| 飞机燃油管路功能可靠性及其灵敏度分析 |
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| 引用本文： | 张屹尚,赵彬,刘永寿,岳珠峰. 飞机燃油管路功能可靠性及其灵敏度分析[J]. 航空计算技术, 2009, 39(6): 10-13 |
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| 作者姓名： | 张屹尚 赵彬 刘永寿 岳珠峰 |
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| 作者单位： | 西北工业大学,工程力学系,陕西,西安,710129;西北工业大学,工程力学系,陕西,西安,710129;西北工业大学,工程力学系,陕西,西安,710129;西北工业大学,工程力学系,陕西,西安,710129 |
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| 基金项目： | 国家863计划资助项目,陕西省自然科学基础研究计划项目,西北工业大学科技创新基金资助项目 |
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| 摘 要： | 基于哈根-伯肃叶公式,建立了考虑各种流动损失的飞机典型燃油管路系统的失效模型,采用蒙特卡洛法进行可靠性建模,在考虑管长、管直径和液体密度等参数随机分布的基础上,利用该模型分析了不同飞行状态下和使用不同渐扩管时飞机燃油管路系统的功能可靠性。并利用蒙特卡洛法对燃油管路的功能可靠性灵敏度进行了分析。研究结果可为飞机燃油管道系统设计和评估提供依据。
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| 关 键 词： | 燃油管路 蒙特卡洛法 功能可靠性 灵敏度 |
Analysis of Functional Reliability and its Parameter Sensitivity in Aircraft Fuel Pipelines |
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| ZHANG Yi-shang,ZHAO Bin,LIU Yong-shou,YUE Zhu-feng. Analysis of Functional Reliability and its Parameter Sensitivity in Aircraft Fuel Pipelines[J]. Aeronautical Computer Technique, 2009, 39(6): 10-13 |
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| Authors: | ZHANG Yi-shang ZHAO Bin LIU Yong-shou YUE Zhu-feng |
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| Affiliation: | ZHANG Yi- shang, ZHAO Bin, LIU Yong- shou, YUE Zhu- feng ( Department of Engineeering Mechanics, Northwestern Polytechnical University, Xi＇an 710129, China ) |
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| Abstract: | Based on Hagen-Poiseuille formula,failure model of typical aircrafts' fuel pipelines is established considered series of flow losses.Monte-Carlo method is introduced to analysis the model's reliability.Then,random parameters such as pipe length,pipe diameter and fluid density are considered,and the reliability of fuel pipelines in different flight states using different gradual enlarged pipes is analyzed.Finally,sensitivity of the fuel pipeline's functional reliability is explored and pipe length is chief f... |
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| Keywords: | fuel pipelines monte-carlo method functional reliability sensitivity |
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