Break of oil film in needle bearing — The influence factor on the EHDL oil film in planetay gear set of PSSTD

Author

Duan, Hongjie ; Chen, Man ; Wang, Hong-Wei ; Ma, Biao ; Zheng, Chang-Song

Author_Institution

Sch. of Mech. & Vehicular Eng., Beijing Inst. of Technol., Beijing, China

fYear

2009

fDate

20-24 July 2009

Firstpage

836

Lastpage

838

Abstract

The planetary gear assembly is a key sub-mechanical set of the Power Shift-Steering Transmission Device (PSSTD). With the help of vibration measurement, the diagnosis issue of the needle bearing failure in the planetary gear assembly is solved. For what, there are collision pulses appearing when the Elastohydro Dynamic Lubrication (EHDL) oil film break in the needle bearing, which can be monitored though high frequency component of the vibration signal. By the fault simulation experiments, the factor of the oil film break are researched. The conclusion is corresponding to the vehicle road test, to EHDL rule and to the bearing wearing style.

Keywords

elastodynamics; failure analysis; gears; hydrodynamics; lubricating oils; lubrication; machine bearings; power transmission (mechanical); steering systems; vehicle dynamics; vibration measurement; EHDL oil film; elastohydrodynamic lubrication; fault simulation experiment; needle bearing failure; planetary gear assembly; planetay gear set; power shift-steering transmission device; vehicle road test; vibration measurement; Assembly; Condition monitoring; Frequency; Gears; Lubrication; Needles; Petroleum; Road accidents; Vehicle dynamics; Vibration measurement; Collision pulse; EHDL Oil film break; Influence factor; Needle bearing; PSSTD;

fLanguage

English

Publisher

ieee

Conference_Titel

Reliability, Maintainability and Safety, 2009. ICRMS 2009. 8th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4903-3

Electronic_ISBN

978-1-4244-4905-7

Type

conf

DOI

10.1109/ICRMS.2009.5269951

Filename

5269951