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Angular Misalignment

The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform

Seongwook Hong – 1st expert on this subject based on the ideXlab platform

  • skidding analysis of Angular contact ball bearing subjected to radial load and Angular Misalignment
    Journal of Mechanical Science and Technology, 2019
    Co-Authors: Laily Oktaviana, Vancanh Tong, Seongwook Hong

    Abstract:

    Skidding is a phenomenon that frequently occurs in ball–raceway contact areas of bearings and often leads to their early failure. This paper presents a skidding analysis of Angular contact ball bearings (ACBBs) subjected to various boundary conditions. A five degrees-offreedom quasi-static model for ACBBs was employed to investigate skidding with ball and race contact forces and inertial loading by rotational speed. The model provided the internal load distribution of all rolling elements, which was subsequently used for the skidding prediction. Hirano’s criterion was used as a theoretical basis for the skidding analysis of ACBBs. Simulations were performed to investigate the influence of external loading, rotational speed, and Angular Misalignment on the bearing skidding. The effects of the preload method and initial contact angle on the skidding were also considered. As a result, this study provided an in-depth observation of skidding in ACBBs subjected to various operating conditions.

  • study on the running torque of Angular contact ball bearings subjected to Angular Misalignment
    Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2018
    Co-Authors: Vancanh Tong, Seongwook Hong

    Abstract:

    Angular Misalignment is unavoidable in most applications of rolling-element bearings. The goal of this study is to examine the effects of Angular Misalignment on the running torque of Angular contact ball bearings. A computational method to calculate the running torque of misaligned Angular contact ball bearings was introduced. Then, the effects of Angular Misalignment, along with radial and axial loading, on the running torque of Angular contact ball bearings were investigated for two representative preloading methods: constant-force preload and constant-displacement preload. The simulation results showed that (1) the Angular Misalignment, irrespective of bearing loading, significantly increases the Angular contact ball bearing running torque when the constant-displacement preload method was implemented, and (2) the Angular Misalignment has an insignificant effect on the Angular contact ball bearing running torque when the constant-force preload method was adopted. Furthermore, an extensive simulation wa…

  • the effect of Angular Misalignment on the stiffness characteristics of tapered roller bearings
    Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science, 2017
    Co-Authors: Vancanh Tong, Seongwook Hong

    Abstract:

    The effect of Angular Misalignment between inner and outer raceways on the stiffness characteristics of tapered roller bearings (TRBs) is investigated. A computational procedure is introduced to so…

Yao Wu – 2nd expert on this subject based on the ideXlab platform

  • Friction torque study on double-row tapered roller bearing
    2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019
    Co-Authors: Tengfei Xu, Lihua Yang, Yao Wu

    Abstract:

    Double-row tapered roller bearings (DTRBs) are key components of rotating machineries due to its great advantages in load-carrying and stiffness. Friction torque is one of the major indicators used to evaluate the performance of rolling bearing because it directly related to the power loss and heat generation. Nevertheless, the friction torque of DTRB is not deeply studied in the available literatures, especially those consider the influence of Angular Misalignment and radial clearance. Therefore, in current paper, the friction torque of DTRB is thoroughly investigated under combined radial and thrust load according to the extended mechanical model of DTRB. The total friction torque is considered as the summation of EHL rolling friction torque, elastic hysteresis loss, sliding friction at rib-roller end contact and viscous drag friction of lubricant. The current work mainly considers the influences of three parameters: axial pre-deformation, initial radial clearance and Angular Misalignment on the friction torque of the first and the second row of DTRB. The results indicate that the friction torque of these two rows of DTRB are greatly determined by the above parameters. Regardless the first or the second row, friction torques are both increase with the increase of axial pre-deformation and positive/negative Angular Misalignment, while decrease with the increase of initial radial clearance. The analysis of friction torque for DTRB will provide some useful guidance for the applications of DTRB.

