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Study on the effects of gas temperature on cold flow test of nozzle damping

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Based on the Buffum’s cold flow test, the pulse decay method has been used to study the effect of gas temperature on nozzle damping characteristics in SRMS (solid rocket motors), aiming to explore the nozzle damping relationship between cold flow test and hot fire test and provide a corresponding theoretical guidance to cold flow test. Several cases with different gas temperature have been presented to investigate the influences on nozzle damping. The results indicate that the gas temperature has cooperative effects on the nozzle damping. After the pulse’s cut off, the higher the gas temperature is, the faster pressure oscillation decays, that is to say, the bigger the nozzle damping attenuation coefficient is. There have great differences between cold flow and hot fire test. In order to predict the nozzle damping of the SRM accurately, the gas temperature is necessary to consider.

源语言英语
主期刊名51st AIAA/SAE/ASEE Joint Propulsion Conference
出版商American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624103216
DOI
出版状态已出版 - 2015
活动51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015 - Orlando, 美国
期限: 27 7月 201529 7月 2015

出版系列

姓名51st AIAA/SAE/ASEE Joint Propulsion Conference

会议

会议51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015
国家/地区美国
Orlando
时期27/07/1529/07/15

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