Yanji Hong

Theoretical Research on the Combustion Characteristics of Ammonium Dinitramide-Based Non-Toxic Aerospace Propellant

Jianhui Han, Ming Wen, Yanji Hong, Baosheng Du et autres

Propellants play a crucial role in the propulsion systems of aerospace vehicles, and their combustion characteristics are susceptible to external environmental conditions. This study systematically investigated the impact of various initial conditions on the combustion process of ADN-based propellant, including combustion products, …

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Research on Micro-Propulsion Performance of Laser Ablation ADN-Based Liquid Propellant Enhanced by Chemical Energy

Luyun Jiang, Jifei Ye, Chentao Mao, Baosheng Du et autres

The vigorous development of micro–nano satellites urgently requires satellite-borne propulsion systems as support. Pulsed laser ablation micro-propulsion can meet these high demands. Ammonium dinitramide (ADN), as a green monopropellant, can serve as the working substance for laser ablation. This work investigated the …

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Optical excitation of metastable krypton using a long-lifetime vacuum ultraviolet lamp

Jianwei Liang, Gaoping Feng, Shandong Qi, Weisheng Xu et autres

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A high-precision measurement method for moment of inertia based on torsion pendulum method

Haichao Cui, Yanji Hong, Baosheng Du, Jianhui Han et autres

Abstract The precise determination of moment of inertia (MOI) holds paramount importance in investigating the rotational dynamics of an object. Based on the torsion pendulum system, a novel high-precision measurement method for MOI is developed by using the constant force in this …

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Theoretical Investigation of Laser Ablation Propulsion Using Micro-Scale Fluid in Atmosphere

Chentao Mao, Luyun Jiang, Baosheng Du, Yongzan Zheng et autres

Laser ablation propulsion based on liquid propellants is a type of propulsion technology with a high specific impulse and good controllability that can be applied to space thrusters, gas metal arc welding, and extreme ultraviolet light. However, its basic mechanisms, such as …

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Effects of Different Initial Conditions on Combustion Process of Ammonium Dinitramide-Based Energetic Propellant in Straight Nozzle

Luyun Jiang, Chentao Mao, Jianhui Han, Haichao Cui et autres

As a new type of green propellant, ammonium dinitramide (ADN)-based energetic propellants have wide application value and development potential in the field of space propulsion. This paper delves into the intricate impact of varying initial temperatures, pressures, and propellant component ratios on …

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Study on Radiation Damage of Silicon Solar Cell Electrical Parameters by Nanosecond Pulse Laser

Sai Li, Long-Cheng Huang, Jifei Ye, Yanji Hong et autres

This experimental study investigates the damage effects of nanosecond pulse laser irradiation on silicon solar cells. It encompasses the analysis of transient pulse signal waveform characteristics at the cells’ output and changes in electrical parameters, such as I–V curves before and after …

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Optical Excitation of Metastable Krypton Using a Long-Lifetime Vacuum Ultraviolet Lamp

Jianwei Liang, Gaoping Feng, Shandong Qi, Weisheng Xu et autres

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Development of a Laser Micro-Thruster and On-Orbit Testing

Jifei Ye, Sibo Wang, Hao Chang, Yanji Hong et autres

Laser micro-thrust technology is a type of propulsion that uses a laser beam to ablate a propellant such as a metal or plastic. The ablated material is expelled out the back of the spacecraft, generating thrust. The technology has the advantages of …

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Experimental Study on the Propagation Characteristics of Rotating Detonation Wave with Liquid Hydrocarbon/High-Enthalpy Air Mixture

Bingyue Jia, Yining Zhang, Hao Meng, Fanxiao Meng et autres

Rotating detonation engines (RDEs) are a promising propulsion technology featuring high thermal efficiency and a simple structure. To adapt the practical engineering applications of ramjet RDEs, rotating detonation combustion using a liquid hydrocarbon and pure air mixture will be required. This paper …

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Enhancement of the 123.6 nm light intensity in a krypton lamp by optical pumping

Jianwei Liang, Gaoping Feng, Baosheng Du, Wei Rao et autres

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Transmissive Mode Laser Micro-Ablation Performance of Ammonium Dinitramide-Based Liquid Propellant for Laser Micro-Thruster

Baosheng Du, Yongzan Zheng, Chentao Mao, Haichao Cui et autres

The transmissive mode laser micro-ablation performance of near-infrared (NIR) dye-optimized ammonium dinitramide (ADN)-based liquid propellant was investigated in laser plasma propulsion using a pulse YAG laser with 5 ns pulse width and 1064 nm wavelength. Miniature fiber optic near-infrared spectrometer, differential scanning …

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