Laboratory testing of the pulse power system for the cannon caliber electromagnetic gun system (CCEMG)

Kitzmiller, J.R.; Pratap, S.B.; Werst, M.D.; Penney, C.E.; Hotz, T.J.; Murphy, Brian T.

doi:10.1109/20.560053

Cited by 26 publications

(8 citation statements)

References 5 publications

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“…20 If we assume a constant value of λ i > 0 and plot the real and imaginary parts of one resonant term from Eq. (12), 1 λ n −λ , as a function of the real parameter λ r , we trivially obtain…”

Section: Magnetostatic Surface Resonances In Bodies With Negativementioning

confidence: 99%

“…Magnetostatic fields in the absence of electric currents can be described by the magnetostatic potential φ (m) , which satisfies the equation ∇μ∇φ (m) = 0, mathematically identical to the Laplace equation of electrostatics, (1). This analogy is a particular case of EM duality, which can be stated as the exact equivalence of electric-and magnetic-field equations in the absence of free electric (and magnetic) charges.…”

Section: Introductionmentioning

confidence: 99%

“…Electromagnetic (EM) forces are used in a variety of technologies, ranging from motors, EM guns, 1 and magnetic levitation trains 2 to micro-and nanoactuators 3 and optical tweezers. 4,5 The spatial scales where EM forces are important to mankind range from atomic to cosmic, 6 and the relevant EM frequencies cover the entire spectrum from statics to γ -ray frequencies.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic levitation of metamaterial bodies enhanced with magnetostatic surface resonances

et al. 2012

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We propose that macroscopic objects built from negative-permeability metamaterials may experience resonantly enhanced magnetic force in low-frequency magnetic fields. Resonant enhancement of the timeaveraged force originates from magnetostatic surface resonances (MSRs), which are analogous to the electrostatic resonances of negative-permittivity particles, well known as surface plasmon resonances in optics. We generalize the classical problem of the MSR of a homogeneous object to include anisotropic metamaterials and consider the most extreme case of anisotropy, where the permeability is negative in one direction but positive in the others. It is shown that deeply subwavelength objects made of such indefinite (hyperbolic) media exhibit a pronounced magnetic dipole resonance that couples strongly to uniform or weakly inhomogeneous magnetic field and provides strong enhancement of the magnetic force, enabling applications such as enhanced magnetic levitation.

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Section: Magnetostatic Surface Resonances In Bodies With Negativementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Magnetic levitation of metamaterial bodies enhanced with magnetostatic surface resonances

et al. 2012

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“…This initial system, however, weighed nearly 12,000 kg and thus was still far from being adaptable to modern armored systems. The first air-core CPA (small caliber [2] and Task-C [3] systems) used advanced composite materials and incorporated self-excitation to increase power density. The small caliber system was built to Manuscript received December 21, 1999.…”

Section: Introductionmentioning

confidence: 99%

Single and multiphase compulsator system architectures: a practical comparison

Kitzmiller¹,

Pappas²,

Pratap³

2001

IEEE Trans. Magn.

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Abstract--The Center for Electromechanics at the University of Texas at Austin (UT-CEM) has designed, built, and tested three generations of iron-core and air-core compensated pulsed alternators (CPA). These include the iron core, small caliber, cannon caliber, and model scale compulsators. Early CPA were single-phase machines that were optimized for a specific load and desired performance. The most recent machine, the modelscale CPA, is a multiphase alternator coupled to the load through a rectifier. This paper includes a discussion of the requirements and capabilities of both single-phase and multiphase systems, a point design for each system type, and a comparison of system performance in driving a cannon caliber launcher.

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“…INTRODUCTION s a power source for electric guns, pulsed alternators (or compulsators, referred to as CPA) have been under development for many years [1,2,3,4,5,6], with a wide range of configurations including: rotating armature, rotating field, iron-core, air-core, externally excited, and self-excited.…”

mentioning

confidence: 99%

Predicted versus actual performance of the model scale compulsator system

Kitzmiller¹,

Cook²,

Hahne³

et al. 2001

IEEE Trans. Magn.

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Abstract--Performance testing of the model-scale CPA was recently completed at the University of Texas Center for Electromechanics. A major part of the project was the development of design and simulation codes that would accurately represent the performance of pulsed alternators. This paper discusses the components of the system and its operational sequence. Details of the performance simulation model are presented along with test data. The test result is compared to the predicted data.

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Laboratory testing of the pulse power system for the cannon caliber electromagnetic gun system (CCEMG)

Cited by 26 publications

References 5 publications

Magnetic levitation of metamaterial bodies enhanced with magnetostatic surface resonances

Magnetic levitation of metamaterial bodies enhanced with magnetostatic surface resonances

Single and multiphase compulsator system architectures: a practical comparison

Predicted versus actual performance of the model scale compulsator system

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