High specific power electric motor is a key enabling technology for electric/hybrid-electric propulsion for aircraft. High-frequency, 'air-core' machine topologies show potential for high specific power when the machines are integrated within jet engines at high speed, e.g. 15,000 rpm. In this paper, we explore how these machines scale to electric propulsion systems at a range of speeds, to also include 'boundary layer ingestion' fan in newly proposed Single-aisle Turboelectric Aircraft with an Aft Boundary-Layer (STARCABL) propulsors. Detailed analytical models that have been experimentally verified, and an evolutionary genetic algorithm are utilized to study the effect of speed on weight of the topology. The results show that the topology, especially with proper selection of support structure design, maintains high specific power even at lower speeds. Furthermore, a case study shows that rim-driven fan topology is favorable for the boundary layer ingestion fan.
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机译：高特定电力电动机是用于飞机电气/混合电动推进的关键能力技术。 高频，“空气核心”机器拓扑显示当机器以高速电气发动机内整合时的高特定功率，例如， 15,000 rpm。 在本文中，我们探讨这些机器如何在一系列速度下缩放到电动推进系统，还包括具有船尾边界层（Starcabl）推进器的新提出的单极涡轮电机中的“边界层摄入”风扇。 已经通过实验验证的详细分析模型和进化遗传算法来研究速度对拓扑重量的影响。 The results show that the topology, especially with proper selection of support structure design, maintains high specific power even at lower speeds. 此外，案例研究表明，边缘驱动的风扇拓扑有利于边界层摄取风扇。
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