Date of Award
Master of Science (MS)
Mechanical and Aerospace Engineering
Robert A. Frederick, Jr.
David M. Lineberry
George J. Nelson
Solid propellants--Combustion., Solid propellant rockets., X-rays--Industrial applications.
The burning rate of solid propellants can be difficult to measure for unusual burning surface geometries, but X-ray imaging can be used to measure burning rate. The objectives of this work were to measure the baseline burning rate of an electrically-controlled solid propellant (ESP) formulation with real-time X-ray radiography and to determine the uncertainty of the measurements. Two edge detection algorithms were written to track the burning surface in X-ray videos. The edge detection algorithms were informed by intensity profiles of simulated 2-D X-ray images. With a 95% confidence level, the burning rates measured by the Projected-Slope Intersection algorithm in the two combustion experiments conducted were 0.0839 in/s ±2.86% at an average pressure of 407 psi ±3.6% and 0.0882 in/s ±3.04% at 410 psi ±3.9%. The uncertainty percentages were based on the statistics of a Monte Carlo analysis on burning rate.
Denny, Matthew D., "Measurement of solid rocket propellant burning rate using x-ray imaging" (2015). Theses. 145.