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论文:2012,Vol:30,Issue(4):541-546 |
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引用本文： |
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昌敏, 周洲, 李盈盈. 基于能量平衡的太阳能飞机可持续高度分析[J]. 西北工业大学 |
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Chang Min, Zhou Zhou, Li Yingying. An Effective Theoretical Analysis of Persistent Flight Altitudes of Solar-Powered Airplanes[J]. Northwestern polytechnical university |
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| 基于能量平衡的太阳能飞机可持续高度分析 |
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| 昌敏, 周洲, 李盈盈 |
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| 西北工业大学 无人机特种技术国防科技重点实验室,陕西 西安 710065 |
| 摘要: |
| 相对于常规动力型式的长航时飞机,尽量提高太阳能飞机的最大持续任务高度,更能体现其在工程应用中的显著优势。基于能量平衡,采用敏度分析的方法,着重分析了各总体参数对太阳能飞机可持续高度的影响及约束程度。参与分析的总体参数有各系统部件的"效率特性"参数、"重量特性"参数和设计指标中的飞行季节等。研究结果表明:主要有光伏组件效率及其面密度、结构面密度和二次电池比能量共同约束着可持续高度的上限;要实现跨季节或数年飞行时,飞行季节也约束着可持续高度的上限;另外,仅从能量采集与能量消耗之间的差值来看,太阳能飞机"有利"巡航高度约为10 km。所研究的结果能为太阳能飞机方案设计阶段中的总体参数选型提供指导。 |
| 关键词:
能量平衡
太阳能飞机
可持续高度
飞行季节
总体参数
翼载荷
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| An Effective Theoretical Analysis of Persistent Flight Altitudes of Solar-Powered Airplanes |
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| Chang Min, Zhou Zhou, Li Yingying |
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| Science and Technology on UAV Laboratory,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| Based on the coupling effects among persistent flight altitudes and conceptual parameters of solar pow-ered airplanes under the constraint of energy balance，we investigated the ways how“efficiency parameters"and“weight parameters"of every component and the flight seasons of design parameters constrain and influence persis-tent flight altitudes. Sections 1 through 3 explain the theoretical analysis mentioned in the title，which we believe iseffective. Sections 1, 2 and 3 are entitled respectively: (1) “Persistent Altitudes under constraint of Energy Bal-ance" ，(2) “Characteristics of Wing Loading and Various Parameters of Every Component" , (3) “Effect of EachParameter on Persistent Altitude". For convenience，section 2 is divided into four subsections (2. 1，2. 2，2. 3，and2. 4); Fig. 1 is the schematic diagram showing the relationship between wing loading on the one hand and vari-ous parameters of every component on the other. The calculated results，presented in Figs. 2 through 8，show pre-liminarily that: (1) it is mainly absorption efficiency and area density of photovoltaic panels，area density of struc-ture and energy density of battery that constrain the upper limits of persistent flight altitudes; (2) if a solar poweredairplane is required to maintain flight for several seasons or several years，different seasons correspond to differentupper limits of persistent flight altitudes; (3) only from the point of view of remaining energy, which is equal to ab-sorption energy minus consumed energy，the persistent flight altitudes around 10 km enjoy higher advantages. Allthe research results we believe can guide the effective selection of conceptual parameters to meet design require-ments at the phase of conceptual design of solar powered airplanes. |
| Key words:
aircraft
calculations
requirements
conceptual design
design
efficiency
energy balance
loading
photovoltaic cells
schematic diagrams
unmanned aerial vehicles (UAV);flight seasons
persistentflight altitudes
solar-powered UAVs
wing loading
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| 收稿日期: 2011-10-28
修回日期:
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| DOI: |
| 基金项目: 863项目(2011AA7052002)资助 |
| 通讯作者:
Email： |
| 作者简介: 昌敏(1986-),西北工业大学博士研究生,主要从事飞行器总体设计研究。
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| 相关功能 |
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| 作者相关文章 |
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| 昌敏 在本刊中的所有文章 |
| 周洲 在本刊中的所有文章 |
| 李盈盈 在本刊中的所有文章 |
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参考文献: |
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[1] Noll T E，Brown J M，et al. Investigation of the Helios Prototype Aircraft Mishap. NASA Report, 2004
[2] 昌 敏, 周 洲, 郑志成. 太阳能飞机原理及总体参数敏度分析. 西北工业大学学报, 2010, 28(5): 792-796Chang Min，Zhou Zhou，Zheng Zhicheng. Flight Principles of Solar-Powered Airplane and Sensitivity Analysis of Its ConceptualParameters. Journal of Northwestern Polytechnical University, 2010, 28(5): 792-796 (in Chinese)
[3] Keidel B. Auslegung und Simulation von Hochfliegenden，Dauerhaft Stationierbaren Solardrohnen. Lehrstuhl für Flugmechanikund Flugregelung，Technische Universitt München, 2000
[4] André Noth. Design of Solar Powered Airplanes for Continuous Flight. Switzerland: Ingénieur en Microtechnique Ecole Polytech-nique Fédérale de Lausanne, 2008
[5] John Frederick Gundlach. Multi-Disciplinary Design Optimization of Subsonic Fixed-Wing Unmanned Aerial Vehicles Projectedthrough 2025. Virginia Polytechnic Institute and State University, 2004 |
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