Relevant bibliographies by topics / Motor-axial bearing

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Motor-axial bearing'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

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Journal articles on the topic "Motor-axial bearing"

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Voronin, Serhii, Volodymyr Stefanov, Sergii Komar, Andrii Savchenko, and Oleksandr Hubin. "IMPACT OF LOADS ON LOCOMOTIVE MOTOR AXLE BEARINGS ON THE CONDITIONS OF FORMATION OF OIL FILM ON FRICTION SURFACES." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 208 (June 28, 2024): 172–80. http://dx.doi.org/10.18664/1994-7852.208.2024.308611.

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During the active operation of locomotives, a significant portion of failures (up to 20 %) is attributed to the malfunction of motor-axial bearings. This is due to the imperfection of the lubrication system of the motor-axial bearings, the proper functioning of which largely depends on various factors such as climatic conditions, the level of wear of lubricating oil, and lubrication devices, among others. There is a need to improve the existing lubrication systems for motor-axial sliding bearings. One of the methods to address this issue involves examining the factors influencing the lubrication process of the friction surfaces of motor-axial bearings and the conditions of lubricant material supply. The article provides calculations of the loading forces on the motor-axial bearings, their action vectors, and analyzes the impact of these parameters on the ability to form an oil film on the friction surfaces of motor-axial bearings. To determine the magnitude of the load, technical specifications of the locomotive were used, and the relationship between power usage and locomotive speed was analyzed. The study involved an analysis of recent publications regarding the generation of contact pressure force between the contact surfaces of friction pairs, the magnitude of which exceeds permissible limits, considered one of the primary factors leading to bearing failure. Additionally, the existing bearing lubrication system used on the locomotive was analyzed, its shortcomings were identified, and methods for addressing these issues were discussed. The calculations were performed for the 2TE116 locomotive with traction electric motors ED-118B, based on the operational characteristics of the locomotive in the speed range of 0-80 km/h.
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Zhang, Chi, and Guang Zhou Zhao. "Design and FEM Analysis of a High Efficiency Axial-Flux Brushless DC Motor for Flywheel System." Key Engineering Materials 480-481 (June 2011): 1099–104. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1099.

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A high efficiency axial-flux brushless DC motor assisted by self axial magnetic bearing and used in flywheel energy storage system is proposed in this paper. In this design, the rotor with composite rim acts as the flywheel of the system and is sandwiched between two disk type stators which are made of amorphous metal to reduce iron losses. The dual-stator machine combines the functions of axial flux brushless DC motor and axial magnetic bearing to rotate the flywheel-rotor and levitate it in vertical orientation. The other four degrees of freedom in radial directions are constrained by ceramic ball bearings for simple operation, high efficiency and long life span. Optimized design approaches are employed to achieve low losses, and high power density. Three-dimensional FEM analyses are implemented, and the analysis results support the feasibility of the proposed motor.
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Ueno, Satoshi, Masaya Tomoda, and Changan Jiang. "Development of an axial-flux self-bearing motor using two permanent magnet attractive type passive magnetic bearings." International Journal of Applied Electromagnetics and Mechanics 64, no. 1-4 (2020): 827–33. http://dx.doi.org/10.3233/jae-209395.

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This paper introduces an axial-flux self-bearing motor (ASBM) using two permanent magnet attractive type passive magnetic bearings (PMBs). The ASBM provides both functions of a disc motor and thrust magnetic bearing, and controls motor torque and axial force by single rotational magnetic flux. The PMB consists of a cylindrical permanent magnet and an iron shaft with conical edge, and it supports the rotor in radial directions. This motor has a simple structure and control system, and it is possible to reduce the size and cost. In this paper, the structure and control method are introduced, and the results of levitation and rotation tests whose non-contact rotation speed was achieved up to 1,500 rpm are shown.
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Ablyalimov, Oleg, Gabit Bakyt, Nodirjon Tursunov, Utkir Safarov, and Yermek Baubekov. "Research of heat transfer processes in motor-axial bearings of traction electric motors of diesel locomotives." Vibroengineering Procedia 58 (May 15, 2025): 264–70. https://doi.org/10.21595/vp.2025.24955.

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Original calculation schemes of the motor-axle bearing and the distribution of heat flows in the process of heat removal from the surface layer of lubricant to the axle journal of the wheel pair and to the motor-axle bearing liner are proposed, taking into account its middle layer. In order to substantiate the maximum amount of heat released in the motor-axle bearings of a freight diesel locomotive of the 2TE10 series and caused by the action of friction forces in the zone of contact their with the journals of the axles of the wheel pairs, taking into account the theoretical foundations of heat transfer and the accepted assumptions in the specified calculation schemes, analytical dependencies were obtained to determine the quantities characterizing heat removal from the mentioned motor-axial bearings using three flows. As a result of implementing the proposed analytical dependencies and performing numerical calculations, it was proved that the operation of the studied motor-axial bearings is carried out in the semi-fluid friction mode and at negative temperatures of the external (atmospheric) air, their normal operation is not ensured due to the low proportion of heat removal by the lubricant, which does not exceed 1.5 percent, and therefore, this leads motor-axial bearings to premature wear and failure, and thereby reduces the operational reliability of the wheel-motor unit of diesel locomotives.
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SUMINO, Masayuki, and Satoshi UENO. "Tilt control with axial self-bearing motor." Transactions of the JSME (in Japanese) 80, no. 815 (2014): DR0207. http://dx.doi.org/10.1299/transjsme.2014dr0207.

