Non-linear dynamic response analysis of cylindrical roller bearings due to rotational speed

Patra, Pravajyoti; Saran, V. H.; Harsha, S. P.

doi:10.1177/1464419318762678

Cited by 11 publications

(16 citation statements)

References 30 publications

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“…Zhuo et al 10 performed a study on the dynamic behavior of the self-aligning ball bearing and conducted a parametric study on several parameters like applied loads, internal clearance etc. Patra et al 11 performed a study on the nonlinear dynamic response on the cylindrical roller bearing due to fluctuation in speed and load, the analysis was helpful for online monitoring of fault-free cylindrical roller bearings and for studying the impact of speed on system's dynamical behavior Petersen et al 12 performed an analysis on the variation of stiffness and contact forces of a defective self-aligning ball bearing. They compared the variation of these parameters in the case of dynamic and quasi-static conditions.…”

Section: Elastic Deformation and Time-varying Stiffnessmentioning

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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Section: Elastic Deformation and Time-varying Stiffnessmentioning

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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“…The other peak that contributes significantly to the frequency responses is '6(VC þ X)/9'. Patra et al 33 showed the relation for the dynamic behavior of cylindrical roller bearings with an unbalanced rotor condition as a function of speed which is effective for all the clearance range. Table 3 presents the change in frequency responses of the cylindrical roller bearings due to variation in radial load.…”

Section: Effect Of Radial Internal Clearance On Dynamic Conditionmentioning

confidence: 99%

Vibration response analysis of high-speed cylindrical roller bearings using response surface method

Patra

Saran

Harsha

2020

Proceedings of the Institution of Mechanical Engineers, Part K:

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The operating clearance in a bearing influences friction, load zone size and fatigue life of a bearing. Hence, an effort is made to investigate the effect of radial internal clearance on the dynamical behavior of a cylindrical roller bearing system with an unbalance present in the system. The differential equations representing the dynamics of the cylindrical roller bearings have been derived using Lagrange’s equations and solved numerically using the fourth-order Runge-Kutta iterative method. The nonlinear vibration signature has been analyzed due to the clearance and the same is represented by various tools like Acceleration-time plots, Poincaré plots and FFT plots. The approximation method is used to calculate the load distribution and deformation of the individual rollers located at a different position in the load zone, for a preloading/interference fit and positive internal clearance. A response surface method is used to analyze the severity involved in the system due to the combined effect of independent variables like rotor speed, radial load, and radial internal clearance. The observations presented here are not only useful to diagnose the bearing health condition with respect to parametric effects but also exhibit their interactive effects on bearing performance.

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“…It could be restrained by eccentricity incentives under high speed. 32 Patra et al 33 found that there was an interaction between VC and unbalanced force. Meyer et al 34 indicated that the outer ring rotating frequency generated by the outer race misalignment would modulate nN b f c , leading to the generation of side frequencies.…”

Section: Introductionmentioning

confidence: 99%

Influence of rotational speed on the impact characteristics caused by a localized defect of the outer raceway in a ball bearing under an axial load

Hou

Wang

Peng³

2020

Proceedings of the Institution of Mechanical Engineers, Part K:

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The rotational speed is a crucial parameter for bearing condition monitor. The present study shows the influence of the rotational speed on the impact characteristics caused by a localized defect of the outer raceway. A 2 Nb + 5-degrees-of-freedom nonlinear dynamic model for a ball bearing is developed. The waviness of bearing components, a localized defect of the outer raceway, and the centrifugal forces of balls caused by rotational speed are involved in the ball bearing model. Spectral kurtosis (SK) analysis and envelope spectrum analysis are used to extract the impact signal and confirm the position of the optimal frequency band affected by the impact signal. The peak of the impact signal rises with the increase in rotational speed. The position of the optimal frequency band affected by the impact signal is a linear piecewise function of the rotational speed. These simulated results are verified through vibration experiments of a ball bearing with a localized defect of the outer raceway under an axial load. In addition, considering both a localized defect on the outer raceway and the waviness of bearing components, only when the size of the localized defect is large enough, can the impact signal overcome the influence of the structural vibration of the system to extract impact characteristics. The case studies of high-speed spindle bearing state diagnosis show that high speed is not conducive to the extraction of the impact characteristics.

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Non-linear dynamic response analysis of cylindrical roller bearings due to rotational speed

Cited by 11 publications

References 30 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

Vibration response analysis of high-speed cylindrical roller bearings using response surface method

Influence of rotational speed on the impact characteristics caused by a localized defect of the outer raceway in a ball bearing under an axial load

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