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| 燃烧条件下药柱脱粘扩展的设计 | |
| 引用本文： | 阳建红,侯根良,刘朝丰,成曙,何国强,吕秋娟,岳应娟.燃烧条件下药柱脱粘扩展的设计[J].推进技术,2004,25(3):274-277,281. |
| 作者姓名： | 阳建红 侯根良 刘朝丰 成曙 何国强 吕秋娟 岳应娟 |
| 作者单位： | 1. 西安交通大学,材料科学与工程学院,陕西,西安,710049 2. 第二炮兵工程学院,机电工程系,陕西,西安,710025 3. 西北工业大学,航天工程学院,陕西,西安,710072 |
| 基金项目： | 国家重点实验室基金资助项目(99JS60.2.2JB4702). |
| 摘 要： | 利用有限元方法分析了不同条件下药柱脱粘部位的应力状况,设计了复合固体推进剂燃烧条件下的脱粘扩展试件,通过X射线实时成像系统纪录了燃烧过程。结果表明:要形成脱粘扩展,脱粘部位装药要有大的拉伸变形;当药柱在点火冲击作用下,脱粘产生比较大的拉伸变形,且变形达到脱粘扩展的临界变形量时,就会出现脱粘扩展。 |
| 关 键 词： | 固体推进剂火箭发动机 推进剂燃烧 脱粘 有限元法 |
| 文章编号： | 1001-4055(2004)03-0274-05 |
Design the sample of the debond propagation in burning propellant |
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| YANG Jian-hong,HOU Gen-liang,LIU Chao-feng,CHENG Shu,HE Guo-qiang,Lu Qiu-juan and YUE Ying-juan.Design the sample of the debond propagation in burning propellant[J].Journal of Propulsion Technology,2004,25(3):274-277,281. | |
| Authors: | YANG Jian-hong HOU Gen-liang LIU Chao-feng CHENG Shu HE Guo-qiang Lu Qiu-juan and YUE Ying-juan |
| Abstract: | In order to study the debond propagation in the burning propellant,finite element method was used to calculate the stress distribution of different specimens?The combustion process was measured by the X-ray real time radiography system. The conclution is that the large tension deformation must be obtained for the debond propagation. Since the deformation slot is pressed in the specimen ignition,the larger tension deformation will be obtained. As a result,when the tension deformation reaches the critical value,the debond will be propagated. |
| Keywords: | Solid propellant rocket engine Propellant combustion Debond~ Finite element method |
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