Experiments with and Modelling of Explosively Driven Magnetic Flux Compression Generators
Author: Patrik Appelgren
Publisher:
Published: 2008
Total Pages: 103
ISBN-13: 9789174151749
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Explosively Driven Pulsed Power
Author: Andreas Neuber
Publisher: Springer Science & Business Media
Published: 2005-07-22
Total Pages: 300
ISBN-13: 9783540260516
DOWNLOAD EBOOKWhile the basic operating principles of Helical Magnetic Flux Compression Generators are easy to understand, the details of their construction and performance limits have been described only in government reports, many of them classified. Conferences in the field of flux compression are also dominated by contributions from government (US and foreign) laboratories. And the government-sponsored research has usually been concerned with very large generators with explosive charges that require elaborate facilities and safety arrangements. This book emphasizes research into small generators (less than 500 grams of high explosives) and explains in detail the physical fundamentals, construction details, and parameter-variation effects related to them.
Modeling and Design of Magnetic Flux Compression Generators
Author: Nicholas Edward Klugman
Publisher:
Published: 2020
Total Pages: 111
ISBN-13:
DOWNLOAD EBOOKThe explosively-pumped magnetic flux compression generator (FCG) is a pulsed-power current amplifier powered by an explosion. This thesis surveys FCGs, demonstrating their general operation; develops a new magnetic-field-strength-based model for FCGs in the form of a generalized cylinder that more accurately captures losses to magnetic diffusion than commonly employed circuit models, but maintains simplicity in the form of a low order DAE; develops a simplified means of calculating the inductance of FCGs, providing a bridge between the field-based and circuit models; presents a design of a full loop FCG system (a topology underserved by existing literature) and an experimental setup to verify the designed loop generator; and proposes a class of non-explosive magnetic flux compression generators. The designs and models herein provide new tools and jumping-off points for further research into FCGs, particularly in the miniaturized systems gaining popularity and in the potential for reusable flux compression power sources.
Design, Testing and Modeling of a High-gain Magnetic Flux-compression Generator
Author:
Publisher:
Published: 1986
Total Pages:
ISBN-13:
DOWNLOAD EBOOKUsing a simultaneously initiated cylindrical explosive, a coaxial magnetic flux-compression generator (FCG) was designed to test high-current-gain limitations. A coaxial design with a lossless gain of approx. 100:1 was chosen for its efficiency, relative simplicity, and calculability. Theoretical design included modeling as well as 1-D and 2-D hydrodynamic and MHD calculations. A 69.3-cm cylinder of PBX-9501 high explosive, 20.3 cm in diameter, was used to drive the Al armature into a Cu stator. The initial current supplied by a capacitor bank was approx. 3 MA which produced a final current approx. 75 MA. Details of the experiment and a comparison with calculations are presented.
Explosively Driven Pulsed Power
Author: Andreas A. Neuber
Publisher: Springer
Published: 2009-09-02
Total Pages: 280
ISBN-13: 9783540811084
DOWNLOAD EBOOKWhile the basic operating principles of Helical Magnetic Flux Compression Generators are easy to understand, the details of their construction and performance limits have been described only in government reports, many of them classified. Conferences in the field of flux compression are also dominated by contributions from government (US and foreign) laboratories. And the government-sponsored research has usually been concerned with very large generators with explosive charges that require elaborate facilities and safety arrangements. This book emphasizes research into small generators (less than 500 grams of high explosives) and explains in detail the physical fundamentals, construction details, and parameter-variation effects related to them.
Computer Modeling and Experimental Validation of Losses in a Strip Geometry Explosive Magnetic Flux Compression Generator
Author:
Publisher:
Published: 1983
Total Pages: 125
ISBN-13:
DOWNLOAD EBOOKA computer program to predict the performance of a strip geometry explosive magnetic flux compression generator (MCG) was developed and validated. The program contains five separate models of the MCG, two theoretical and three empirically based. The first model is a theoretical lossless flux conserved model. The second model accounts for resistive losses due to plate resistance and a flux diffusion equivalent resistance. The first empirical model models the remaining losses as a slipping loss. The second empirical model adjusts the flux conserved model with an additional time varying inductance. The final empirical model is a simple flux trapping efficiency model. Actual MCG experiments were conducted using the Air Force Weapons Laboratory's strip MCG. The data from these experiments was used to validate the computer program. Input currents varied from 294.0 KA to 1100.0 KA with resulting output currents of 2210.0 KA to 10261.0 KA and current amplification factors between 6.29 and 15.75. (Author).
Explosively Driven Pulsed Power
Author: Andreas A. Neuber
Publisher: Springer Science & Business Media
Published: 2005-11-04
Total Pages: 282
ISBN-13: 354028673X
DOWNLOAD EBOOKWhile the basic operating principles of Helical Magnetic Flux Compression Generators are easy to understand, the details of their construction and performance limits have been described only in government reports, many of them classified. Conferences in the field of flux compression are also dominated by contributions from government (US and foreign) laboratories. And the government-sponsored research has usually been concerned with very large generators with explosive charges that require elaborate facilities and safety arrangements. This book emphasizes research into small generators (less than 500 grams of high explosives) and explains in detail the physical fundamentals, construction details, and parameter-variation effects related to them.
Computer Modeling and Experimental Validation of Losses in a Strip Geometry Explosive Magnetic Flux Compression Generator
Author: Mary P. Jeffrey (1LT, USAF.)
Publisher:
Published: 1983
Total Pages: 226
ISBN-13:
DOWNLOAD EBOOKMagnetocumulative Generators
Author: Larry L. Altgilbers
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 430
ISBN-13: 1461212324
DOWNLOAD EBOOKA discussion of explosive pulsed power systems and their applications, this book consists of 7 chapters. The first five describe the basic physics of these sources and their ancillary equipment, based on a manual for training engineers in Russia. Chapter 6 is a description of codes and methodologies used at Loughborough University in the UK to build flux compressors, while Chapter 7 covers two specific applications: high power lasers and high power microwave sources. The book introduces all types of explosive power sources and their ancillary equipment, the procedures required to build them, and specific applications.
Survey of Recent Work on Explosive-driven Magnetic Flux Compression Generators
Author:
Publisher:
Published: 1978
Total Pages:
ISBN-13:
DOWNLOAD EBOOKThere are five widely-used classes of explosive-driven flux compression generators. They are the spiral, coaxial, strip, plate and cylindrical implosion systems. The configurations are described and the characteristics of the various types are compared. There are a number of techniques for sharpening or impedance-matching the output pulse of the generators. The use of switching, fuses and transformers are discussed. Some of the areas of application of the generators are outlined briefly. Much of the recent work at Los Alamos has been directed toward the development of the plate generator. This type consists essentially of a transmission line with explosive slabs on the flat surfaces. These plates may be parallel or at an angle with respect to each other. A plane detonation front in the explosive allows a large area of conductor to be driven simultaneously. As a result, the power and current outputs are very high - many megamperes at the terawatt level. This generator is particularly well suited to driving low impedance plasma devices. The results of the plate generator tests are discussed.
