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Relevant bibliographies by topics / Double row angular contact bearing

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Academic literature on the topic 'Double row angular contact bearing'

Author: Grafiati

Published: 28 June 2021

Last updated: 17 February 2022

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Journal articles on the topic "Double row angular contact bearing"

1

Geng, Keke, and Shengye Lin. "Effect of angular misalignment on the stiffness of the double-row self-aligning ball bearing." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 4 (November 7, 2019): 946–62. http://dx.doi.org/10.1177/0954406219885979.

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The double-row self-aligning ball bearing commonly runs with angular misalignment between the inner and outer rings, and the angular misalignment significantly affects the bearing performance. However, the effect of angular misalignment on the dynamic characteristics of the double-row self-aligning ball bearing has not been studied thoroughly. This paper investigates the effect of angular misalignment on the stiffness of the double-row self-aligning ball bearing. The quasi-static model for the double-row self-aligning ball bearing is established with five degrees of freedom, namely, three translational displacements along x, y, and z directions and two tilting angles around x-axis and y-axis. The internal clearance between balls and raceways is included in the presented model. The formulation of the three-dimensional stiffness matrix for the double-row self-aligning ball bearing is analytically derived, and is verified by comparing with the available dada in published literature. Finally, the stiffness of the double-row self-aligning ball bearing under various angular misalignment conditions is analyzed systematically. The results show that the tilting angles vary the contact angles and contact forces of the compressed balls in the double-row self-aligning ball bearing, thus affect the bearing stiffness; the bearing stiffness decreases with the internal clearance; the angular misalignment significantly impacts the stiffness of the bearing running at a low speed.

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2

Bercea, I., D. Nélias, and G. Cavallaro. "A unified and simplified treatment of the non-linear equilibrium problem of double-row rolling bearings. Part 1: Rolling bearing model." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 217, no. 3 (March 1, 2003): 205–12. http://dx.doi.org/10.1243/135065003765714854.

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To increase the rigidity of bearings-shaft systems, the shaft is often supported by a series of double-row rolling bearings. Little work on multiple-row rolling bearings has been published. A comprehensive model is proposed which permits the determination of the internal interactions. The total elastic deflection between bearing rings is described using a vector-and-matrix method. A variety of double-row rolling bearing types are analysed, such as tapered roller bearing, cylindrical roller bearing, spherical roller bearing, self-aligning ball bearings and angular contact ball bearing. The basic internal geometry (including the internal clearance) and the effect of the initial preload (in term of the initial axial compression) are considered.

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3

Zheng, Jingyang, Jinchen Ji, Shan Yin, and Van-Canh Tong. "Fatigue life analysis of double-row tapered roller bearing in a modern wind turbine under oscillating external load and speed." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 15 (March 17, 2020): 3116–30. http://dx.doi.org/10.1177/0954406220911966.

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Fatigue life analysis of roller bearing is usually performed for bearings under constant rotating speed and invariant loading conditions. For the bearings used in offshore floating direct-drive wind turbines, they often experience oscillating motions with varying loading patterns, for which the standard fatigue life analysis is not valid due to the presence of fluctuating loads. This paper presents the fatigue life analysis of a double-row tapered roller bearing under oscillating external load and speed conditions, which is used to support the main shaft of a large modern direct-drive wind turbine. First, a comprehensive quasi-static model of the double-row tapered roller bearing is developed for determining the internal load distribution of rollers. The contact pressure of rollers is then studied using an iterative scheme based on the elastic contact model. After that, the formulation of basic rating life of the double-row tapered roller bearing with oscillating external load and speed is given to calculate the fatigue life. Numerical simulations are carried out to investigate the effects of the oscillating load and speed, angular misalignment, and internal clearance on the fatigue life of the bearing.

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4

Elsyamba, Alex Ttesa, Santoso Mulyadi, and Boy Arief Fachri. "PENGARUH TIPE SINGLE DAN DOUBLE ROW ANGULAR CONTACT BALL BEARING TERHADAP ROLLING RESISTANCE." J-Proteksion 3, no. 2 (February 28, 2019): 35. http://dx.doi.org/10.32528/jp.v3i2.2251.

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Gunduz, Aydin, Jason T. Dreyer, and Rajendra Singh. "Effect of bearing preloads on the modal characteristics of a shaft-bearing assembly: Experiments on double row angular contact ball bearings." Mechanical Systems and Signal Processing 31 (August 2012): 176–95. http://dx.doi.org/10.1016/j.ymssp.2012.03.013.

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Sang, Lu Ping. "Turning-Milling Machining Center of Each Axis Movement Principle and the Headstock Structure Analysis." Advanced Materials Research 912-914 (April 2014): 878–81. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.878.

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Turning milling machining center are analyzed the structure and working principle of headstock of numerical control machine tool headstock consists of motor, drive system and components of the head of a bed, is mainly used to achieve the main movement of the machine tool. Spindle structure adopts precision double row cylindrical roller bearing and two-way thrust angular contact ball bearing group and type. The machine is the best combination of lathe and milling machine. Configuration French NUM1060 system, realize five axis control, a loading card can complete a variety of difficult machining of complex.

