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Статті в журналах з теми "Magnetic levitation; vibration isolation"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 29 січня 2023

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1

Yalçın, Barış Can, Mert Sever, and Kadir Erkan. "Observer-based H2 controller design for a vibration isolation stage having hybrid electromagnets." Journal of Low Frequency Noise, Vibration and Active Control 37, no. 4 (July 10, 2018): 1134–50. http://dx.doi.org/10.1177/1461348418782170.

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Анотація:

Vibration isolation systems based on hybrid electromagnets, consisting of electromagnet and permanent magnet, have a potential usage in many industrial areas, such as clean room design, transportation, semiconductor manufacturing, suspension systems, and robotic surgery due to providing mechanical contact free vibration isolation. Using permanent magnets in the electromagnet structure has some crucial advantages, such as a minimized volume and a more compact structure. Furthermore, the essential force for levitation of vibration isolation stage can be generated by only the permanent magnet(s), which means, by using hybrid electromagnets, magnetic levitation can be achieved with considerably low energy consumption against possible vibrations. This property is called zero-power behavior. However, the main problems of magnetic levitation process are as follows: it has highly nonlinear nature even if it can be linearized; it has unstable pole(s), which makes the system vulnerable in terms of stability. In recent years, linear matrix inequality-based design of controllers has received considerable attention and become very popular due to their ability to satisfy multiobjective design requirements. However, an observer-based H2 controller design for a vibration isolation system having hybrid electromagnets has not been considered yet. Therefore, the linear matrix inequality-based controller is employed to minimize the effect of disturbances on the following objectives, such as vibration isolation, zero-power property, and protection of the levitation gap. The effectiveness of the proposed method is shown with the numerical simulation studies and compared with classical Linear Quadratic Regulator (LQR) approach.

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2

Kou, Baoquan, Yiheng Zhou, Xiaobao Yang, Feng Xing, and He Zhang. "Electromagnetic and Mechanical Characteristics Analysis of a Flat-Type Vertical-Gap Passive Magnetic Levitation Vibration Isolator." Shock and Vibration 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/5327207.

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In this paper, we describe a flat-type vertical-gap passive magnetic levitation vibration isolator (FVPMLVI) for active vibration isolation system (AVIS). A dual-stator scheme and a special stator magnet array are adopted in the proposed FVPMLVI, which has the effect of decreasing its natural frequency, and this enhances the vibration isolation capability of the FVPMLVI. The structure, operating principle, analytical model, and electromagnetic and mechanical characteristics of the FVPMLVI are investigated. The relationship between the force characteristics (levitation force, horizontal force, force ripple, and force density) and major structural parameters (width and thickness of stator and mover magnets) is analyzed by finite element method. The experiment result is in good agreement with the theoretical analysis.

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3

Tsuda, M., K. Tamashiro, S. Sasaki, T. Yagai, T. Hamajima, T. Yamada, and K. Yasui. "Vibration Transmission Characteristics Against Vertical Vibration in Magnetic Levitation Type HTS Seismic/Vibration Isolation Device." IEEE Transactions on Applied Superconductivity 19, no. 3 (June 2009): 2249–52. http://dx.doi.org/10.1109/tasc.2009.2019139.

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4

Wu, Qian Qian, Rong Qiang Liu, Hong Hao Yue, Zong Quan Deng, and Hong Wei Guo. "Design and Optimization of Magnetic Levitation Actuators for Active Vibration Isolation System." Advanced Materials Research 774-776 (September 2013): 168–71. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.168.

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Actuator based on Lorentz force exhibits excellent isolating performance with its non-contact characteristic, especially during frequency bandwidth below 5Hz. In this paper, mathematical model of the magnetic levitation actuator is constructed. In order to obtain better performance, parametric design of the structure of magnetic actuator is carried out and a multi-objective optimization method is proposed to maximize Lorentz force and minimize the mass of coil on the basis of genetic algorithm in the optimization process. A designing optimization program is developed, by which optimized parameters of magnetic actuator with maximal actuator force and minimal mass of coil can be identified to conduct experiment on ground. Compared with initial values in an instance, the optimized method is proven to be feasible and has the value of practical application.