  • mechanical behavior of double row tapered roller bearing under combined external loads and Angular Misalignment
    International Journal of Mechanical Sciences, 2018
    Co-Authors: Lihua Yang, Tengfei Xu, Haoliang Xu, Yao Wu

    Abstract:

    Abstract In actual engineering applications, single-row tapered roller bearing is usually assembled into double-row bearing to accommodate the heavy load conditions. The running safety and stability of machineries are highly determined by the characteristics of double-row tapered roller bearing. Therefore, the mechanical behavior of double-row tapered roller bearing is discussed in current work by extending the mathematical model of three degrees of freedom. A comprehensive analytical procedure for double-row tapered roller bearing in the presence of combined external loads and Angular Misalignment is proposed. Meanwhile, centrifugal load is considered based on the theory of three degrees of freedom. Unlike other researches, the external loads and Angular Misalignment are taken as the so-called mixed input parameters in current work to deal with the quasi-static equilibrium equations of double-row tapered roller bearing by using the iterative technique known as Newton-Raphson method. The resisting moment, contact loads and fatigue life of double-row tapered roller bearing under different loads are mainly studied in present work. Meanwhile, the comprehensive calculations demonstrate the effects of external loads, axial pre-deformation, bearing rotating speed, and Angular Misalignment on the characteristics of double-row tapered roller bearing. The results indicate that the Angular Misalignment and axial pre-deformation can highly influence the resisting moment. The contact state between roller and inner ring as well as the contact state between roller and guiding flange of bearing are remarkably affected by the factors aforementioned. Moreover, the fatigue life of double-row tapered roller bearing is dependent on the rotating speed, external loads, and Angular Misalignment in a large extent. The analytical method and results reveal the several important aspects of double-row tapered roller bearing in applications and thus would help the selection, design and assembling of the bearing.

Vancanh Tong – 3rd expert on this subject based on the ideXlab platform

  • skidding analysis of Angular contact ball bearing subjected to radial load and Angular Misalignment
    Journal of Mechanical Science and Technology, 2019
    Co-Authors: Laily Oktaviana, Vancanh Tong, Seongwook Hong

    Abstract:

    Skidding is a phenomenon that frequently occurs in ball–raceway contact areas of bearings and often leads to their early failure. This paper presents a skidding analysis of Angular contact ball bearings (ACBBs) subjected to various boundary conditions. A five degrees-offreedom quasi-static model for ACBBs was employed to investigate skidding with ball and race contact forces and inertial loading by rotational speed. The model provided the internal load distribution of all rolling elements, which was subsequently used for the skidding prediction. Hirano’s criterion was used as a theoretical basis for the skidding analysis of ACBBs. Simulations were performed to investigate the influence of external loading, rotational speed, and Angular Misalignment on the bearing skidding. The effects of the preload method and initial contact angle on the skidding were also considered. As a result, this study provided an in-depth observation of skidding in ACBBs subjected to various operating conditions.

  • study on the running torque of Angular contact ball bearings subjected to Angular Misalignment
    Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2018
    Co-Authors: Vancanh Tong, Seongwook Hong

    Abstract:

    Angular Misalignment is unavoidable in most applications of rolling-element bearings. The goal of this study is to examine the effects of Angular Misalignment on the running torque of Angular contact ball bearings. A computational method to calculate the running torque of misaligned Angular contact ball bearings was introduced. Then, the effects of Angular Misalignment, along with radial and axial loading, on the running torque of Angular contact ball bearings were investigated for two representative preloading methods: constant-force preload and constant-displacement preload. The simulation results showed that (1) the Angular Misalignment, irrespective of bearing loading, significantly increases the Angular contact ball bearing running torque when the constant-displacement preload method was implemented, and (2) the Angular Misalignment has an insignificant effect on the Angular contact ball bearing running torque when the constant-force preload method was adopted. Furthermore, an extensive simulation wa…

  • the effect of Angular Misalignment on the stiffness characteristics of tapered roller bearings
    Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science, 2017
    Co-Authors: Vancanh Tong, Seongwook Hong

    Abstract:

    The effect of Angular Misalignment between inner and outer raceways on the stiffness characteristics of tapered roller bearings (TRBs) is investigated. A computational procedure is introduced to so…