Status of the Holloman High Speed Maglev Test Track (HHSMTT)

Gurol, H.; Ketchen, D.; Holland, L. D.; Hooser, Mike; Minto, David; Bosmajian, Neil; Cummings, Russell M.

doi:10.2514/6.2014-2655

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…The exciting components could be permanent magnet (PM) or superconducting magnet (SCM) and the reaction components could be metal plate or short circuit coils. The typical engineering applications are Magplane using PM and metal plate (Montgomery, 2004 and Shirakuni, 2006), Holloman high speed test track maglev using SCM and metal plate (Gurol et al , 2014 and Hsu et al , 2008), Japanese Yamanashi superconducting maglev test line using SCM and short circuit coil (Sawada, 2009 and Kuwano et al , 2007). Moreover, there are several fundamental researches, such as Jeroen de Boeij proposed a model which could describe the five-degrees-of-freedom dynamics of a passively levitated electrodynamic maglev system using PMs and short circuit coils (de Boeij et al , 2005), Hungje Cho studied the basic characteristics of the EDS system with SCMs moving on the PM Halbach Array Magnets by experimental and numerical methods (Cho et al , 2008), Yin Chen presented the derivation of a 3-D analytical solution of a null-flux EDS device for a metal plate (Chen et al , 2015), L. Hao investigated the force performance of the EDS with SCM and metal plated using a 3-D numerical model (Hao et al , 2019) and so on.…”

Section: Introductionmentioning

confidence: 99%

Study on the characteristics of superconducting electrodynamic suspension system based on dynamic circuit theory

Zhai

2020

COMPEL

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Purpose The purpose of this paper is to analyze the influence of different parameters on the characteristics of the superconducting electrodynamic suspension (EDS) system. Design/methodology/approach The authors used an analytical model based on the dynamic circuit theory to perform the analysis. The authors proposed an inductance criterion to improve the calculation accuracy. They also proposed a three-dimension finite element method (FEM) to verify the validity of the analytical model. Findings The levitation force and guiding force increase with the superconducting magnet (SCM) speed and show a saturated trend, while the drag force decreases with the SCM speed. The vibration characteristic is the inherent characteristic of the superconducting EDS. The frequency and amplitude are affected by the gap between adjacent null-flux coils. The levitation force first increases and subsequently decreases with the levitation height. The total levitation force of the SCM increases with the superconducting coil (SC) number, while the average levitation force of an SC decreases with the SC number. The total levitation force nonlinearly increases with the SC number. Originality/value The authors introduced an inductance criterion for better understanding and using the analytical model, and they also proposed a 3D FEM method. The 3D FEM method could be extended to simulate the other EDS systems with more complex structures which the numerical model is no longer applicable. The results of the parameter study could deepen people’s understanding of EDS.

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Section: Introductionmentioning

confidence: 99%

Study on the characteristics of superconducting electrodynamic suspension system based on dynamic circuit theory

Zhai

2020

COMPEL

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Numerical simulation of fairing separation test for hypersonic air breathing vehicle

Raj

Anandhanarayanan

Krishnamurthy

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part G:

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Fairings are provided to cover hypersonic air breathing vehicle to protect it from adverse aerodynamic loading and kinetic heating. Separation dynamics of fairings is an important event in the launch of vehicle. Extensive computational fluid dynamics simulations are carried out for the design of fairings and vehicle and selection of time sequences of various separation events. A ground test of fairing separation is conducted in the sled facility to check the structural integrity and functionality of various separation mechanisms and flight hardware. Simulations have been carried out to study the separation dynamics of fairings at test conditions using grid-free Euler solver to get the aerodynamic loads and the loads are integrated to get the trajectory of fairings. The aerodynamic loads are provided to verify the structural integrity of various components and the trajectory of panels is used in the test planning. The pressure distributions on the vehicle are compared with the test results.

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Latest Development of Superconducting Maglev

Zhou,

Liu,

Zhang

et al. 2024

Superconductivity - Physics and Devices [Working Title]

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The suggested chapter will present the latest developments of the superconducting maglev in the world (especially in China). The chapter firstly introduces the classification of suspension, for example, the developments of electro-magnetic suspension (EMS), electro-dynamic suspension (EDS), and magnetic flux pinning suspension. Secondly, we explain the concept and principle of EMS, EDS, and so on. Thirdly, we give the introduction to the latest developments of the maglev in the world, such as China, Japan, the US, and so on. In particular, the chapter will give more details about the superconducting EDS developments in China. Finally, the chapter will present the key technologies and research prospect of the superconducting magnet of the EDS.

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Status of the Holloman High Speed Maglev Test Track (HHSMTT)

Cited by 3 publications

References 2 publications

Study on the characteristics of superconducting electrodynamic suspension system based on dynamic circuit theory

Study on the characteristics of superconducting electrodynamic suspension system based on dynamic circuit theory

Numerical simulation of fairing separation test for hypersonic air breathing vehicle

Latest Development of Superconducting Maglev

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