Nonlinear dynamic force transmissibility of a flywheel rotor supported by angular contact ball bearings

2021 ◽  
Vol 103 (3) ◽  
pp. 2273-2286
Author(s):  
Duzhou Zhang ◽  
Dengyun Wu ◽  
Qinkai Han ◽  
Hong Wang
Keyword(s):  
Nonlinear Dynamic ◽  
Dynamic Force ◽  
Ball Bearings ◽  
Force Transmissibility ◽  
Flywheel Rotor

Nonlinear dynamic behaviors of a bolted joint rotor system supported by ball bearings

2019 ◽  
Vol 89 (11) ◽  
pp. 2381-2395 ◽  
Author(s):  
Yuqi Li ◽  
Zhong Luo ◽  
Zijia Liu ◽  
Xiaojie Hou
Keyword(s):  
Nonlinear Dynamic ◽  
Rotor System ◽  
Ball Bearings ◽  
Bolted Joint ◽  
Dynamic Behaviors

Force Transmissibility of Heavy Truck Tires

1994 ◽  
Vol 22 (1) ◽  
pp. 60-74 ◽  
Author(s):  
J. T. Tielking
Keyword(s):  
Amplitude Ratio ◽  
Single Frequency ◽  
Dynamic Force ◽  
Force Transmission ◽  
Truck Tires ◽  
Tire Dynamics ◽  
Heavy Truck ◽  
Cyclic Displacement ◽  
Force Transmissibility ◽  
Force Displacement

Abstract A laboratory study of force transmission in radial truck tires is described. The experiments are conducted with the tire-wheel assembly attached to a fixed, nonrotating axle. Contact with the tire is provided by a flat surface. Single frequency displacement cycles are applied to the loaded tire footprint, and the dynamic force transmitted through the tire is measured at the fixed axle. Fourier transform signal analysis is used to extract the cyclic displacement and force amplitudes. The amplitude ratio force/displacement is defined as the force transmissibility. The experiments show inflation pressure and tire load to have little effect on force transmissibility. A single degree of freedom tire model for force transmissibility is described. The model uses easily measured tire parameters and is intended for use in vehicle models to include the effect of tire dynamics.

Sliding behavior of high speed ball bearings based on improved nonlinear dynamic model

2021 ◽  
pp. 146441932110430
Author(s):  
Dongsheng Qian ◽  
Xiaotian Xu ◽  
Song Deng ◽  
Shaofeng Jiang ◽  
Lin Hua
Keyword(s):  
Dynamic Model ◽  
Nonlinear Dynamic ◽  
High Speed ◽  
Dynamic Models ◽  
Time Varying ◽  
Ball Bearings ◽  
Nonlinear Dynamic Model ◽  
Dynamic Behaviors ◽  
Low Speeds ◽  
Heavy Loads

To accurately predict the dynamic behaviors of high speed ball bearings, an investigation on the sliding behavior of balls at high and low speeds, and light and heavy loads is necessary. However, existing nonlinear dynamic models fail to consider comprehensively key factors such as asperity and hydrodynamic tractions, time-varying friction coefficient and time-varying lubricant mode. In this work, these influencing factors are integrated into the nonlinear dynamic model to make it suitable for the working conditions of high and low speeds and light and heavy loads. The dynamic analysis provides the relation of angular speeds of balls with spin and sliding at light and heavy loads, also it reveals the number of pure rolling point under the combined effect of differential sliding and spin sliding. Research results provide a reliable mathematical model and theoretical bases for further studying the dynamic behaviors of high speed ball bearings.

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