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5

Li, Qiang, Shan Li, Fengxu Li, Dengfeng Xu, and Zhaoyun He. "Analysis and Experiment of Vibration Isolation Performance of a Magnetic Levitation Vibration Isolator with Rectangular Permanent Magnets." Journal of Vibration Engineering & Technologies 8, no. 5 (November 7, 2019): 751–60. http://dx.doi.org/10.1007/s42417-019-00188-z.

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6

Zhu, Tao, Benjamin Cazzolato, William S. P. Robertson, and Anthony Zander. "Vibration isolation using six degree-of-freedom quasi-zero stiffness magnetic levitation." Journal of Sound and Vibration 358 (December 2015): 48–73. http://dx.doi.org/10.1016/j.jsv.2015.07.013.

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7

NAGASAKI, Yoh, Gen KAMADA, Tomoki KATANA, Shuhei SASAKI, Daisuke MIYAGI, and Makoto TSUDA. "Horizontal Vibration Transmission Characteristics of a Magnetic Levitation Type Seismic Isolation Model Device with Stable Levitation System." TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 55, no. 2 (March 20, 2020): 117–24. http://dx.doi.org/10.2221/jcsj.55.117.

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8

van Casteren, D. T. E. H., K. J. W. Pluk, J. J. H. Paulides, and E. A. Lomonova. "Modeling the Effects of Magnetization Variations on a Permanent Magnet Based Levitation or Vibration Isolation System." Applied Mechanics and Materials 416-417 (September 2013): 366–72. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.366.

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Анотація:

When designing a magnetic levitation system it is assumed that the magnets are ideally magnetized. In practice, however, this is not the case and deviations occur in the magnetization. In this paper two types of deviations are considered, namely a constant angular deviation and the magnetization error. Calculations show that a constant error has larger impact on the performance of a gravity compensator than the magnetization error.

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9

Dong, Weihua, Mingda Zhai, and Xiaolong Li. "Analysis and Design of Magnetic Levitation and Mechanical Spring Compound Vibration Isolation Control System." IOP Conference Series: Materials Science and Engineering 631 (November 7, 2019): 032049. http://dx.doi.org/10.1088/1757-899x/631/3/032049.

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10

Nagaya, Kosuke, Masashi Ishikawa, and Nobuyuki Fujisawa. "Actuators for a Noncontact Magnetic Levitation Table and Its Application to Vibration Isolation Control." Transactions of the Japan Society of Mechanical Engineers Series C 61, no. 584 (1995): 1381–88. http://dx.doi.org/10.1299/kikaic.61.1381.

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11

Tsuda, M., T. Kawasaki, T. Yagai, and T. Hamajima. "Dependence of Horizontal Vibration Characteristics on Load Weight Distribution in Magnetic Levitation Type Seismic Isolation Device." IEEE Transactions on Applied Superconductivity 18, no. 2 (June 2008): 832–35. http://dx.doi.org/10.1109/tasc.2008.920794.

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12

HOSOKAWA, Takeo, and Makoto KATOH. "2911 Non-linearity and Vibration Isolation Property of Repulsion Type Magnetic Levitation System Using Two Permanent Magnet." Proceedings of the JSME annual meeting 2008.5 (2008): 129–30. http://dx.doi.org/10.1299/jsmemecjo.2008.5.0_129.

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13

Tsuda, M., T. Kojima, T. Yagai, and T. Hamajima. "Vibration Characteristics in Magnetic Levitation Type Seismic Isolation Device Composed of Multiple HTS Bulks and Permanent Magnets." IEEE Transactions on Applied Superconductivity 17, no. 2 (June 2007): 2059–62. http://dx.doi.org/10.1109/tasc.2007.901502.

