Study on Excitation Forces Generated by Defective Races of Rolling Bearing

Shah, Dipen S.; Patel, V. N.

doi:10.1016/j.protcy.2016.03.019

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…Dipen Shah et al 14 simulate excitation forces caused due to bearing race defects, and defect frequencies have been confirmed. Both local and distributed defects have been modeled.…”

Section: Introductionmentioning

confidence: 90%

Investigation of grease lubricated deep groove ball bearing with multi-defected outer race using vibration signature analysis

Utpat¹,

Ingle²

2021

Noise & Vibration Worldwide

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Failure of any rotary machine is mainly due to bearing failure being the key element. Defect frequency is the function of speed, ball diameter, and pitch circle diameter of bearing. The number of defects does not affect the excitation frequency, but increase in the level of vibrations is observed in total. The inner race is mounted on the rotary shaft, and the outer race is fixed in the housing. Hence, a defect on the outer race does not rotate with the shaft. This article highlights the study of the multi-crack detection technique at a comparatively higher speed. Amplitudes of vibrations increase with speed, but with load, they almost remain the same. The experiment has been performed at the range from 1000 to 5000 r/min with 5 kg load on the test bearing. The location and size of the defect affect the level of vibrations with noticeable increase. However, the presence of a second defect with respect to the load zone plays an important role. As the defect is at the peak position in the load zone, outer race defect frequency excites more in the vibration spectra. The location and size of the second defect are varied, and acceleration amplitude parameters like RMS, peak, and peak to peak are compared. The current work emphasizes the effect of location and severity of the second defect on the vibration spectra and amplitude parameters of the vibrations.

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“…Dipen Shah et al 14 simulate excitation forces caused due to bearing race defects, and defect frequencies have been confirmed. Both local and distributed defects have been modeled.…”

Section: Introductionmentioning

confidence: 90%

Investigation of grease lubricated deep groove ball bearing with multi-defected outer race using vibration signature analysis

Utpat¹,

Ingle²

2021

Noise & Vibration Worldwide

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“…The model developed using Dimension analysis predicted vibration amplitude satisfactorily and presented industrial case studies for validation. Shah et al [8] analyzed the vibration characteristics of rolling element bearings using numerical analysis and diagnosed local and distributed faults. As a result, simulation and numerical analysis effectively investigated the frequency and vibration amplitude characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, simulation and numerical analysis effectively investigated the frequency and vibration amplitude characteristics. Patel et al [9] conducted an experimental study on vibration behaviors of deep groove ball bearings under dynamic radial load for local faults. Also, Tiwari and Gupta [10] studied the dynamic response of an unbalanced rotor supported on a ball bearing for nonlinear dynamic analysis.…”

Section: Introductionmentioning

confidence: 99%

Fault diagnosis of high-speed rotating machines using MATLAB

Joshi¹,

Pujar²

2023

Diagnostyka

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Industrial high-speed rotating machines entail constant and consistent monitoring to prevent downtime, affecting quantity and quality. Complex machines need advanced intelligent fault diagnosis showing minimal errors. This work offers a MATLAB-based fault diagnosis for sugar industry machines. The vibration behavior of physical industrial machines is obtained, and the signals are provided to a MATLAB program to identify the fault.The information helps to suggest remedies to include in the maintenance schedule. The ease and comprehensible nature of the method reduce time and enhance the reliability of condition monitoring for industrial machines.

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“…Performance of rolling element during arriving and departing from the outer race defect at various speeds and loads was inspected practically by Ahmadi et al, 23 who remarked that this model can be used for the detection of defect size. Defect on both races of deep groove ball bearing considering the impact force was described by Shah and Patel, 24 and outcomes were gained in time and frequency spectrum. Cui et al 25 prepared the step-impulse function to measure bearing's fault dimension.…”

Section: Introductionmentioning

confidence: 99%

Influence of roller defect and coupled roller–inner–outer race defects on the performance of cylindrical roller bearing

Patel

Upadhyay

2019

Proceedings of the Institution of Mechanical Engineers, Part K:

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In the present study, a novel mathematical model is developed for the deformation between roller and races of cylindrical roller bearing using the effect of tilting and skewing of roller due to thrust load, radial deflection due to normal load, radial internal gap, and individual defect on roller as well as coupled defect on all races and roller. Also, novel roller defect function is proposed for the preparation of simultaneous nonlinear equations. MATLAB is used to solve nonlinear equations for equilibrium conditions of deflection, radial load, thrust load, moment in plane, and total roller loading. However, waviness due to surface irregularity on both races as well as out-of-balance assembly is not considered in this analysis. The bearing is analyzed for individual roller defect as well as coupled races–roller defects to identify the behavior of bearing under speed-varying conditions. The equation of motion is solved through Newmark-β technique. Defect segment of roller consecutively in contact with both races results in higher acceleration. Time-to-impact concept is utilized for the analysis. The acceleration during roller–race defect interaction with intermittent connection is applied in the model for observation. The outcomes are shown in the time domain, orbit, and envelope analysis, which describe the complexity of the system with speed variation for roller defect and coupled roller–inner–outer race defects. The periodic, quasi-periodic, and chaotic phenomena are observed for roller and coupled defects. Simulated frequencies for all defects are compared with theoretical frequencies to validate the model.

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Study on Excitation Forces Generated by Defective Races of Rolling Bearing

Cited by 7 publications

References 12 publications

Investigation of grease lubricated deep groove ball bearing with multi-defected outer race using vibration signature analysis

Investigation of grease lubricated deep groove ball bearing with multi-defected outer race using vibration signature analysis

Fault diagnosis of high-speed rotating machines using MATLAB

Influence of roller defect and coupled roller–inner–outer race defects on the performance of cylindrical roller bearing

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