A study of the burning rates of composite solid propellants in acceleration fields.
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Authors
Sturm, Edward John
Subjects
Advisors
Reichenbach, R.E.
Date of Issue
1968-03
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The average burning rates of a series of composite solid propellants
were measured in acceleration fields up to 1000 G using a combustion
bomb mounted on a centrifuge. The propellants were burned at constant
pressures of 500, 1000, and 1500 psia. Specially prepared motors
allowed the study of the effect of simultaneous erosive and acceleration
induced burning rate increases. The burning rates of both the non-metallized and the majority of the
metallized propellants were found to depend on acceleration. The effect
of acceleration was found to depend on the basic burning rates of the propellants
and the aluminum and oxidizer partible sizes and weight precentages.
The burning rates of two very fast burning rate propellants were
found to be essentially independent of acceleration. The erosion sensitivity
of a propellant was found to decrease with increasing acceleration. A model was developed which successfully correlates the experimental
results obtained for the non-metallized propellants. The experimental
results for the metallized propellants could not be correlated by either
of two models proposed by other investigators. This result indicates
that a more complex model is required to explain the observed acceleration
effects for metallized propellants.
Type
Thesis