摘要本文利用公式推导模型和建立模型,编制了程序来进行模拟,对小火箭内弹道过程进行了计算与分析。内容如下: (1)通过装药几何参数变化计算压强随时间变化规律,得出压强随时间变化曲线从而进一步推出推力随时间变化曲线,为火箭弹发射提供设计依据。 (2)为了得到更精确的计算结果进行零文内弹道方程求解。 (3)采用龙格库塔法编制程序,具有较高的精度和准确性,计算模拟结果和试验所得结果较为相近,并进充分运用所学内弹道学知识进行了理论分析。27124 毕业论文关键词:小火箭弹,内弹道,燃烧室,拉瓦尔喷管
Title A rocket launch interior ballistic process
Abstract
This article use the formulas derived for the establishment of model, programming
and simulating .Calculate and analysis of interior ballistic process of small
rocket .The contents are as follows:
(1) By changing the charge of calculating geometric parameters of pressure change
laws ,knowing the pressure change with time curve and the further introduction
of thrust curve changes with time . Providing the design basis for the rocket
launch.
(2) In order to get a more accurate calculation of the results of solving zero
dimensional internal ballistic equations.
(3) Using the Runge - Kutta method program with high precision and accuracy. The
simulation results and experimental results is similar . And make full use of the
knowledge of the theoretical analysis of interior ballistics.
Keywords Small rockets ; Interior ballistic ; Combustion chamber ; Lawal nozzle
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