An improved dynamic model of defective bearings considering the three-dimensional geometric relationship between the rolling element and defect area

Jiang, Yunchuan; Huang, Wen-Tao; Luo, Jianing; Wang, Weijie

doi:10.1016/j.ymssp.2019.04.056

Cited by 67 publications

(35 citation statements)

References 35 publications

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“…3. The frequencies at which peak amplitudes occur in the frequency spectrum are well governed by the equation for wave pass frequency at the outer race (equations (32) and (33)). Also, abrupt changes in the value of 'q' can be observed at certain waviness order values, where the system response changes its behavior.…”

Section: Discussionmentioning

confidence: 99%

“…It was observed that the contact forces fluctuate around the quasi-static loads and this method provided a deep insight into understanding the time-frequency characteristics of the vibration response. Jiang et al 32 presented an improved dynamical model considering the three-dimensional interaction of the rolling element and the raceways. The double impulse phenomena were observed for various defect sizes and were in good agreement with the experimental results.…”

Section: Localized Imperfectionsmentioning

confidence: 99%

“…Jiang et al. 32 presented an improved dynamical model considering the three-dimensional interaction of the rolling element and the raceways. The double impulse phenomena were observed for various defect sizes and were in good agreement with the experimental results.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Discussionmentioning

confidence: 99%

Section: Localized Imperfectionsmentioning

confidence: 99%

See 1 more Smart Citation

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:

View full text Add to dashboard Cite

show abstract

“…Fig. 4 shows the case when the outer ring has a fault [23,24] located in the lower bearing area, in which θ c is the location of the fault center and θ ca is the fault width, r is the inner ring radius of bearing, R is the outer ring radius of bearing, r g is the section radius at the center of mass of tapered roller. When a roller rolls over the fault area, the roller descending depth c outer between the roller and the raceway can be expressed by:…”

Section: Model Of Outer Ring Faultmentioning

confidence: 99%

Establishment of Dynamic Model of axle Box Bearing of high-speed Train under Variable Speed Conditions

Liu

Wang

Zhang

et al. 2021

Preprint

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This paper establishes a dynamic model of the bearing rotor system of a high-speed train under variable speed conditions. Different from previous works, the proposed model simplifies the contact stress and considers the compensation balance excitation caused by the rotor mass eccentricity. The angle iteration method is used to solve the challenging problem that the roller space position cannot be determined in bearing rotation. The simulation results show that the model accurately describes the dynamics of bearing under varying speed profiles that contain acceleration, deceleration and speed oscillation stages. The order ratio spectrum of the bearing vibration signal indicates that both single frequency and multiple frequency in simulation results are consistent with that in theoretical results. Experiments of bearing with outer ring fault and inner ring fault under various operating conditions are presented to verify the developed model.

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“…4 Gao et al investigated the nonlinear dynamic characteristics of rolling bearing with a local defect on the surface of the outer race or the inner race, and the effect of the local defect excited by the unbalance excitations on the vibration amplitudes was analyzed. 5 The vibration response of the defective rolling bearing was studied, and the relationship between defect size and impulse response of the bearing system was quantified. 6 The dynamic behavior of cylindrical roller bearings was dealt with by Patra et al, and the stiffness and damping nonlinearities at the contact points resulting from Hertzian contact force between rollers and races were discussed.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic analysis of worn oil-lubricated rolling bearings

Fang¹,

Liu

Yang³

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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Based on the elastohydrodynamic theory, the nonlinear dynamic behavior of worn oil-lubricated rolling bearings is explored, and the dynamic response including the effect of trajectory of the axis center, the accelerated speed, and the film thickness is analyzed. The worn model is represented by the worn depth. The discrete iterative method and implicit Euler method are combined to solve the dynamic equations. In numerical examples, the trajectory of the axis center, the accelerated speed and the film thickness under different worn depths are discussed. It is found that the stabilized point shows significant variation with the worn depth, and the wear effect is also quite related with the rolling speed. The trajectory of the axis center of worn bearing subjected to a step load is also examined in detail.

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An improved dynamic model of defective bearings considering the three-dimensional geometric relationship between the rolling element and defect area

Cited by 67 publications

References 35 publications

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

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

Establishment of Dynamic Model of axle Box Bearing of high-speed Train under Variable Speed Conditions

Nonlinear dynamic analysis of worn oil-lubricated rolling bearings

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