THE THEORY AND CAPABILITIES OF MAGNETICALLY DRIVEN FLYERS
Abstract
The basic theory governing the behavior of magnetically driven flyer plates is derived and discussed. Analytical tools capable of predicting the non- linear response of flyer plate systems are described and one such tool is utilized to predict the behavior of a typical capacitor bank-magnetically driven flyer plate facility. Practical applications and achievements, including instrumentation and bank diagnostics, of operating systems are described. Consideration is given to uncertainties arising from a lack of definition of the cushioning (air or magnetic) between the sample and flyer, the thermodynamic condition of the flyer at impact, and the degree of buckling of a curved flyer at impact with a curved test specimen. Particular attention is given to the high impulse capability of magnetically driven flyer plates. Theoretical predictions of the temperature rise in various materials due to I2R heating are presented along with hydrodynamic calculations of the pressure-time history resulting from magnetically driven flyer plate impacts on tape wound nylon phenolic. Included in the summary is a discussion of the need for magnetically driven flyer plate loadings of structural items.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1970
- Accession Number
- AD0708449
Entities
People
- David C. Williams
- Thomas F. V. Meagher