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14

Zhou, Yiheng, Baoquan Kou, Xiaobao Yang, Jun Luo, and He Zhang. "Research on typical topologies of a tubular horizontal-gap passive magnetic levitation vibration isolator." MATEC Web of Conferences 119 (2017): 01013. http://dx.doi.org/10.1051/matecconf/201711901013.

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15

Nagaya, Kosuke. "Analysis of a High Tc Superconducting Nonlinear Levitation System with Actuators Changing Magnetic Flux Densities and its Vibration Isolation Control." Transactions of the Japan Society of Mechanical Engineers Series C 61, no. 585 (1995): 1942–48. http://dx.doi.org/10.1299/kikaic.61.1942.

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16

Li, Zhihao, Qianqian Wu, Bilong Liu, and Zhaopei Gong. "Optimal Design of Magneto-Force-Thermal Parameters for Electromagnetic Actuators with Halbach Array." Actuators 10, no. 9 (September 9, 2021): 231. http://dx.doi.org/10.3390/act10090231.

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Анотація:

A magnetic levitation isolation system applied for the active control of micro-vibration in space requires actuators with high accuracy, linear thrust and low power consumption. The magneto-force-thermal characteristics of traditional electromagnetic actuators are not optimal, while actuators with a Halbach array can converge magnetic induction lines and enhance the unilateral magnetic field. To improve the control effect, an accurate magnetic field analytical model is required. In this paper, a magnetic field analytical model of a non-equal-size Halbach array was established based on the equivalent magnetic charge method and the field strength superposition principle. Comparisons were conducted between numerical simulations and analytical results of the proposed model. The relationship between the magnetic flux density at the air gap and the size parameters of the Halbach array was analyzed by means of a finite element calculation. The mirror image method was adopted to consider the influence of the ferromagnetic boundary on the magnetic flux density. Finally, a parametric model of the non-equal-size Halbach actuator was established, and the multi-objective optimization design was carried out using a genetic algorithm. The actuator with optimized parameters was manufactured and experiments were conducted to verify the proposed analytical model. The difference between the experimental results and the analytical results is only 5%, which verifies the correctness of the magnetic field analytical model of the non-equal-size Halbach actuator.

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17

Jang, H. K., D. Song, S. B. Kim, S. C. Han, J. P. Lee, S. J. Kim, and T. H. Sung. "Study on improving levitation stability from high frequency vibration for the application of a seismic isolation device." Physica C: Superconductivity and its Applications 471, no. 21-22 (November 2011): 1497–500. http://dx.doi.org/10.1016/j.physc.2011.05.224.

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18

Gu, Jie, Won-jong Kim, and Shobhit Verma. "Nanoscale Motion Control With a Compact Minimum-Actuator Magnetic Levitator." Journal of Dynamic Systems, Measurement, and Control 127, no. 3 (August 24, 2004): 433–42. http://dx.doi.org/10.1115/1.1978906.

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This paper presents a novel magnetically levitated (maglev) stage developed to meet the ever-increasing precise positioning requirements in nanotechnology. This magnetic levitator has 6 independent linear actuators necessary and sufficient to generate all 6-degree-of-freedom (6-DOF) motions. This minimum-actuator design concept led to a compact, 200 g lightweight moving part and the power consumption less than of a Watt, thereby reducing the thermal-expansion error drastically. The analysis and sizing of the magnetic linear actuators and the working principle of the maglev stage are presented. We designed and implemented stabilizing controllers for 6-DOF motion control with the dynamic model based on the actuator analysis. Test results showed nanoscale step responses in all six axes with 2nmrms horizontal position noise. A noise propagation model and analysis identified the capacitance sensor noise and the floor vibration as the dominant noise sources in the vertical and horizontal dynamics, respectively. A comparison of noise performances with controllers closed at 25, 65, and 90 Hz crossover frequencies illustrated how the selection of the control bandwidth should be made for nanopositioning. Experimental results including a 250μm step response, sinusoidal and square-wave trajectories, and spherical motion generation demonstrated the three-dimensional (3D) nanoscale motion-control capability of this minimum-actuator magnetic levitator. Potential applications of this maglev stage include manufacture of nanoscale structures, atomic-level manipulation, assembly and packaging of microparts, vibration isolation for delicate instruments, and seismic motion detection.

