Theoretical and experimental vibration studies of lubricated deep groove ball bearings having surface waviness on its races

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

doi:10.1016/j.measurement.2018.07.031

Cited by 30 publications

(13 citation statements)

References 30 publications

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“…For example, Wardle [3] using measured waviness of the ball and raceway surface, obtained bearing excitation forces close to the values predicted in his theoretical model [4]. In other experimental studies, Liu et al [5] measured the actual waviness, while Shah and Patel [6] and Babu et al [7] generated artificial waviness on the surface of inner and outer rings and used these waviness values as excitation source. Such experimental studies have often investigated the effect of outer ring waviness [5,8], inner ring waviness [7] or a combination of both [9].…”

Section: Introductionmentioning

confidence: 69%

Development and verification of frequency domain solution methods for rotor-bearing system responses caused by rolling element bearing waviness

Choudhury

Kurvinen

Viitala

et al. 2022

Mechanical Systems and Signal Processing

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Section: Introductionmentioning

confidence: 69%

Development and verification of frequency domain solution methods for rotor-bearing system responses caused by rolling element bearing waviness

Choudhury

Kurvinen

Viitala

et al. 2022

Mechanical Systems and Signal Processing

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“…Further, the simulated and experimental results were validated. Effect of surface waviness on vibration spectra has been focused by Dipen Shah et al 17 and S S Kulkarni et al 18 by theoretical and experimental analysis. Authors mentioned the effect of the number of balls on the vibrations produced by bearing with waviness on the race.…”

Section: Introductionmentioning

confidence: 99%

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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“…16 focused on the effects of waviness on vibration of ball bearings using an experimental analysis method developed by adopting signal coherence theory of multiple- inputs/single-output (MISO) system and observed that the first main spectral peak frequency is corresponding to the natural frequency of the bearing, so it was verified that the waviness has the highest influence on vibration at the natural frequency. Shah and Patel 17 studied the vibrations of deep groove ball bearings having waviness on the surface of bearing races using a new dynamic model. The vibrations velocity spectra computed through dynamic models were validated with experimental results and were in good agreement with theoretical and experimental results.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration response analysis of a double-row self-aligning ball bearing due to surface imperfections

Parmar

Saran

Harsha

2020

Proceedings of the Institution of Mechanical Engineers, Part K:

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This work attempts to study the vibration response of a double-row self-aligning ball bearing due to surface and localized imperfections. For the contact deformation at the ball–race interactions, the Hertzian load–deflection relation is used for the evaluation of time-varying contact stiffness. The elastohydrodynamic theory is applied to find out the central film thickness. For both the inner and outer race waviness cases, the system response is observed as periodic (with vibrations of high amplitude) at [Formula: see text], i.e. multiples of Nb and its vicinity, but gradually turns to quasi-periodic as the value of waviness order reach some intermediate value. In the case of a localized defect, the double impulse phenomenon marks the entry and exit events of the rolling element in and out of the rectangular spall. Hence, this analysis can be used as a diagnostic tool with system dynamic characteristics for distributed and localized defect identification.

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Theoretical and experimental vibration studies of lubricated deep groove ball bearings having surface waviness on its races

Cited by 30 publications

References 30 publications

Development and verification of frequency domain solution methods for rotor-bearing system responses caused by rolling element bearing waviness

Development and verification of frequency domain solution methods for rotor-bearing system responses caused by rolling element bearing waviness

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

Nonlinear vibration response analysis of a double-row self-aligning ball bearing due to surface imperfections

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