Excited state parameters as evaluation of rocket engines capacity by a factor of high-frequency stability
DOI:
https://doi.org/10.15587/1729-4061.2013.9324Keywords:
engines capacity, rocket engines, high-frequency stability, combustion chamber.Abstract
The article presents materials of experimental and theoretical studies of the excited state parameters, as well as conditions of their applicability, permitting to evaluate the rocket engines capacity by a factor of high-frequency stability of processes occurring in the combustion chamber and the gas generator.Recognizing the existence of a link between the engines capacity and values of a few parameters of the excited state, the researches of informativeness of characteristics of engines capacity, defined using the combinations of values of complexes of these parameters, were conducted. The conditions for the recognition of the link between the engines capacity and the values of parameters of the excited state that is conditions for recognition of informativeness of parameters on tests outcomes, were formulated. Two ways of evaluation of the informativeness of characteristics of the engines capacity according to the combination of the values of parameters of the excited state were formulated: direct, based on the comparison of frequencies of nonoccurrence of the engines failure, and indirect, based on the comparison of conditional characteristics of the measure of differences of parameters from marginal combinations.
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