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7

Tong, Van-Canh, and Seong-Wook Hong. "Analysis of the Stiffness and Fatigue Life of Double-Row Angular Contact Ball Bearings." Journal of the Korean Society for Precision Engineering 34, no. 11 (November 1, 2017): 813–21. http://dx.doi.org/10.7736/kspe.2017.34.11.813.

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Gunduz, Aydin, and Rajendra Singh. "Stiffness matrix formulation for double row angular contact ball bearings: Analytical development and validation." Journal of Sound and Vibration 332, no. 22 (October 2013): 5898–916. http://dx.doi.org/10.1016/j.jsv.2013.04.049.

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9

Adamčík, Pavel, and Zuzana Murčinková. "Impulse Response of the Elasto-Hydrodynamic Lubrication Film of a Rolling Bearing to Dynamic Excitation of a Flat Belt Drive." Materials 13, no. 20 (October 13, 2020): 4533. http://dx.doi.org/10.3390/ma13204533.

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The impulse response of a rolling bearing and its principal component, the elasto-hydrodynamic lubrication film (EHDL), are analysed. When measuring the vibrations of bearings, we observed that the impulse response was mostly caused by defects (fatigue damage) on the raceways and/or rolling elements. However, this phenomenon can also occur in new defect-free roller bearings, where it is not commonly expected. This study presents an experiment that identifies the conditions of dynamic excitation for the impulse response of the EHDL, the source of which is not defects, but the EHDL itself. The EHDL responds in the form of impulses in case the velocity of its radial deformation is too fast. This is an unfavourable phenomenon that significantly shortens the service life of bearings. To analyse the dynamic excitation conditions, a testing bench at speeds up to 135,000 rpm with a flat belt drive was used. The testing bench enabled the formation of the so-called beat excitation from two harmonic excitation forces close in rotational frequency. The subject of this study is a defect-free high-speed double-row angular contact ball bearing used in the textile industry. We also present other physical conditions for the occurrence of undesired impulse responses that are caused by the EHDL.

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Choi, Dong-Hoon, and Ki-Chan Yoon. "A Design Method of an Automotive Wheel-Bearing Unit With Discrete Design Variables Using Genetic Algorithms." Journal of Tribology 123, no. 1 (August 1, 2000): 181–87. http://dx.doi.org/10.1115/1.1329878.

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In order to improve the efficiency of the design process and the quality of the resulting design, this study proposes a design method for determining design variables of an automotive wheel-bearing unit of double-row angular-contact ball bearing type by using a genetic algorithm. The desired performance of the wheel-bearing unit is to maximize system life while satisfying geometrical and operational constraints without enlarging mounting space. The design variables selected are number of balls, initial contact angle, standard ball diameter, pitch circle diameter, preload, distance between ball centers, and wheel offset, which must be selected at the preliminary design stage. The use of gradient-based optimization methods for the design of the unit is restricted because this design problem is characterized by the presence of discrete design variables such as the number of balls and standard ball diameter. Therefore, the design problem of rolling element bearings is a constrained discrete optimization problem. A genetic algorithm using real coding and dynamic mutation rate is used to efficiently find the optimum discrete design values. To effectively deal with the design constraints, a ranking method is suggested for constructing a fitness function in the genetic algorithm. A computer program is developed and applied to the design of a real wheel-bearing unit model to evaluate the proposed design method. Optimum design results demonstrate the effectiveness of the design method suggested in this study by showing that the system life of an optimally designed wheel-bearing unit is enhanced in comparison with that of the current design without any constraint violations. It is believed that the proposed methodology can be applied to other rolling element bearing design applications.

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Dissertations / Theses on the topic "Double row angular contact bearing"

1

Gunduz, Aydin. "Multi-Dimensional Stiffness Characteristics of Double Row Angular Contact Ball Bearings and Their Role in Influencing Vibration Modes." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1326397623.

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Svoboda, Tomáš. "Experimentální ověření tuhosti ložisek polohovacího mechanismu pro optickou komunikaci mezi satelity." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443728.

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This master´s thesis deals with the determination of the stiffness of a preloaded double-row bearing with an angular contact in the relevant conditions. The introduction describes the basic knowledge about double row angular contact bearings and the relationship between internal clearance, preload and other effects on stiffness. An overview of studies dealing with bearing stiffness and an overview of devices used for experimental stiffness determination is given. Subsequently, the solution itself is described, in which the theoretical calculation of the bearing stiffness was performed first. To determine the experimental values, it was necessary to design and construct experimental device for testing the bearing in the relevant conditions. The effect of material and temperature on the stiffness of the bearing was determined from the measured data and theoretical calculations. The result of this thesis is a functional device, which was used to test the bearing in the thermal chamber.