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19

Sasaki, S., K. Shimada, T. Yagai, M. Tsuda, T. Hamajima, N. Kawai, and K. Yasui. "Stationary levitation and vibration transmission characteristic in a superconducting seismic isolation device with a permanent magnet system and a copper plate." Physica C: Superconductivity and its Applications 470, no. 20 (November 2010): 1791–94. http://dx.doi.org/10.1016/j.physc.2010.05.208.

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20

Seto, Kazuto. "Special Issue on Advanced Vehicle Dynamics and, Control." Journal of Robotics and Mechatronics 7, no. 4 (August 20, 1995): 273. http://dx.doi.org/10.20965/jrm.1995.p0273.

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Анотація:

Various attempts have been made from olden days on vehicles for better riding comfort and for improved maneuverability. Past vehicles have achieved vibration isolation performance, which relaxes impact from road surfaces, by means of link mechanisms and passive suspensions consisting of springs and dampers, as well as basic motion performance such as running, turning, and stopping. However, as far as passenger cars are concerned, a passive suspension has its own limitation, and the contradiction that if riding comfort is to be improved at low speeds, the maneuverability during high-speed operations becomes bad has not been solved. Demand of users has become stronger and stronger for vehicles which satisfy riding comfort and maneuverability at the same time. Moreover, as far as trains are concerned, the past technology has increased the vibration of trains as they are operated at higher speeds; thus a drop in riding comfort has been a cause for preventing high-speed operations. Nevertheless, in line with progress in mechatronic technology, active suspensions have been adopted aggressively in automobiles and trains in recent years, and attempts have been started for improving both riding comfort and maneuverability to satisfy demand of users. Some passenger cars have already appeared which are equipped with an active suspension. A similar trend is found in the case of trains; by the introduction of active suspensions, operations of trains on conventional lines at higher speeds are being started. Under these circumstances, this special issue has been created. Although high performance in vehicles may be achieved by means of active suspensions, the problem of increased energy consumption has become a serious issue, which has been brought to the fore with the bursting of the bubble. This problem seems to be solved by saying how effectively semi-active suspensions may be realized. In this special issue, new trends have been taken up, such as vehicle dynamics, design theory on active suspension systems, reduction of engine vibration by optimum design of hydraulic engine mounts, design of control systems for neural networks of semi-active suspension systems, control of variable structures of suspension systems, predictive control, magnetic levitation suspension, etc. It is hoped that these articles will be useful in future research.

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21

Gladilin, A. V., V. A. Pirogov, I. P. Golyamina, U. V. Kulaev, P. A. Kurbatov, and E. P. Kurbatova. "Vibration converter with magnetic levitation." Acoustical Physics 61, no. 3 (May 2015): 376–82. http://dx.doi.org/10.1134/s1063771015030070.

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22

Murai, Toshiaki, Hitoshi Hasegawa, and Takayuki Kashiwagi. "Magnetic Vibration Simulator with Magnetic Levitation for EDS Maglev." IEEJ Transactions on Industry Applications 123, no. 9 (2003): 1050–56. http://dx.doi.org/10.1541/ieejias.123.1050.

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23

WATANABE, Katsuhide, Yoichi KANEMITSU, Shinji HARA, and Takahide HAGA. "Micro-Vibration Control by Active Magnetic Levitation System." Transactions of the Japan Society of Mechanical Engineers Series C 68, no. 669 (2002): 1405–13. http://dx.doi.org/10.1299/kikaic.68.1405.