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Okada, Yohji, Toru Masuzawa, Ken-Ichi Matsuda, et al. "Axial Type Self-Bearing Motor for Axial Flow Blood Pump." Artificial Organs 27, no. 10 (2003): 887–91. http://dx.doi.org/10.1046/j.1525-1594.2003.00030.x.

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Yu, Hai Bo, and Kun Wang. "Development of High Speed Motor with Magnetic Bearing." Advanced Materials Research 846-847 (November 2013): 44–47. http://dx.doi.org/10.4028/www.scientific.net/amr.846-847.44.

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In order to in-depth study the magnetic suspension molecular pump technology, a 4kW high speed magnetic motor was firstly developed. The magnetic motor includes 2 radial magnetic bearings, 2 axial magnetic bearing with five degrees of freedom. The wind abrasion and magnetic flux distribution in stators and the gap between the stator and the rotor were analyzed. Then the high speed magnetic motor prototype was introduced in detail. At last, the basic experiment result was present and the conclusions were given.
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YAMASHIRO, Naoto, Yohji OKADA, and Kenichi MATSUDA. "Consequent Type Axial Self-Bearing Motor and Application." Proceedings of Ibaraki District Conference 2003 (2003): 181–82. http://dx.doi.org/10.1299/jsmeibaraki.2003.181.

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Luu, Phuong Thi, Ji-Young Lee, Ji-Heon Lee, and Byung-Chul Woo. "Design and Analysis of a Permanent Magnet Synchronous Motor Considering Axial Asymmetric Position of Rotor to Stator." Energies 12, no. 24 (2019): 4816. http://dx.doi.org/10.3390/en12244816.

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This paper presents the design and analysis of a permanent magnet synchronous motor (PMSM) considering the axial asymmetric PM overhang for a smart actuator (SA) application such as an isokinetic exercise machine. This structure helps take advantage of the motor space effectively and makes the system small in size and light in weight. However, two drawbacks related to the performance of motor occur when the axial asymmetric PM overhang is used: (1) an axial attractive force (AAF) is created, which can produce motor noise and vibration; (2) the torque of motor is reduced compared with the symmetric PM overhang model. We used five steps to solve these problems. Firstly, the AAF according to the variation in axial position of the rotor to the stator was calculated and analyzed. Secondly, the torque was calculated under the same conditions to confirm that the system requirements were satisfied. The three-dimensional finite element analysis was used to determine the AAF and torque. Thirdly, the appropriate axial position of the rotor to the stator was suggested considering the analysis results and space inside the housing. Next, the commercial bearing type was chosen so that the total force acting on the bearing was below the bearing load limit to ensure motor stability. Finally, a prototype model was made and tested to confirm the accuracy of the analytical results. Through this study, by using the axial asymmetric PM overhang, the total length of SA was reduced by 5mm and the performance of motor was guaranteed.
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OHMORI, Kunihiro, Yohji OKADA, Ken-ichi MATSUDA, and Seung-Jong KIM. "706 Design of An Axial-type Self-bearing Motor for Axial Pump." Proceedings of Ibaraki District Conference 2001 (2001): 177–78. http://dx.doi.org/10.1299/jsmeibaraki.2001.177.

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Dissertations / Theses on the topic "Motor-axial bearing"

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Коваленко, Д. М. "Удосконалення режимів стендових випробувань моторно-осьових підшипників маневрових тепловозів". Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/39704.

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Діюча нині система ремонту тягового рухомого складу базується в основному на досвіді багаторічного досвіду. Встановлені нормативи визначають строки та час роботи маневрового локомотива, а також об’єм і технологію ремонту. Первинні нормативи або допуски встановлюються виробником. В процесі подальшої експлуатації та накопичення досвіду ці нормативи змінюються та коригуються.
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Lin, Jin-Peng, and 林金鵬. "Development of a PMAC Self-bearing Motor and Axial Magnetic Bearing Integration System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/znqfu3.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>100<br>In the magnetic levitation system, to realize non-co ntact magnetic suspension, the rotor must be magnetically stabilized in five degrees of freedom. Since the motor is responsible for generating torque in conventional magnetic levitation system, it needs the additional two radial magnetic bearing and one thrust magnetic bearing to realize non-contact magnetic suspension. Self-bearing motor is a result of the integration of a radial magnetic bearing and a motor, which generate motor torque and radial force simultaneously. This essay proposed a three-axis-controlled bearingless motor system which consists of a bearingless motor, a thrust magnetic bearing and a passive magnetic bearing, although less stability than five-DOF bearingless motor system, it still have the advantage of compactness, easily control and low cost. After the three-DOF bearingless motor system is analyzed by finite element analysis software, the passive magnetic bearing is designed, the system component location is analyzed and the force of system is also analyzed, and finally established the prototype system and verified the performance by experiment.
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Book chapters on the topic "Motor-axial bearing"

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Prashad, H. "Axial force on motor bearings: a tool for performance evaluation." In Solving Tribology Problems in Rotating Machines. Elsevier, 2006. http://dx.doi.org/10.1533/9781845691110.149.

