J Multi-Body Dyn2013; 227: 106–114.
6.
YongcunCSierDWenhuZ, et al.The impact of roller dynamic unbalance of high-speed cylindrical roller bearing on the cage nonlinear dynamic characteristics. Mech Mach Theory2017; 118: 65–83.
7.
Doki-ThononTFillotNMorales-EspejelGE, et al.A dual experimental/numerical approach for film thickness analysis in TEHL spinning skewing circular contacts. Tribol Lett2013; 50: 115–126.
8.
LiZZhouQAnQ, et al.Influences of eccentric unbalances on loads and life of auto water pump bearing. Mech Mach Theory2011; 46: 253–263.
9.
LiuXLSongDTYangPR. On transient EHL of a skew roller subjected to a load impact in rolling bearings. In: Proceedings of the key engineering materials. Trans Tech Publ.
10.
StackeLEFritzsonD. Dynamic behaviour of rolling bearings: simulations and experiments. Proc Inst Mech Eng J2001; 215: 499–508.
11.
NeliasDBerceaIPaleuV. Prediction of roller skewing in tapered roller bearings. Tribol Trans2008; 51: 128–139.
12.
ZhuDWangQJ. Elastohydrodynamic lubrication: a gateway to interfacial mechanics—review and prospect. J Tribol2011; 133: 041001.
13.
HeTZhuDYuC, et al.Mixed elastohydrodynamic lubrication model for finite roller-coated half space interfaces. Tribol Int2019; 134: 178–189.
14.
CuiSGuLWangL, et al.Numerical analysis on the dynamic contact behavior of hydrodynamic journal bearings during start-up. Tribol Int2018; 121: 260–268.
15.
LiuXXinZZhouJ, et al.Analysis of thermal dynamic micro-EHL considering bearing assembly temperature. Proc Inst Mech Eng J2021; 235: 1283–1297.
16.
WangYWangWLiY, et al.Lubrication and thermal failure mechanism analysis in high-speed angular contact ball bearing. J Tribol2018; 140: 031503.
17.
QuestaHMohammadpourMTheodossiadesS, et al.Tribo-dynamic analysis of high-speed roller bearings for electrified vehicle powertrains. Tribol Int2021; 154: 106675.
18.
PuWWangJZhangY, et al.A theoretical analysis of the mixed elastohydrodynamic lubrication in elliptical contacts with an arbitrary entrainment angle. J Tribol2014; 136: 041505.
19.
HeTWangQJZhangX, et al.Visco-elastohydrodynamic lubrication of layered materials with imperfect layer-substrate interfaces. Int J Mech Sci2021; 189: 105993.
20.
PeiXPuWYangJ. Numerical simulation of defective gear transmission under mixed EHL conditions. Eng Fail Anal2021; 127: 105525.
21.
PeiXPuWZhangY, et al.Surface topography and friction coefficient evolution during sliding wear in a mixed lubricated rolling-sliding contact. Tribol Int2019; 137: 303–312.
22.
PeiXPuWYangJ, et al.Wear law in mixed lubrication based on stress-promoted thermal activation. Friction2021; 9: 710–722.
23.
HuY-ZZhuD. A full numerical solution to the mixed lubrication in point contacts. J Trib2000; 122: 1–9.
24.
BairSWinerWO. A rheological model for elastohydrodynamic contacts based on primary laboratory data. J Trib1979; 101: 258–264.
25.
ZhuDChengHS. An analysis and computational procedure for EHL film thickness, friction and flash temperature in line and point contacts. Tribol Trans1989; 32: 364–370.
26.
DysonA. Frictional traction and lubricant rheology in elastohydrodynamic lubrication. Philos Trans R Soc A1970; 266: 1–33.
27.
JaegerJCarslawH. XVIII.—heat flow in the region bounded internally by a circular cylinder. Proc R Soc Edinburgh Sect A: Math1943; 61: 223–228.
28.
PlintMA. Third paper: traction in elastohydrodynamic contacts. Proc Inst Mech Eng1967; 182: 300–306.
29.
JohnsonKGreenwoodJHigginsonJ. The contact of elastic regular wavy surfaces. Int J Mech Sci1985; 27: 383–396.
30.
XiaolanA. Numerical analyses of elastohydrodynamically lubricated line and point contacts with rough surfaces by using semi-system and multigrid methods (Volumes I and II). Evanston, IL, USA: Northwestern University, 1993.
31.
PeiXHuangLPuW, et al.Dynamical wear prediction along meshing path in mixed lubrication of spiral bevel gears. Adv Mech Eng2020; 12: 1–16.
32.
ZhuDWangJRenN, et al.Mixed elastohydrodynamic lubrication in finite roller contacts involving realistic geometry and surface roughness. J Tribol2012; 134: 011504.
