强冲击载荷下涡流制动器制动力特性及多目标优化

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Shimin Liang, Guolai Yang, A. Al-Zahrani, Lei Li
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引用次数: 0

摘要

哈尔巴赫阵列作为涡流制动器中的一种新型永磁体布置形式,因其优异的磁场利用率而逐渐受到人们的关注。然而,由于缺乏准确的理论模型,在欧洲央行的设计阶段造成了巨大的困扰。为了解决这个问题,本文建立了子域模型,可以直观地观察结构参数和材料参数对磁场和涡流制动力的影响。通过有限元方法验证了分析模型的准确性。计算结果表明,当主次相对速度达到临界速度值时,涡流制动力最大。引入后坐力运动方程,分析了在强冲击载荷作用下制动力的变化规律。搭建了小型原型冲击试验平台,分析了冲击载荷作用下ECB制动特性的变化。为了降低ECB的权重,对ECB参数进行了多目标优化。在满足后坐力要求的同时,欧洲央行的重要结构质量减少了19.44%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Braking force characteristics and multi-objective optimization of eddy current brake under intensive impact load
As a new type of permanent magnet arrangement in the eddy current brake (ECB), the Halbach array is gradually gaining attention thanks to its excellent magnetic field utilization. However, the absence of an accurate theoretical model causes great distress in the design phase of the ECB. To tackle this, this article establishes a subdomain model that can intuitively observe the influence of structural and material parameters on the magnetic field and eddy current braking force. The accuracy of the analytical model is verified by the finite element method (FEM). The calculation results show that the eddy current braking force is the largest when the relative velocity of the primary and secondary reaches the critical velocity value. The recoil equation of motion is introduced to analyze the change law of the braking force under intensive impact load. A small prototype impact test platform was set up to analyze the change of braking characteristics of the ECB under the impact load. To reduce the weight of the ECB, the multi-objective optimization of the ECB parameters is carried out. The vital structural mass of the ECB is reduced by 19.44% while meeting the recoil requirements.
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
100
审稿时长
4.6 months
期刊介绍: The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.
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