Optimization design of interior PM starter-generator

Zhang, G. H.; Q., C.; Sun, Haiyang; Zhang, L. F.; Liu, Lei; Wang, K.

doi:10.1109/icems.2017.8056253

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…Исследованиям ИСГ посвящены работы [5][6][7][8][9][10][11][12]. В [5] исследуется ИСГ, представляющий собой электрическую машину (ЭМ) с постоянными магнитами (ПМ), по-ложение ротора которой определяется косвенными методами.…”

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“…Авторами [6] разработаны математические модели двигательного и генераторного режимов ИСГ, учитывающие механическую связь ротора ИСГ с рабочими органами АПД. В [7] разрабатывается ИСГ с ПМ для беспилотного ЛА. В [8] разработан ИСГ для АПД мощностью 6 кВт при частоте вращения 6000 об/мин.…”

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“…Недостатками уравнений ( 6) и ( 7) для определения  кр являются необходимость знания многих параметров ТРДД и большие временные затраты, требуемые для проведения расчетов и построения амплитудночастотной характеристики. Амплитудночастотная характеристика строится путем выражения y из системы уравнений (5) и подстановкой в полученное равенство выражений ( 6) или (7).…”

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Determination of critical speed of bypass turbojet engine with integrated starter-generator high-pressure rotor

Ismagilov¹,

Vavilov²,

Urazbakhtin³

et al. 2022

Vestnik IGEU

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Today, the development of aircraft within the electric aircraft concept framework is relevant. In this case, the key technology is the integrated starter-generator, which makes it possible to refuse the mechanical, pneumatic, and hydraulic power take-off from the aircraft engine. In the well-known scientific articles, integrated starter-generators are designed without considering the features due to their location inside the aircraft engines. This study starts a set of projects devoted to the design of integrated starter-generator for a bypass turbojet engine, considering the features of this technical decision. The purpose of this study is to develop approaches to determine critical rotation frequency of high-pressure rotor considering starter-generator integration. Models to determine the critical rotation frequency of a high-pressure rotor with an integrated starter-generator rotor are developed based on non-traditional models of rotor dynamics by mathematical modeling. An area for the integrated starter-generator location has been determined and a constructive method for its implementation is proposed for a bypass turbojet engine. In this study, mathematical expressions are obtained to determine high-pressure rotor critical speed in case of a detailed study of dynamics and in case of an integrated starter-generator preliminary calculations. Based on the value of the critical speed of the high-pressure rotor calculated from the obtained expressions, firstly, it is possible to check the correctness of the choice of the air gap of the integrated starter-generator and strength calculations of the integrated starter-generator in the most difficult operating mode. Secondly, it is possible to determine safe operation area of the bypass turbojet engine with an integrated starter-generator. The results of the study enhance the theoretical foundations of the design of the integrated starter-generators and make it possible to avoid errors in their design and further operation.

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