Experimental Investigation of Nonlinear Dynamic Motion Analysis of Balanced Rotor Supported by Cylindrical Roller Bearing

2020 ◽  
pp. 125-133
Author(s):  
O. G. Vaghela ◽  
A. R. Majmudar ◽  
D. P. Mavani ◽  
S. A. Patel ◽  
S. P. Mehta ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Motion Analysis ◽  
Nonlinear Dynamic ◽  
Roller Bearing ◽  
Dynamic Motion ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

Influence of Lubricant Traction Coefficient on Cage's Nonlinear Dynamic Behavior in High-Speed Cylindrical Roller Bearing

2017 ◽  
Vol 139 (6) ◽  
Author(s):  
Wenhu Zhang ◽  
Sier Deng ◽  
Guoding Chen ◽  
Yongcun Cui
Keyword(s):  
Dynamic Response ◽  
Dynamic Behavior ◽  
Nonlinear Dynamic ◽  
High Speed ◽  
Roller Bearing ◽  
Mass Center ◽  
Nonlinear Dynamic Response ◽  
Traction Coefficient ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

In this paper, the formulas of elastohydrodynamic traction coefficients of four Chinese aviation lubricating oils, namely, 4109, 4106, 4050, and 4010, were obtained by a great number of elastohydrodynamic traction tests. The nonlinear dynamics differential equations of high-speed cylindrical roller bearing were built on the basis of dynamic theory of rolling bearings and solved by Hilber–Hughes–Taylor (HHT) integer algorithm with variable step. The influence of lubricant traction coefficient on cage's nonlinear dynamic behavior was investigated, and Poincaré map was used to analyze the influence of four types of aviation lubricating oils on the nonlinear dynamic response of cage's mass center. The period of nonlinear dynamic response of cage's mass center was used to assess cage's stability. The results of this paper provide the theoretical basis for selection of aviation lubricating oil.

An Experimental Investigation of Cylindrical Roller Bearings Having Annular Rollers

1976 ◽  
Vol 98 (4) ◽  
pp. 538-543 ◽  
Author(s):  
A. Suzuki ◽  
A. Seireg
Keyword(s):  
Experimental Investigation ◽  
Temperature Rise ◽  
Load Distribution ◽  
Static Load ◽  
Numerical Solutions ◽  
Roller Bearing ◽  
Roller Bearings ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

This study deals with an experimental investigation of a cylindrical roller bearing having annular rollers. Comparisons are made with a solid roller bearing having the same configuration and dimensions. Radial deformations and load distribution between rollers are measured under static load and compared with numerical solutions. Bearing temperature rise and roller wear are investigated in a specially designed tester. A radioactive tracing technique is utilized for the measurement of roller wear and proved to be reliable for wear detection. The results show several advantages of annular rollers over the solid rollers.

Effect of Varying the Number of Rollers on Dynamics of a Cylindrical Roller Bearing

2014 ◽  
Author(s):  
Aditya Sharma ◽  
M. Amarnath ◽  
P. K. Kankar
Keyword(s):  
Nonlinear Dynamic ◽  
Fourier Transforms ◽  
Roller Bearing ◽  
Hertzian Contact ◽  
Design Stage ◽  
Nonlinear Dynamic Model ◽  
Rotor Bearing ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller ◽  
Bearing System

In present paper, nonlinear dynamic model has been developed for cylindrical roller bearings. The Hertzian contact theory is used to derive a two degree of freedom model which considers nonlinearity due to clearance. The nonlinear dynamic behaviour of cylindrical roller bearing has been studied with varying number of rollers supporting load. The modified Newmark-β numerical integration technique has been used to solve the equations of motion. All the results are presented in the form of Fast Fourier Transforms and Poincarè maps. As the number of rollers is increases, system becomes stiffer. The results show that the number of rollers supporting load is one of the important parameters affecting the dynamics of rotor bearing system. Therefore, it must be considered at the design stage to understand the dynamic characteristics and stability of the rotor bearing system.

Load distribution in cylindrical roller bearing with EHD lubricated contact force

2019 ◽  
Author(s):  
Natália Akemi Hoshikawa Tsuha ◽  
Fabio Nonato ◽  
Katia Lucchesi Cavalca Dedini
Keyword(s):  
Contact Force ◽  
Load Distribution ◽  
Roller Bearing ◽  
Lubricated Contact ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller
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