| 液体火箭发动机基于主要目标的减损与延寿控制方法 |
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| 引用本文： | 刘洪刚,魏鹏飞,谢廷峰,程玉强,吴建军.液体火箭发动机基于主要目标的减损与延寿控制方法[J].航空动力学报,2008,23(8):1530-1535. |
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| 作者姓名： | 刘洪刚 魏鹏飞 谢廷峰 程玉强 吴建军 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,长沙,410073 |
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| 摘 要： | 首先通过构造目标函数、提取约束条件与问题解的分析,对液体火箭发动机减损与延寿控制技术的优化问题进行了数学描述,然后以某大型液氧/煤油火箭发动机为对象,考虑其涡轮叶片为关键部件,研究了发动机起动过程减损控制律综合分析的主要目标法,并在不同的约束条件下,对实现不同意义下的减损控制进行了仿真计算.结果表明该方法可行且有效,能够有效实现系统性能与关键部件损伤间的权衡并实现预期的减损目标,结果为工程中液体火箭发动机的改进和优化设计提供了重要的参考价值.
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| 关 键 词： | 液体火箭发动机 减损与延寿控制 主要目标 多目标优化 |
| 收稿时间： | 8/9/2007 12:00:00 AM |
| 修稿时间： | 2007/12/17 0:00:00 |
Research ofdamage mitigating and life extending method for liquid-propellant rocket engines based on main object |
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| LIU Hong-gang,WEI Peng-fei,XIE Ting-feng,CHENG Yu-qiang and WU Jian-jun.Research ofdamage mitigating and life extending method for liquid-propellant rocket engines based on main object[J].Journal of Aerospace Power,2008,23(8):1530-1535. |
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| Authors: | LIU Hong-gang WEI Peng-fei XIE Ting-feng CHENG Yu-qiang and WU Jian-jun |
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| Affiliation: | : School of Aerospace and Material Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China;The military delegacy of 2nd artillery in factory 7103, Xian, Shanxi, 710100, China;: School of Aerospace and Material Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China;: School of Aerospace and Material Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China;: School of Aerospace and Material Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China |
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| Abstract: | The optimization method of damage-mitigating and life-extending control(DMLEC) for liquid-propellant rocket engines was presented mathematically in this paper by constructing the object function,acquiring the constraints and analyzing the solutions.Then,the main object method of DMLEC policy analysis and synthesis was developed for a certain LOX/kerosene rocket engine with turbine blade selected as the critical component.Simulated results under diverse situations show that,the method proposed is feasible and effective,since it can not only achieve the expected goal of damage-mitigating by implementing the tradeoff between the system performance and the damage of critical components,but also provide valuable reference for improving and optimizing the design of engines being developed. |
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| Keywords: | liquid-propellant rocket engine damage-mitigating and life-extending control main object multi-objective optimization |
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