| 航空发动机状态监控亚定方程组有效数字算法 |
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| 引用本文： | 孙春林,陈国焉.航空发动机状态监控亚定方程组有效数字算法[J].中国民航学院学报,2007,25(6):11-14. |
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| 作者姓名： | 孙春林 陈国焉 |
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| 作者单位： | 中国民航大学航空工程学院 天津300300 |
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| 摘 要： | 缺少状态监控的信息量是基于数学模型的航空发动机状态监控的主要困难。航空发动机状态监控亚定方程组缺少成熟可靠的求解算法。提出一种求解航空发动机状态监控亚定方程组的有效数字算法。此算法按实际工程应用所需的有效数字位数将解空间离散化,再加上亚定方程组本身的物理背景约束,然后用求解整数规划问题的方法将亚定方程组求解出来。仿真结果表明此算法是有效的,且2或3位有效数字的仿真结果曲线拟合较好,能较好地满足实际工程应用的需要。
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| 关 键 词： | 航空发动机状态监控 亚定方程组 有效数字 |
| 文章编号： | 1001-5000（2007）06-0011-04 |
| 收稿时间： | 2007-05-15 |
| 修稿时间： | 2007-09-07 |
Valid Numeral Algorithm for Solving Aeroengine Performance Monitoring Underdetermined Equation Group |
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| SUN Chun-lin,CHEN Guo-yan.Valid Numeral Algorithm for Solving Aeroengine Performance Monitoring Underdetermined Equation Group[J].Journal of Civil Aviation University of China,2007,25(6):11-14. |
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| Authors: | SUN Chun-lin CHEN Guo-yan |
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| Abstract: | The information deficiency of aeroengine performance monitoring(APM) is the main problem of APM based on mathematic model.Aeroengine performance monitoring underdetermined equation group(APMUEG) lacks reliable algorithm.In this paper,a valid numeral algorithm(VNA) is recommended.This algorithm discretizes the solution space according to the valid numeral needed in engineering appliance,then solves APMUEG with integer programming method by using the physical restriction of APMUEG.Simulation results demonstrate that VNA is fairly efficient for solving APMUEG.The good simulation results of two or three valid numerals indicate that VNA can satisfy the needs of engineering appliance. |
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| Keywords: | aeroengine performance monitoring underdetermined equation group valid numeral |
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