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24

Endo, Ayato, Rintaro Itoyama, Jumpei Kuroda, Daigo Uchino, Kazuki Ogawa, Keigo Ikeda, Taro Kato, Takayoshi Narita, and Hideaki Kato. "Vibration Characteristics of Flexible Steel Plate on Proposed Magnetic Levitation System Using Gravity." Vibration 5, no. 4 (December 18, 2022): 936–45. http://dx.doi.org/10.3390/vibration5040054.

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Анотація:

Flexible steel plates are generally transported by rollers; however, the contact between the rollers and the steel plate degrades the surface quality of the plate. To solve this problem, noncontact transportation of steel plates using electromagnetic force has been proposed. However, ultrathin flexible steel plates can easily fall owing to deflection. A magnetic levitation system using electromagnets installed in the horizontal direction has also been proposed to improve the levitation performance of a conventional system. However, it is difficult to control vibrations with such a system because flexible steel plates are elastically deformed into complex shapes by gravity. Therefore, an electromagnetic levitation system was proposed, wherein electromagnets were installed near the edge of the steel plate such that it could be controlled with noncontact grip, such as by allowing one side of the steel plate to hang. This system is expected to improve levitation stability because the moment of inertia increases with vertical levitation and simplifies the control system. In addition, this system actively uses gravity acting on a steel plate to decrease its deflection. The use of gravity to suppress deflection is novel. In this study, the feasibility of magnetic levitation using the proposed system was investigated using magnetic field analysis. Its usefulness was investigated experimentally using a constructed magnetic levitation system. In addition, it was found that a magnetic levitation system that maintains the standing position generates a peculiar vibration.

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25

Ogawa, Kazuki, Riku Miyazaki, Yamato Uchida, Ikkei Kobayashi, Jumpei Kuroda, Daigo Uchino, Keigo Ikeda, et al. "Experimental Consideration on Suppression Effect of Elastic Vibration in Electromagnetic Levitation System for Flexible Thin Steel Plate with Curvature." Vibration 5, no. 4 (November 17, 2022): 817–28. http://dx.doi.org/10.3390/vibration5040048.

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Анотація:

Recently, research on non-contact conveyance systems using electromagnetic levitation technology has accelerated. We have constructed an electromagnetic levitation control system that keeps the relative distance between the electromagnet and steel plate constant. To investigate the levitation stability of thin steel plates, we performed magnetic levitation experiments on a thin steel plate with curvature. A physical disturbance was applied to the electromagnet units by vibrators. The electromagnet units were vibrated up and down by a vibrator. We investigated whether the bending magnetic levitation improved the levitation performance even if the magnetic levitation system was in a vibrating environment. We determined that it was possible to realize stable levitation for a steel plate under external disturbances during levitation at the optimal bending angle.

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26

Li, Jiangxiong, Jiaqiang Pan, and Qiang Hu. "Active control of vibration of a magnetic levitation platform." Journal of the Acoustical Society of America 97, no. 5 (May 1995): 3340. http://dx.doi.org/10.1121/1.412747.

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27

Nammari, Abdullah, and Hamzeh Bardaweel. "Design enhancement and non-dimensional analysis of magnetically-levitated nonlinear vibration energy harvesters." Journal of Intelligent Material Systems and Structures 28, no. 19 (March 26, 2017): 2810–22. http://dx.doi.org/10.1177/1045389x17698592.

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Анотація:

Over the past decade, there has been special interest in developing nonlinear energy harvesters capable of operating over a wideband frequency spectrum. Chief among the nonlinear energy harvesting techniques is magnetic levitation–based energy harvesting. Nonetheless, current nonlinear magnetic levitation–based energy harvesting approaches encapsulate design challenges. This work investigates some of the design issues and limitations faced by traditional magnetic levitation–based energy harvesters such as damping schemes and stiffness nonlinearities. Both experiment and model are used to quantify and evaluate damping regimes and stiffness nonlinearities present in magnetic levitation–based energy harvesters. Results show that dry friction, mostly ignored in magnetic levitation–based energy harvesting literature, contributes to the overall energy dissipation. Measured and modeled magnetic forces–displacement curves suggest that stiffness nonlinearities are weak over moderate distances. An enhanced design utilizing a combination of mechanical and magnetic springs is introduced to overcome some of these limitations. A non-dimensional model of the proposed design is developed and used to investigate the enhanced architecture. The unique potential energy profile suggests that the proposed nonlinear energy harvester outperforms the linear version by steepening the displacement response and shifting the resonance frequency, resulting in a larger bandwidth for which power can be harvested.

