Experimental Evaluation of Carbon-Carbon Nozzle Inserts for Low-thrust, Long-duration Motors

摘要：

This paper describes the design and experiment to evaluate the carbon-carbon nozzle inserts for low-thrust, long-duration solid rocket motor applications. The 300-N, 200-s motor using carbon-carbon insert was tested with great success. The transient value of the throat diameter was obtained from the pressure and thrust measurements. It is indicated that the throat experiences four phases as initial deposition, deposition melt, continuous erosion, erosion alternating with deposition; the throat erosion is the main limiting factor for the motor advancement. The effect of chamber pressure on the throat erosion and deposition was also investigated. The chamber pressure to ensure motor stable operation was suggested.

作者: ZHANG Xiaoguang LIU Yu WANG Changhui REN Junxue ZHAN Kai

作者单位: Faculty 403, School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100 School of Engineering Applied Science, The George Washington University, Washington, DC 20052, USA)

会议类型: 国际会议

会议名称: 2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)

会议地点: 南京

会议语种:英文

页码: 704-708

在线出版日期: 2011-09-20（万方平台首次上网日期，不代表论文的发表时间）