Modeling and control of a micro aero-engine thrust vector system

LI Yingjie; WU Linfeng; LI Chunwen

doi:10.16511/j.cnki.qhdxxb.2019.26.042

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Journal of Tsinghua University(Science and Technology) ›› 2020, Vol. 60 ›› Issue (3) : 198-205. DOI: 10.16511/j.cnki.qhdxxb.2019.26.042

SPECIAL SECTION: AEROSPACE AND ENGINEERING MECHANICS

Modeling and control of a micro aero-engine thrust vector system

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Abstract

A micro aero-engine model was used to study the control of the thrust vector system of a sub-scaled flight demonstrator. A mechanism model was combined with experimental data to model the thrust vector system. Aerodynamic declination and thrust loss coefficients were introduced to modify the mechanism model. The control laws were based on an improved generalized minimum variance method. Simulations show that the new method improves the model sensitivity to the control parameters compared with the traditional generalized minimum variance method. A control scheme was developed for the thrust vector system with simulations showing that the predictions are acceptable for the control of sub-scaled fighters.

Key words

micro aero-engine / thrust vector system / aerodynamic deflection / thrust loss coefficient / improved generalized minimum variance control

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LI Yingjie, WU Linfeng, LI Chunwen. Modeling and control of a micro aero-engine thrust vector system[J]. Journal of Tsinghua University(Science and Technology). 2020, 60(3): 198-205 https://doi.org/10.16511/j.cnki.qhdxxb.2019.26.042

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