Analysis of the influence of axial mass eccentricity on polar axis offset characteristics in superconducting rotors of magnetic levitation system

IF 1 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-10-10 DOI:10.1016/j.physc.2025.1354790

Quansheng Sun , Chunyan Cui , Xinning Hu , Xian Yi , Yuan Zhang , Feifei Niu , Qiuliang Wang

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引用次数: 0

Abstract

The superconducting rotor magnetic levitation system has great potential in high-precision angular velocity sensing, but its accuracy and stability are limited by the coupling of multiple physical fields. To address the unresolved synergistic interaction between axial mass eccentricity and aspheric factors, this study systematically quantifies how material heterogeneity affects axial mass eccentricity. On this basis, a multi-field coupling dynamic model of superconducting rotor is established, and the dynamic characteristics of polar axis offset under the single action of axial mass eccentricity and its synergistic effect with aspheric factors such as centrifugal deformation are deeply analyzed, and quantitatively characterizes the nonlinear increase in drift velocity arising from their coupling. The results show that axial mass eccentricity is the core interference source of polar axis drift. The proposed quantitative models of material-induced eccentricity and its coupling with deformation offer a new theoretical foundation for drift prediction, compensation control, and structural optimization of high-precision superconducting rotors.

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磁悬浮系统超导转子轴向质量偏心对极轴偏置特性的影响分析

超导转子磁悬浮系统在高精度角速度传感方面具有很大的潜力，但其精度和稳定性受到多个物理场耦合的限制。为了解决轴向质量偏心和非球面因素之间尚未解决的协同相互作用，本研究系统地量化了材料非均质性如何影响轴向质量偏心。在此基础上，建立了超导转子多场耦合动力学模型，深入分析了轴向质量偏心单作用下极轴偏置的动态特性及其与离心变形等非球面因素的协同效应，定量表征了二者耦合引起的漂移速度的非线性增加。结果表明，轴向质量偏心是极轴漂移的核心干扰源。提出的材料偏心量及其与变形耦合的定量模型为高精度超导转子漂移预测、补偿控制和结构优化提供了新的理论基础。

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来源期刊

Physica C-superconductivity and Its Applications 物理-物理：应用

CiteScore

2.70

自引率

11.80%

发文量

102

审稿时长

66 days

期刊介绍： Physica C (Superconductivity and its Applications) publishes peer-reviewed papers on novel developments in the field of superconductivity. Topics include discovery of new superconducting materials and elucidation of their mechanisms, physics of vortex matter, enhancement of critical properties of superconductors, identification of novel properties and processing methods that improve their performance and promote new routes to applications of superconductivity. The main goal of the journal is to publish: 1. Papers that substantially increase the understanding of the fundamental aspects and mechanisms of superconductivity and vortex matter through theoretical and experimental methods. 2. Papers that report on novel physical properties and processing of materials that substantially enhance their critical performance. 3. Papers that promote new or improved routes to applications of superconductivity and/or superconducting materials, and proof-of-concept novel proto-type superconducting devices. The editors of the journal will select papers that are well written and based on thorough research that provide truly novel insights.