FORM FUNCTIONS FOR DUAL COMPOSITION INCREMENTS OF PROPELLANT GRAINS
Abstract
It is demonstrated mathematically that any desired form function can be approached by the burning of increments or groups of dual composition propellent grains of neutral geometry (constant surface during burning). This scheduled burning is achieved by varying the thickness of each of the outer layers of propellant, with the outer layers having the lower burning rate. It is shown hat the pertinent parameters are the total burning disance of the propellant system, the burning distances of grains in each increment of propellant, the number of groups or increments, the mass of each group, and the number of groups which are burning simultaneously. The relationship of these parameters to the desired form function is expressed as a serie of equations, each of which is an incremental form function. The sum of the series approaches, to any desired degree of accuracy, the specified form function.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1963
- Accession Number
- AD0424739
Entities
People
- J. F. Kowalick
- M. S. Silverstein
Organizations
- Frankford Arsenal