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Books on the topic "Double row angular contact bearing"

1

Center, Lewis Research, ed. Computer program for analysis of high speed, single row, angular contact, spherical roller bearing, SASHBEAN. [Cleveland, Ohio]: Lewis Research Center, National Aeronautics and Space Administration, 1993.

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Conference papers on the topic "Double row angular contact bearing"

1

Gunduz, Aydin, Jason T. Dreyer, and Rajendra Singh. "Effects of Preloads on Vibration Transmission Through Double Row Angular Contact Ball Bearings." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47759.

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This work investigates the role of double row angular contact ball bearings as a vibration transmitter in shaft-bearing assemblies. In our analyses the double row bearings are represented as five dimensional stiffness elements (with associated damping) through an extension of the stiffness matrix concept described by Lim and Singh (1989) for single row bearings to double row angular contact ball bearings. In particular, the effects of bearing preloads on dynamic characteristics of double row angular contact ball bearings are first numerically explored. The dynamic responses of face-to-face, back-to-back and tandem arrangements are evaluated on a comparative basis under various preloads. The nature and extent of preloads significantly affect the vibration characteristics of the bearing assembly due to major changes in the diagonal and off-diagonal elements of the stiffness matrix, and these effects vary for alternate configurations. The dynamic effects of bearing preloads are then experimentally investigated for a wheel bearing assembly containing double row angular contact ball bearings (with back-to-back arrangement) under two different preloading mechanisms. Experiments show that the mechanism and amount of bearing preloads significantly affect the system natural frequencies, mode shapes and vibration amplitudes, thus altering the vibration behavior of the bearing assembly. Suggestions for further work and applications will be briefly mentioned.

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2

Shao, Qing, Tao Xu, and Yoshino Tatsuo. "Optimal fatigue life design of double row angular contact ball bearings by an adaptive RL-BFGS algorithm." In 2020 IEEE International Conference on Artificial Intelligence and Computer Applications (ICAICA). IEEE, 2020. http://dx.doi.org/10.1109/icaica50127.2020.9181947.

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3

Hosokawa, Ricardo Shindi, Renato Acácio Alves de Oliveira, Danilo Mescolotto Franco, and Allyson de Aguiar Vendrasco. "DOUBLE ROW REGULAR CONTACT BALL BEARING FOR AXLE DRIVES." In SAE Brasil 2009 Congress and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2009. http://dx.doi.org/10.4271/2009-36-0055.

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4

Chappati, Veera Sesha Kumar, Vijay Tijare, Dilipkumar B. Alone, Janaki Rami Reddy Mudipally, and Jayaraman Manickam. "Bearing Failure Investigation of Turbomachinery Test Rig." In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3611.

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This paper presents the investigation of bearing failure in a compressor test rig which has been satisfactorily in operation. Two pair of single row angular contact ball bearings, each pair in tandem, and the pairs in turn in back to back support the rotor shaft to meet compressor thrust and to provide moderate stiffness for smooth operation. Since being experimental rig, it is reassembled several times involving bearing replacements on each occasion. Recently one bearing on one side pair is found severely damaged and the other bearing of the pair with minor damage. The bearing with minor damage supported the rotor and this evaded the initial diagnostics until the time of severe damage. Initial investigation revealed that the primary cause of failure is washed off by the secondary failure. A thorough, systematic investigation with the help of fishbone approach is carried in order to find out the root cause of the failure and also to decide on new rig. This investigation revealed lack of preload as the major cause and bearing seat clearance as minor problem. New procedure is adopted to ensure proper preload and the rig is back in operation.

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5

Aggarwal, A. K., D. M. Michaels, and C. H. Keller. "Computer Aided Analysis of High-Speed Single Row, Spherical Roller Bearings and Comparison With Full-Scale Test Results." In ASME 1993 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/cie1993-0044.

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Abstract Single row, angular contact, spherical roller bearings were designed, analyzed, and tested to study their feasibility in a high speed (1.15 million DN) spiral bevel input pinion application. A mathematical formulation, modeling the mechanics of internal motions, load and stress distributions, lubricant flow, sliding friction, heat generation and heat transfer, was developed to analyze the bearing performance and predict operating characteristics. An interactive computer program, capable of running on a DOS PC, was then developed to solve the bearing model for the given parameters of geometry, materials, loads, and speed. The computer program, named SASHBEAN (Sikorsky Aircraft Spherical Roller High Speed Bearing ANalysis), also provided the capability of “lumped capacity” thermal analyses of the bearing and its supporting mechanical system. Six test bearings, conforming to a 216 cylindrical roller bearing OD (140 mm) and ID (80mm), were manufactured using Carpenter Pyrowear® Alloy 53 steel rings. Both conventional (with steel rollers) and hybrid (with silicon nitride rollers) configurations were built and tested under different setup conditions of loads (radial and axial), speed, and lubrication. Excellent correlation was found between the full scale test data and the computer analyses results. The analysis also provides an excellent comparison of the performance characteristics of an hybrid bearing with those of an “all steel” bearing for this high speed transmission application.

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