Yong Li
6 Papers
Yong Li is an academic researcher. The author has contributed to research in topics: Spacecraft & Computer science. The author has co-authored 1 publications.
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Papers
Stability Analysis of Spacecraft Phase Plane Control Systems: A Brief Overview and Some Problems
Zhihua Chen,Yongchun Xie,Yong Guo,Jinhua Guo,Kai Zhang,Wangkui Liu,Yong Li,Guangxu Li,Zhongze Zhou +8 more
- 06 Nov 2020
TL;DR: In this article, the typical nonlinear characteristics of the phase plane control (PPC) method and their effects on the stability analysis are clearly pointed out, and five common stability analysis methods for the spacecraft PPC system are overviewed and analyzed.
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DSMC Simulation of the Effect of Needle Valve Opening Ratio on the Rarefied Gas Flows inside a Micronozzle with a Large Length-to-Diameter Ratio
TL;DR: In this paper , the effect of different needle valve opening ratios on the rarefied flow characteristics of a micro-nozzle in a cold gas micro-propulsion system was investigated based on DSMC method.
Theoretical Research on Magnetic Confinement Mechanism of Applied-Field Magnetoplasmadynamic Thruster
Yifan Du,Jinxing Zheng,Hai Yang Liu,Yong Li,Cheng Zhou,Ge Wang,Zhuoyao Tang,Yudong Lu,Luoqi Wang +8 more
TL;DR: In this article , an ideal magnetic fluid model of the MPDT was established based on the MHD method, and the working mechanism was analyzed and summarized according to simulations and experiments.
Computer Simulation and Artificial Intelligence Driven Frameworks for Stability Analysis of Spacecraft Phase Plane Control Systems
Zhihua Chen,Ruizhi Luo,Wangkui Liu,Jin-hua Guo,Yong Li,Yongming Luo,Kai Zhang,Yongchun Xie +7 more
- 03 Aug 2022
TL;DR: Two CS and artificial intelligence (AI)-based stability analysis frameworks are proposed, which are called the CS and AI driven framework-I and framework-II in the following text, which find the stability characteristics based on the CS data with AI firstly, and then draw a stability conclusion by proving the stability conjecture with human.
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Direct Simulation Monte Carlo Simulation of the Effect of Needle Valve Structures on the Rarefied Flow of Cold Gas Thrusters
Songcai Lu,Xuhui Liu,Xu-Dong Wang,Shurui Zhang,Yu-Song Yu,Yong Li +5 more
TL;DR: The needle valve structure significantly impacts the flow state of rarefied gas in micro-nozzles. Increased curvature of the needle valve enhances flow velocity in the throat and expansion section. Conical spool shape minimizes velocity gradient in high-speed region. Arc-shaped spool valve maximizes nitrogen flow at the nozzle during wide openings.