| 无人机航程和航时的燃油灵敏度分析 |
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| 引用本文： | 廖炎平,刘莉,龙腾.无人机航程和航时的燃油灵敏度分析[J].航空计算技术,2011,41(2):28-32. |
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| 作者姓名： | 廖炎平 刘莉 龙腾 |
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| 作者单位： | 北京理工大学,宇航学院,北京,100081 |
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| 基金项目： | 航空科学基金项目资助，北京理工大学优秀青年教师资助计划 |
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| 摘 要： | 研究了无人机航程和航时的燃油重量相对变化随巡航结束重量、平均升阻比和平均耗油率的变化关系。假定巡航结束重量、平均升阻比和平均耗油率为三个线性无关的变量,采用偏导数的方法推导了喷气式和活塞螺旋桨式无人机巡航燃油重量变化的小变化方程。采用了两个算例进行了无人机的航程和航时的燃油灵敏度分析,小变化方程的燃油重量相对变化计算结果和考虑变量耦合后的燃油重量相对变化计算结果吻合较好。研究结果表明所建立的无人机航程和航时的燃油灵敏度分析模型合理。
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| 关 键 词： | 无人机 航程 航时 燃油灵敏度 |
Fuel-sensitivity Analyses for Range and Endurance of Unmanned Aerial Vehicle |
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| LIAO Yan-ping,LIU Li,LONG Teng.Fuel-sensitivity Analyses for Range and Endurance of Unmanned Aerial Vehicle[J].Aeronautical Computer Technique,2011,41(2):28-32. |
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| Authors: | LIAO Yan-ping LIU Li LONG Teng |
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| Institution: | (School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | The function of the relative change in fuel weight for the range and endurance of Unmanned Aerial Vehicle（UAV） linking the end of cruise weight,mean lift to drag ratio and mean specific fuel consumption（SFC） is investigated in this paper.It is assumed that end of cruise weight,mean lift to drag ratio and mean SFC are independent variables,the linear expression of a relative change in cruise fuel weight for jet and piston-propeller UAV is formulated by partial derivatives method.The fuel-sensitivity analyses for range and endurance of UAV are validated by two applications.The results of relative change in fuel weight by linear expression are well to the results by considering the combined effect of all three parameters.The results of the investigation show that the fuel sensitivity analysis models for range and endurance of UAV are reasonable. |
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| Keywords: | unmanned aerial vehicle range endurance fuel-sensitivity |
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