研究人员分析了垂直起降飞行器

2019-04-11 22:41

研究人员分析了垂直起降飞行器起飞悬停、爬升悬停、巡航悬停、下降悬停和降落悬停五个阶段的一次能源使用和温室气体排放。这些飞机在起飞和爬升过程中消耗了大量能量,但在巡航阶段相对高效,时速可达150英里。因此,VTOLs在长途旅行中是最节能的,当巡航阶段主导了总飞行里程。

但是对于短途旅行——任何小于35公里(22英里)的地方——单人内燃机车比单人VTOLs使用更少的能源,产生更少的温室气体排放。这是一个重要的考虑因素,因为地面车辆的平均通勤距离只有17公里(11英里)。研究报告的撰写者之一、密歇根大学环境与可持续发展学院(U-M School for Environment and Sustainability)和罗斯商学院(Ross School of Business)的研究生吉姆?“因此,VTOLs在可持续移动系统中的贡献和作用将受到限制。”

不足为奇的是,VTOL完成了100公里的基箱飞行,比地面车辆快得多。点对点垂直起降(VTOL)飞行路线,加上更高的速度,与地面车辆相比,节省了大约80%的时间。弗布什说:“总的来说,飞机电气化有望在不久的将来从根本上改变航天工业。该研究的作者指出,还需要解决许多其他问题来评估VTOLs的可行性,包括成本、噪音以及社会和消费者的接受程度。

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English version

The researchers analyzed primary energy use and greenhouse gas emissions in five phases: take-off hover, climb hover, cruise hover, descent hover, and landing hover. These aircraft consume a lot of energy during take-off and climb, but are relatively efficient during the cruise phase and can reach speeds of up to 150 miles per hour. Therefore, VTOLs are the most energy-efficient in long-distance travel, and the total flight mileage is dominated during the cruise phase.

But for short trips - anywhere less than 35 kilometers (22 miles) - single-person diesel locomotives use less energy than single VTOLs, producing less greenhouse gas emissions. This is an important consideration because the average commuting distance of ground vehicles is only 17 kilometers (11 miles). One of the authors of the study, the UM School for Environment and Sustainability and the graduate student of the Ross School of Business, Jim? "Therefore, the contribution of VTOLs to sustainable mobile systems And the role will be limited."

Not surprisingly, VTOL completed a 100-kilometer base flight, much faster than a ground vehicle. The point-to-point vertical take-off and landing (VTOL) flight path, combined with higher speeds, saves approximately 80% of the time compared to ground vehicles. "In general, aircraft electrification is expected to fundamentally change the aerospace industry in the near future. The authors of the study point out that many other issues need to be addressed to assess the viability of VTOLs, including cost, noise, and social and Consumer acceptance.

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