符毓 Yu
(2024-10-30 21:44):
#paper doi:10.3390/aerospace6030026 Aerospace, 2019, Electric VTOL Configurations Comparison 本文介绍了自五十年代以来建造的 VTOL,并讨论了它们的优点、缺点和问题。对三种代表性 eVTOL(每种主要配置一种)的五个主要参数和三个参考任务进行了比较。这些参数包括磁盘负载、总悬停时间、巡航速度、实际航程和飞行时间。通过计算所需的时间和能量,评估了 eVTOL 在城市、城郊和远程任务中的性能。结果表明,最佳配置取决于任务。多旋翼飞机在悬停时效率更高。矢量推力喷气发动机在巡航时效率更高,航程也更大。升力 + 巡航是一种折衷方案。
Aerospace,
2019-2-28.
DOI: 10.3390/aerospace6030026
Electric VTOL Configurations Comparison
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Abstract:
In the last ten years, different concepts of electric vertical take-off and landing aircrafts (eVTOLs) have been tested. This article addresses the problem of the choice of the best configuration. VTOLs built since the fifties are presented and their advantages, disadvantages, and problems are discussed. Three representative eVTOLs, one for each main configuration, are compared on five main parameters and three reference missions. The parameters are disk loading, total hover time, cruise speed, practical range, and flight time. The performance of the eVTOLs on the urban, extra-urban, and long-range mission is evaluated computing the time and energy required. The results show that the best configuration depends on the mission. The multirotor is more efficient in hover. The vectored thrust jet is more efficient in cruise and has a higher range. The lift + cruise is a compromise.
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