| Closed burner method is used for determining burning rate of the solid propellants. It is developed from experiments with the aim of engineering application in this thesis.Firstly, the fundamental and model of this method are be described, then a new engineering heat loss modifying method is put forward, and the advantages and disadvantages of this method is analyzed in theory. A set of high-precision dynamic pressure measuring system and man-machine interaction data processing soft are set up. It is analyzed in the field of the error of this method based on lots of experiments, and some eliminating or reducing ways are offered. By the use of the heat loss modifying method provided in this paper, we can obtain the satisfying rate characteristic results, and this method can be applyed in the engineering. |