| 摘要: |
| 将翼柱型药柱的18个关键尺寸定义成可变多数，通过人机交互输入具体的数值，构造任意烧去肉厚下的药柱模型，并计算该模型的体积。由Ab=△V／△e计算燃烧面积的大小，并进而计算出燃烧室压强和发动机推力。把任意烧去肉厚下的药柱模型和相对应时刻的压强-时间、推力-时间坐标制作成幻灯文件，通过计算机显示器屏幕连续演示，达到动画模拟的效果。 |
| 关键词: 固体推进剂火箭发动机 内弹道模拟计算 推进剂燃烧 图像显示 |
| DOI： |
| 分类号:V435.1 |
| 基金项目: |
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| THE WORKING PROCESS SIMULATION FOR THE SOLID ROCKET MOTOR OF FINOCYL GRAIN |
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Tang Zhidong,Fang Guoyao,Xiang Hongjun,Qu Wen
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School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083
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| Abstract: |
| The working process simulation for the solid rocket motor of finocyl grain-burning surface moving and internal ballistic simulating, eighteen fundamental dimensions of finocyl grain are defined as variable parameters, their specific values can be inputted by the means of man-machine interaction, too. The finocyl grain model of any thickness burned is built and its volume is calculated.Burning area is estimated by the approximate formula Ab=△V/△e, therefore the chamber pressure and the motor thrust can be calculated. The grain models of all thickness burned and the corresponding pressure-time and thrust-time coordinates are made as slide files, these slide files are displayed continually on the computer video screen, so the result of animated simulation is obtained. |
| Key words: Solid propellant rocket engine Internal ballistic simulation calculation Propellant combustion Image display |