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28

OKADA, Yohji. "Active Vibration and Noise Control. Vibration Control of Magnetic Levitation and Flexible Rotor Magnetic Bearing System." Journal of the Japan Society for Precision Engineering 64, no. 5 (1998): 664–68. http://dx.doi.org/10.2493/jjspe.64.664.

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29

Iwashita, Satoshi, and Susumu Torii. "Proposal of Method of Variable Vibration Frequency Using Magnetic Levitation." IEEJ Transactions on Industry Applications 135, no. 5 (2015): 475–80. http://dx.doi.org/10.1541/ieejias.135.475.

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30

Savage, Neil. "Vibration isolation." Nature Photonics 2, no. 2 (February 2008): 118–19. http://dx.doi.org/10.1038/nphoton.2007.295.

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31

Yu, Ji, Qiang Wu, Su Yang Ma, Chen Quan Zhou, Dan Shen, and Ping Liao. "Dynamic Characteristics Analysis of the Magnetic Levitation Cylindrical Linear Motion Guide." Applied Mechanics and Materials 490-491 (January 2014): 336–41. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.336.

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The principle of the magnetic levitation cylindrical linear motion guide and the theory of vibration analysis were introduced. By finite element analysis software ANSYS, modal analysis for guide was made to get the natural frequencies and vibration modes, the harmonic response analysis was also made to get the displacement response by the cutting force on the basis of modal analysis, and the influence of displacement on electromagnetic force was analysised.

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32

Firoozy, Peyman, and Salman Ebrahimi-Nejad. "Broadband energy harvesting from time-delayed nonlinear oscillations of magnetic levitation." Journal of Intelligent Material Systems and Structures 31, no. 5 (January 10, 2020): 737–55. http://dx.doi.org/10.1177/1045389x19898751.

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Анотація:

This article investigates quasiperiodic energy harvesting in a nonlinear vibration-based harvester, consisting of delayed nonlinear vibrations from magnetic levitation subjected to harmonic base acceleration, in which time-delay is introduced. For energy harvesting, a coil made up of seven layers of 36 gauges wound around the outer casing is utilized. The first- and second-order perturbation approximations are used to obtain the frequency responses of the power and vibration amplitudes in the vicinity of primary resonance. Numerical results are presented to verify the correctness of the analytical solutions. The results show that there is a good agreement between the second approximation and the numerical method; thus, we used the second-order perturbation to present the results. The impact of several parameters on the power and vibration amplitudes in the absence and presence of delay is studied. It was observed that using the nonlinear vibrations due to magnetic levitation in the absence and presence of the delay enables energy harvesting over broadband frequencies distant from primary resonance, which benefits preventing the instability and hysteresis regions near resonance. Dynamic behaviors of the motion are shown in the form of time histories and phase portraits. The results indicate periodic and quasiperiodic motions for the different values of the delay parameters. Also, the effects of the separation distance between magnets [Formula: see text], without and with time-delay, on the vibration and power amplitudes were examined. It was observed that the [Formula: see text], for both points chosen from stable periodic solution and unstable periodic solution, has a significant influence on the system behavior. Thus, choosing proper values for these parameters enables the device to extract more power in lower and broadband excitation frequencies. Besides, we illustrate that for specific values of [Formula: see text] and delay time parameters, the maximum system power output is not necessarily accompanied by maximum vibration amplitude.

