Multi-objective optimization in geometric design of tapered roller bearings based on fatigue, wear and thermal considerations through genetic algorithms

Sadhana ◽  
2020 ◽  
Vol 45 (1) ◽  
Author(s):  
Meduri Kalyan ◽  
Rajiv Tiwari ◽  
Md Saif Ahmad
Keyword(s):  
Genetic Algorithms ◽  
Geometric Design ◽  
Multi Objective Optimization ◽  
Fatigue Wear ◽  
Multi Objective ◽  
Roller Bearings ◽  
Tapered Roller ◽  
Tapered Roller Bearings

scholarly journals Geometrical Optimization of the EHL Roller Face/Rib Contact for Energy Efficiency in Tapered Roller Bearings

Lubricants ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 67
Author(s):  
Sven Wirsching ◽  
Max Marian ◽  
Marcel Bartz ◽  
Thomas Stahl ◽  
Sandro Wartzack
Keyword(s):  
Energy Efficiency ◽  
Carrying Capacity ◽  
Tribological Behavior ◽  
Large Radius ◽  
Load Carrying Capacity ◽  
Statistical Design Of Experiments ◽  
Roller Bearings ◽  
Load Carrying ◽  
Tapered Roller ◽  
Tapered Roller Bearings

In the context of targeted improvements in energy efficiency, secondary rolling bearing contacts are gaining relevance. As such, the elastohydrodynamically lubricated (EHL) roller face/rib contact of tapered roller bearings significantly affects power losses. Consequently, this contribution aimed at numerical optimization of the pairing’s macro-geometric parameters. The latter were sampled by a statistical design of experiments (DoE) and the tribological behavior was predicted by means of EHL contact simulations. For each of the geometric pairings considered, a database was generated. Key target variables such as pressure, lubricant gap and friction were approximated by a meta-model of optimal prognosis (MOP) and optimization was carried out using an evolutionary algorithm (EA). It was shown that the tribological behavior was mainly determined by the basic geometric pairing and the radii while eccentricity was of subordinate role. Furthermore, there was a trade-off between high load carrying capacity and low frictional losses. Thereby, spherical or toroidal geometries on the roller end face featuring a large radius paired with a tapered rib geometry were found to be advantageous in terms of low friction. For larger lubricant film heights and load carrying capacity, spherical or toroidal roller on toroidal rib geometries with medium radii were favorable.

Tandem tapered roller bearings no-load torque loss in a rear axle gear transmission

2021 ◽  
Vol 157 ◽  
pp. 106876
Author(s):  
Justino A.O. Cruz ◽  
Pedro M.T. Marques ◽  
Jorge H.O. Seabra ◽  
Ramiro C. Martins
Keyword(s):  
Rear Axle ◽  
Gear Transmission ◽  
Load Torque ◽  
Roller Bearings ◽  
Torque Loss ◽  
Tapered Roller ◽  
Tapered Roller Bearings

scholarly journals In-Process Measurement for the Process Control of the Real-Time Manufacturing of Tapered Roller Bearings

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1371 ◽  
Author(s):  
Francisco Brosed ◽  
A. Zaera ◽  
Emilio Padilla ◽  
Fernando Cebrián ◽  
Juan Aguilar
Keyword(s):  
Real Time ◽  
Measurement Procedure ◽  
Axial Loads ◽  
Machining Processes ◽  
Process Measurement ◽  
Roller Bearings ◽  
Tapered Roller ◽  
Environmental Process ◽  
Tapered Roller Bearings ◽  
Component Assembly

Tapered roller bearings can accommodate high radial loads as well as high axial loads. The manufacturing process consists of machining processes for ring and component assembly. In this contribution, the parameters of influence on the measurement procedure were studied. These parameters of influence were classified as environmental, process, and machine parameters. The main objective of this work was to optimize the process using real-time measurements, which required the study of the influence of several parameters on the measurement uncertainty and how to correct their effects.

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