Effect of an unbalanced rotor on dynamic characteristics of double-row self-aligning ball bearing

Parmar, Vivek; Saran, V. H.; Harsha, S. P.

doi:10.1016/j.euromechsol.2020.104006

Cited by 15 publications

(7 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Patra dkk. [6,7] dan Parmar dkk [8] menganalisis perilaku dinamis bantalan rol silinder untuk kondisi rotor yang tidak seimbang dengan variasi kecepatan serta jarak bebas internal dan menganalisis respon getaran menggunakan metode respon permukaan. Dimana amplitudo getaran meningkat seiring bertambahnya jarak bebas internal pada bantalan.…”

Section: Pendahuluanunclassified

Pengaruh Clearance Dan Pembebanan Radial Terhadap Perpindahan, Distribusi Beban Kontak, Dan Kekakuan Elemen Rol Pada Spherical Roller Bearing

Dahlan,

Safitri,

Rusli

et al. 2023

JRM

View full text Add to dashboard Cite

This study aims to determine the effect of clearance and loading regarding to the displacement, distribution of contact loads and stiffness of spherical roller bearings at rest. The displacement formulation of the inner ring of the bearing was developed by defining the angle of inclination of the roller element to the axis of shaft. The comparison between exact calculations using the Matlab program and numerical modeling with MSC Marc for the displacement has an error value of less than 10%. Therefore, the displacement formulation of the inner ring of the bearing is used to calculate the exact distribution of contact load and stiffness of the spherical roller bearing and numerical modeling. The results revealed that the effect of clearance and loading on the displacement of the inner ring of the spherical roller bearing is directly proportional. The contact load of the bearing roller element is distributed over the part of the roller element that is in contact with its path, where the largest contact load occurs at the position of the roller element parallel to the axis of the shaft at rest. Meanwhile, bearing stiffness will decreases with increasing the value of clearance.

show abstract

Section: Pendahuluanunclassified

Pengaruh Clearance Dan Pembebanan Radial Terhadap Perpindahan, Distribusi Beban Kontak, Dan Kekakuan Elemen Rol Pada Spherical Roller Bearing

Dahlan,

Safitri,

Rusli

et al. 2023

JRM

View full text Add to dashboard Cite

show abstract

“…Luo [23,24] introduced methods for estimating the static load rating of spherical plain bearings and conducted life tests on new joint bearings using a testing machine. Spherical bearings have also found application in ship engineering [23][24][25][26][27][28][29][30]. Self-aligning ball bearings [30][31][32] were used as axial load bearings in hydrofoil ship cylinder flanges and dynamic load simulation tests.…”

Section: Introductionmentioning

confidence: 99%

Carrying Capacity of Spherical Hydrostatic Bearings including Elastic Deformation

Zhang,

Yang,

et al. 2024

Lubricants

View full text Add to dashboard Cite

This paper presents a theoretical model for calculating the carrying capacity of spherical hydrostatic bearings, including the deduction and solution of differential equations for fluid flow in the oil seal and the generation of bearing characteristic parameters. An example is used to verify the accuracy of the proposed calculation model. Additionally, the influence of dynamic pressure on the bearing capacity is investigated under various speed conditions. The results demonstrate that as the minimum width of the oil gap decreases, the maximum dynamic pressure increases non-linearly. Furthermore, the maximum dynamic pressure increases with higher rotational speeds, particularly when the width is smaller.

show abstract

“…The model correctly predicted the behavior of bearing in frequency and time domain. Parmar et al [20][21][22] through mathematical modelling and experimentations predicted the response of a double-row self-aligning ball bearing subjected to unbalance rotor conditions, localized defects and misalignment of the raceways. The effect of misalignment of raceways was also investigated using numerical simulations.…”

Section: Introductionmentioning

confidence: 99%

An autonomous method for diagnosing raceway defects and misalignment in a self-aligning rolling-element bearing

Parmar

Saran

Harsha

2022

Proceedings of the Institution of Mechanical Engineers, Part K:

Self Cite

View full text Add to dashboard Cite

This paper presents an autonomous method to diagnose a double-row self-aligning ball bearing for any dynamic misalignment or localized defects, using vibration signals. The frequency spectra from the experimental investigation revealed that irrespective of the health condition of the bearing i.e. either healthy or defective, the frequency spectrum had a clear cage frequency peak whenever the system was under dynamic-misalignment. An improved version of Harmonic Product Spectrum (HPS) called sideband product spectrum (SPS) was used to identify the cage frequency peaks which was preprocessed using kurtosis-based band-pass filter and parameter-optimized variational mode decomposition (VMD) algorithm. A mathematical model is also presented to analyze the dynamic behavior of double-row self-aligning ball bearing under such conditions. From the model, it was realized that during misalignment, the contact load shared by the rolling elements, generates some moment which has a tendency to rotate the bearing’s inner-race about the radial axis and thus resulting in a wobbly rotary motion. This wobbly motion of the inner race in fact characterizes the bearing for dynamic misalignment. The simulated results were in accordance with the experimentally obtained results.

show abstract

Effect of an unbalanced rotor on dynamic characteristics of double-row self-aligning ball bearing

Cited by 15 publications

References 19 publications

Pengaruh Clearance Dan Pembebanan Radial Terhadap Perpindahan, Distribusi Beban Kontak, Dan Kekakuan Elemen Rol Pada Spherical Roller Bearing

Pengaruh Clearance Dan Pembebanan Radial Terhadap Perpindahan, Distribusi Beban Kontak, Dan Kekakuan Elemen Rol Pada Spherical Roller Bearing

Carrying Capacity of Spherical Hydrostatic Bearings including Elastic Deformation

An autonomous method for diagnosing raceway defects and misalignment in a self-aligning rolling-element bearing

Contact Info

Product

Resources

About