Electromagnetic and Mechanical Characteristics Analysis of a Flat-Type Vertical-Gap Passive Magnetic Levitation Vibration Isolator

Kou, Baoquan; Zhou, Yiheng; Yang, Xiaobao; Feng, Xiaoyun; Zhang, He

doi:10.1155/2016/5327207

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…[8]. Kou proposed a flat-type vertical-gap passive magnetic levitation vibration isolator (FVPMLVI) for an active vibration isolation system [9]. However, the author did not analyze the effect of the yoke portion on the magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of Magneto-Force-Thermal Parameters for Electromagnetic Actuators with Halbach Array

Liu

et al. 2021

Actuators

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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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Section: Introductionmentioning

confidence: 99%

Optimal Design of Magneto-Force-Thermal Parameters for Electromagnetic Actuators with Halbach Array

Liu

et al. 2021

Actuators

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On-Chip Drug Screening Technologies for Nanopharmaceutical and Nanomedicine Applications

Onbas

Bilginer

Yıldız

2020

Nanopharmaceuticals: Principles and Applications Vol. 1

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Advancements in Key Technologies for Vibration Isolators Utilizing Electromagnetic Levitation

Lou,

Zhang,

Zhang

et al. 2024

Energies

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With the advancement of manufacturing, the precision requirements for various high-precision processing equipment and instruments have further increased. Due to its noncontact nature, simple structure, and controllable performance, electromagnetic levitation has broad application prospects in ultra-precision instruments and ground testing of aerospace equipment. Research on vibration isolation technology using electromagnetic levitation is imperative. This paper reviews the latest research achievements of three types of passive isolators and five active isolation actuators. It also summarizes the current research status of analytical methods for passive isolators and the impact of isolator layout. This study explores current isolators’ achievements, such as the development of passive isolators that generate negative stiffness and require mechanical springs for uniaxial translational vibrations, single-function actuators, and control systems focused on position and motion vibration control. Based on the current isolators’ characteristics, this review highlights future developments, including focusing on passive isolators for heavy loads and multi-axis isolation, addressing complex vibrations, including rotational ones, and developing methods to calculate forces and torques for arbitrary six-DOF movements while improving speed. Additionally, it emphasizes the importance of multifunctional actuators to simplify system structures and comprehensive control systems that consider more environmental factors. This provides significant reference value for vibration isolation technology using electromagnetic levitation.

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Electromagnetic and Mechanical Characteristics Analysis of a Flat-Type Vertical-Gap Passive Magnetic Levitation Vibration Isolator

Cited by 4 publications

References 16 publications

Optimal Design of Magneto-Force-Thermal Parameters for Electromagnetic Actuators with Halbach Array

Optimal Design of Magneto-Force-Thermal Parameters for Electromagnetic Actuators with Halbach Array

On-Chip Drug Screening Technologies for Nanopharmaceutical and Nanomedicine Applications

Advancements in Key Technologies for Vibration Isolators Utilizing Electromagnetic Levitation

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