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33

Wang, Zu Yao. "A Nonlinear Piezoelectric Energy Harvester from the Vibration of Magnetic Levitation." Advanced Materials Research 860-863 (December 2013): 594–98. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.594.

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Анотація:

Vibration-based energy harvester has been widely investigated during the past years. In .order to improve the power-generating ability and enlarge the frequency range of energy harvesters, this paper presents the design and analysis of a new magneto electric energy harvester that uses Terfenol-D/PZT/Terfenol-D laminate to harvest energy from nonlinear vibrations created by magnetic levitation. The mathematical model of the proposed harvester is derived and used in a parametric study. By multi-scale analysis, the frequency-response analysis of the system is obtained and discussed here. It is shown that the systems nonlinearity can broaden the harvesters working bandwidth, thus makes the harvester suitable to work in practical cases.

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34

NAKADAI, Shigeyuki, and Masafumi MORITA. "504 Self-Powered Active Vibration Control for Repulsive Magnetic Levitation System." Proceedings of the Dynamics & Design Conference 2006 (2006): _504–1_—_504–4_. http://dx.doi.org/10.1299/jsmedmc.2006._504-1_.

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35

NAKADAI, Shigeyuki, and Yuchiroh HORI. "Active Vibration Control for Repulsive Magnetic Levitation System using Regenerated Energy." Proceedings of Conference of Kanto Branch 2002.8 (2002): 225–26. http://dx.doi.org/10.1299/jsmekanto.2002.8.225.

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36

Teng, Yan-feng, Nian-guan Teng, and Xin-jian Kou. "Vibration analysis of continuous maglev guideway considering the magnetic levitation system." Journal of Shanghai Jiaotong University (Science) 13, no. 2 (April 2008): 211–15. http://dx.doi.org/10.1007/s12204-008-0211-8.

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37

INOUE, Tsuyoshi, Jun LIU, and Yukio ISHIDA. "Vibration Control on the Magnetic Levitation System by Using Disturbance Observer." Proceedings of Conference of Tokai Branch 2003.52 (2003): 119–20. http://dx.doi.org/10.1299/jsmetokai.2003.52.119.

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38

Tan, Xinyu, Meng Ma, and Rongning Cao. "Measuring Vibration and Noise from a Magnetic Levitation Central Air-Conditioner." Journal of Testing and Evaluation 48, no. 6 (May 3, 2019): 20180592. http://dx.doi.org/10.1520/jte20180592.

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39

Nagaya, K. "Analysis of a high T/sub c/ superconducting levitation system with vibration isolation control." IEEE Transactions on Magnetics 32, no. 2 (March 1996): 445–52. http://dx.doi.org/10.1109/20.486531.

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40

Zhang, Xing-Yi, Jun Zhou, and You-He Zhou. "Influencing Factors of Levitation Drift Caused by Magnet Vibration." Journal of Superconductivity and Novel Magnetism 22, no. 8 (July 21, 2009): 855–59. http://dx.doi.org/10.1007/s10948-009-0511-8.

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41

Kuruma, Yusuke, Akio Yamamoto, and Toshiro Higuchi. "High Speed Non-Contact Object Handling Using Magnetic Levitation and Tilt Control." Applied Mechanics and Materials 162 (March 2012): 471–76. http://dx.doi.org/10.4028/www.scientific.net/amm.162.471.

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Анотація:

This paper describes high speed non-contact object handling with one degree-of-freedom magnetic levitation. Feed-forward tilt control using an industrial robot realizes large acceleration and tilt angle. Experimental results demonstrate the transportation with the maximum acceleration of 7.31 m/s2 and maximum tilt angle of 36o. This acceleration is seven times higher than the previously performed experiments. Tracking error associated with high speed motion causes lateral vibration of the object. This paper also introduces iterative learning control (ILC) to improve trajectory tracking. Experimental results show that ILC reduces the tracking error; nevertheless the lateral vibration still remains.

