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Influence of Improved Power System Modeling on Electric Helicopter Configuration Selection

机译：改进电力系统建模对电直升机配置选择的影响

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There is currently significant interest in the design of small electric vertical take-off and landing aircraft to alleviate ground traffic and congestion in major urban areas. To support progress in this area, conceptual design methods for electric single-main-rotor and lift-augmented compound helicopters previously developed by the authors have been modified to include improved battery and propulsion system models. The updated methods were used to reinvestigate the feasible design space based on varying mission profiles and technology assumptions. The results show that the energy capacity of the battery drives the battery sizing, rather than the power requirements. Improving the propulsion system models also increased the bounds of the projected feasible design space and enabled an additional study into the potential benefits of decoupling the main rotor from the tail rotor. This study showed that decoupling the main rotor and tail rotor has the potential to reduce the total mission energy required by between 3% and 35% depending on the mission distance modeled at the conservative future technology level. A comparison of the single-main-rotor and lift-augmented compound helicopter configurations was re-examined, and it was found that there is an increase in the region in the design space where the lift-augmented compound helicopter is the more energy efficient helicopter configuration.
机译：目前对小型电动垂直起飞和着陆飞机的设计具有重要兴趣，以缓解主要城市地区的地面交通和拥堵。为了支持该领域的进展，已经修改了先前由作者开发的电动单主转子和升上复合转接的概念设计方法，以包括改进的电池和推进系统模型。更新的方法用于基于不同的任务简档和技术假设来加强可行的设计空间。结果表明，电池的能量容量驱动电池尺寸，而不是电源要求。提高推进系统模型也增加了投影可行的设计空间的界限，并使额外的研究进入从尾转子去耦的主转子的潜在益处。本研究表明，取决于在保守的未来技术水平上建模的任务距离，对主转子和尾部转子的解耦了3％和35％所需的总任务能源。重新检查单主转子和升上的复合的复合直升机配置的比较，发现设计空间中的区域增加了升空复合直升机是更节能的直升机配置。

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