固体姿轨控发动机变工况过程推力不确定性分析
V435; 为探究喉栓式固体姿轨控发动机推力动态性能可靠性,考虑燃气阀几何参数不确定性对固体姿轨控发动机变工况过程推力性能不确定性开展研究.结合固体姿轨控发动机工作原理、推力数学模型和零维内弹道方程构建发动机变工况过程推力计算模型.在此基础上,根据固体姿轨控发动机阀门几何参数不确定性模型,采用蒙特卡罗模拟法进行不确定性传递,获取喉栓瞬时运动后推力不确定性随时间的变化规律,实现变工况过程推力不确定性分析,并对不确定性变量进行重要度排序.量化评估固体姿轨控发动机实时调节过程中的推力不确定性,可以为固体姿轨控发动机控制系统提供更合理的设计要求,在满足设计需求的同时节省研制成本....
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| Published in | 国防科技大学学报 Vol. 47; no. 1; pp. 94 - 104 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
河北工业大学机械工程学院,天津 300401
01.02.2025
国防科技大学空天科学学院,湖南长沙 410073%国防科技大学空天科学学院,湖南长沙 410073 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-2486 |
| DOI | 10.11887/j.cn.202501009 |
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| Abstract | V435; 为探究喉栓式固体姿轨控发动机推力动态性能可靠性,考虑燃气阀几何参数不确定性对固体姿轨控发动机变工况过程推力性能不确定性开展研究.结合固体姿轨控发动机工作原理、推力数学模型和零维内弹道方程构建发动机变工况过程推力计算模型.在此基础上,根据固体姿轨控发动机阀门几何参数不确定性模型,采用蒙特卡罗模拟法进行不确定性传递,获取喉栓瞬时运动后推力不确定性随时间的变化规律,实现变工况过程推力不确定性分析,并对不确定性变量进行重要度排序.量化评估固体姿轨控发动机实时调节过程中的推力不确定性,可以为固体姿轨控发动机控制系统提供更合理的设计要求,在满足设计需求的同时节省研制成本. |
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| AbstractList | V435; 为探究喉栓式固体姿轨控发动机推力动态性能可靠性,考虑燃气阀几何参数不确定性对固体姿轨控发动机变工况过程推力性能不确定性开展研究.结合固体姿轨控发动机工作原理、推力数学模型和零维内弹道方程构建发动机变工况过程推力计算模型.在此基础上,根据固体姿轨控发动机阀门几何参数不确定性模型,采用蒙特卡罗模拟法进行不确定性传递,获取喉栓瞬时运动后推力不确定性随时间的变化规律,实现变工况过程推力不确定性分析,并对不确定性变量进行重要度排序.量化评估固体姿轨控发动机实时调节过程中的推力不确定性,可以为固体姿轨控发动机控制系统提供更合理的设计要求,在满足设计需求的同时节省研制成本. |
| Abstract_FL | To investigate the dynamic uncertainty of thrust of the pintle SDACM(solid divert and attitude control motor),the study focuses on the uncertainty of the thrust performance during variable operating conditions of the SDACM was carried out with the consideration of the uncertainties of the geometric parameters of the pintle gas valve.Computation model of the thrust during variable operating condition process of the SDACM was established by combining the working principle of the SDACM,the regular mathematical model of thrust and the zero-dimensional internal ballistic equation.On this basis,the uncertainty propagation was performed by Monte Carlo simulation method according to the uncertainty models of the geometry parameters of the SDACM,and the variation law of the thrust uncertainty over time after the transient motion of the pintle was obtained,thereby the uncertainty analysis of the thrust in the process of variable operating conditions was realized,and the uncertainty variables were weighted in order of importance.Quantification and evaluation of thrust uncertainty in the real-time regulation process of the SDACM can provide more reasonable design requirements for the control system,and save the development cost of the SDACM while meeting the design requirements. |
| Author | 高经纬 张为华 张杰 武泽平 张德权 贾军凯 |
| AuthorAffiliation | 国防科技大学空天科学学院,湖南长沙 410073%国防科技大学空天科学学院,湖南长沙 410073;河北工业大学机械工程学院,天津 300401 |
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| Author_FL | ZHANG Dequan ZHANG Jie ZHANG Weihua JIA Junkai WU Zeping GAO Jingwei |
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| DocumentTitle_FL | Uncertainty analysis of thrust during variable operating condition process of solid divert and attitude control motor |
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| Keywords | uncertainty analysis 不确定性分析 零维内弹道方程 推力性能 固体姿轨控发动机 变工况过程 thrust performance variable operating condition process SDACM zero-dimensional internal ballistic equation |
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| Publisher | 河北工业大学机械工程学院,天津 300401 国防科技大学空天科学学院,湖南长沙 410073%国防科技大学空天科学学院,湖南长沙 410073 |
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| Title | 固体姿轨控发动机变工况过程推力不确定性分析 |
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