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Conference papers on the topic "Motor-axial bearing"

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Zhao, Chengyan, and Satoshi Ueno. "Input-output Behavioral Data-driven LQG Control of Axial-gap Self-bearing Motor." In 2024 International Conference on Advanced Mechatronic Systems (ICAMechS). IEEE, 2024. https://doi.org/10.1109/icamechs63130.2024.10818811.

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Nakamura, Hisato, Taichi Konno, Hiroya Sugimoto, et al. "Decoupling of Magnetic Circuits Between Combined Radial-Axial Magnetic Bearing and Permanent Magnet Bearingless Motor." In 2024 27th International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2024. https://doi.org/10.23919/icems60997.2024.10921000.

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3

Okada, Yohji, Toru Masuzawa, Toshiyuki Kita, et al. "Design of Centrifugal Type Artificial Blood Pump Using Combined Motor-Bearing." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/movic-8414.

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Abstract Application of non-contact, rotary pump for use in artificial heart is highly efficient and prevent thrombosis formation. This paper introduces two types of test design; one is using radial type combined motor-bearing with centrifugal pump. The water pumping test is carried out to confirm the performance. The other one is using axial type combined motor-bearing. The axial type motor controls only one degree-of-freedom in z direction. To control two tilt directions a hybrid (HB) type tilt magnetic bearings are attached on the other surface. Hence it has three active control degrees. Experimental results of the proposed rotary pumps show high potential for its application in artificial heart.
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Ueno, S., and Y. Okada. "Vector control of an induction type axial gap combined motor-bearing." In 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics. IEEE, 1999. http://dx.doi.org/10.1109/aim.1999.803274.

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Salehizadeh, Hamid. "Shock Fragility of Spindle Motors in Hard Drives." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-1079.

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Abstract The susceptibility of spindle motor ball bearings in disk drives to axial shock is considered in this paper. When a hard drive is subjected to an axial shock, the spindle disk pack is excited axially and the ensuing vibrations lead to dynamic forces. Should the maximum force endured by the bearings exceed their rated carrying capacity, permanent bearing damage will take place at the ball/race interface which manifests itself in higher vibration and acoustic levels. To estimate the dynamic bearing force and the shock fragility of a given drive, it is imperative to solve for the vibration of the drive when subjected to shock. This was achieved in the present work by simplifying the dynamics of a hard drive to that of a two degree of freedom mass-spring system. The equivalent mass and stiffness values were obtained by matching the modal frequencies of the 2 DOF model to those of the disk pack. The response of the model to axial shock was next obtained by numerical integration using the Runge-Kutta method. The non-linear bearing stiffness was incorporated using the Hertzian equations in the model. To validate the model, the response of a hard drive to axial shock was measured using an accelerometer mounted on the motor hub. Excellent agreement was obtained between calculated response and experimentally measured motor hub vibration. Having verified the model, the calculated maximum bearing force was used to estimate the drive’s shock threshold. It was found that base casting stiffness and damping play an important role in the dynamic amplification of the bearing force.
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Nguyen, Quang Dich, and Satoshi Ueno. "Axial position and speed vector control of the inset permanent magnet axial gap type self bearing motor." In 2009 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM). IEEE, 2009. http://dx.doi.org/10.1109/aim.2009.5230025.

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Hong, Cencen, Quan Sun, Yongjin Li, and Yijun Du. "Control Strategy for Self-bearing Dual Stator Solid Rotor Axial Flux Induction Motor." In 2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific). IEEE, 2022. http://dx.doi.org/10.1109/itecasia-pacific56316.2022.9941913.

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Kurita, Nobuyuki, Takeo Ishikawa, Naoki Saito, Toru Masuzawa, and Daniel Timms. "A double-sided stator type axial self-bearing motor development for total artificial heart." In 2017 IEEE International Electric Machines and Drives Conference (IEMDC). IEEE, 2017. http://dx.doi.org/10.1109/iemdc.2017.8002190.

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Nguyen, Quang Dich, and Satoshi Ueno. "Sensorless speed control of inset type axial gap self-bearing motor using extended EMF." In 2010 International Power Electronics Conference (IPEC - Sapporo). IEEE, 2010. http://dx.doi.org/10.1109/ipec.2010.5542012.

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Li, Bo, Satoshi Ueno, and Chengyan Zhao. "Data-Driven Iterative Learning LQG Control of Axial-Gap 5-DOF Self-Bearing Motor." In 2022 International Conference on Advanced Mechatronic Systems (ICAMechS). IEEE, 2022. http://dx.doi.org/10.1109/icamechs57222.2022.10003417.

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