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42

Fujita, Kentaro, and Toshihiko Sugiura. "Characterization of LCR Parallel-Type Electromagnetic Shunt Damper for Superconducting Magnetic Levitation." Actuators 11, no. 8 (August 2, 2022): 216. http://dx.doi.org/10.3390/act11080216.

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Анотація:

This study investigated the effect of electromagnetic shunt dampers on the resonance amplitude reduction in a superconducting magnetic levitation system. There are two types of electromagnetic shunt dampers, series type and parallel type, depending on the configuration of the electric circuit, and their damping characteristics may differ depending on the external resistance value in the circuit. In this study, after discussing the vibration-suppression effects of both types according to the governing equations, vibration experiments were conducted using both dampers with different resistance values. As a result, it was confirmed that, for the larger resistance value, the amplitude reduction effect is smaller in the series-type damper, while it remained high in the parallel type. We also performed numerical integrations, including the nonlinearity of magnetic force in the superconducting magnetic levitation system. As a result, it was numerically confirmed that the parallel-type damper can also be expected to reduce amplitude at a resonance caused by nonlinearity.

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43

OGAWA, Kazuki, Riku MIYAZAKI, Kohmei FUNADA, Keigo IKEDA, Daigo UCHINO, Taro KATO, Ayato ENDO, Takayoshi NARITA, and Hideaki KATO. "A Study on Levitation Mechanism of Bending Magnetic Levitation System: Fundamental Consideration on Dynamic Analysis of Vibration Characteristics." IFAC-PapersOnLine 55, no. 27 (2022): 329–34. http://dx.doi.org/10.1016/j.ifacol.2022.10.534.

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44

Taguchi, Daisuke, Ryunosuke Sakaguchi, and Toshihiko Sugiura. "Vibration Reduction of a High-$T_{c}$ Superconducting Magnetic Levitation System With an Autoparametric Vibration Absorber." IEEE Transactions on Applied Superconductivity 21, no. 3 (June 2011): 1538–42. http://dx.doi.org/10.1109/tasc.2010.2091246.

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45

Sase, Masanori, and Susumu Torii. "Magnetic levitation control with real-time vibration analysis using finite element method." International Journal of Applied Electromagnetics and Mechanics 13, no. 1-4 (December 17, 2002): 129–36. http://dx.doi.org/10.3233/jae-2002-486.

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46

Hayashiya, Hitoshi, Noboru Araki, Jonathan E. Paddison, Hiroyuki Ohsaki, and Eisuke Masada. "Magnetic Levitation System of a Flexible Steel Plate with Vibration Suppressing Electromagnets." IEEJ Transactions on Industry Applications 117, no. 2 (1997): 238–44. http://dx.doi.org/10.1541/ieejias.117.238.

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47

Zhu, Yang, and Jean W. Zu. "A Magnetoelectric Generator for Energy Harvesting From the Vibration of Magnetic Levitation." IEEE Transactions on Magnetics 48, no. 11 (November 2012): 3344–47. http://dx.doi.org/10.1109/tmag.2012.2199289.

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48

Ai, Liwang, Guomin Zhang, Wanjie Li, Guole Liu, Qingquan Qiu, and Naihao Song. "Axial Vibration Characteristic of Levitation Force for Radial-Type Superconducting Magnetic Bearing." IEEE Transactions on Applied Superconductivity 30, no. 3 (April 2020): 1–7. http://dx.doi.org/10.1109/tasc.2019.2932672.

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49

Hayashiya, H., N. Araki, J. E. Paddison, H. Ohsaki, and E. Masada. "Magnetic levitation of a flexible steel plate with a vibration suppressing magnet." IEEE Transactions on Magnetics 32, no. 5 (1996): 5052–54. http://dx.doi.org/10.1109/20.539487.

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50

JIANG, Changan, and Satoshi UENO. "Study on vibration control system of structures based on magnetic levitation technology." Mechanical Engineering Journal 7, no. 1 (2020): 19–00307. http://dx.doi.org/10.1299/mej.19-00307.

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