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Introduction of Aerospace Technology
Chinese Name:空天技术
English Name: Aerospace Technology
Publication cycle: Bimonthly
Language: Chinese
Director: China Aerospace Science and Industry Corporation Limited (CASIC)
Sponsor: Beijing HIWING Scientific and Technology Information Institute
Editor in chief: LIU Haifeng
A comprehensive review of multi-source data-driven modeling approaches for aerospace vehicles
Wen Jiawei;Yang Ben;Zhu Baiyang;Liu Yanbin;Chen Boyi;Chen Jinbao;Aerospace vehicles are characterized by wide flight envelopes, strong nonlinearities, and significant multi-physics coupling, making it difficult for traditional mechanism-based modeling or puredatadriven modeling relying on single data sources to simultaneously meet accuracy and efficiency requirements. To address this challenge, this paper systematically reviews the methodological framework and engineering applications of intelligent modeling for aerospace vehicles from the perspective of multi-source data-driven modeling. First, the acquisition approaches and characteristic differences of multi-source aerodynamic data, including engineering estimation, CFD simulation, wind tunnel testing, and flight testing, are introduced, along with typical surrogate modeling methods such as response surface, Kriging, radial basis function, support vector regression, and neural networks. Second, the fusion framework of multi-fidelity surrogate modeling is elaborated, including parallel weighting and hierarchical collaboration strategies, with discussions on the application of CoKriging, Co-RBF, and other methods in cross-fidelity data fusion. On this basis, intelligent modeling methods including sequential adaptive modeling, surrogate-assisted evolutionary optimization, and transfer learning are highlighted, clarifying their advantages over traditional methods in terms of sample efficiency, global search capability, and knowledge reuse. Combined with three representative problems—optimization design, guidance and control, and trajectory optimization—this paper illustrates how intelligent modeling supports efficient design and autonomous control of aerospace vehicles through technologies such as deep learning surrogates, Bayesian optimization, reinforcement learning, and physics-informed neural networks. Finally, future trends are discussed from both theoretical and engineering perspectives, identifying physics-data deep fusion, uncertainty quantification, model interpretability, in-flight real-time correction, and digital twin as key research directions, providing references for subsequent research and engineering practice in multi-source data intelligent modeling of aerospace vehicles.
Analysis and implications of the engineering development of foreign combined cycle engine
Cheng Wenwang;Li Yun;He Peng;Tian Tao;The combined cycle engine is a new type of propulsion system that organically combines different engine forms in terms of thermal cycle and structural layout. It can fully leverage the performance advantages of each engine unit and has the characteristics of a wide working range, strong task adaptability, and excellent comprehensive performance. It is an important development direction for future aerospace engine.The principle and key technologies of typical combined cycle engines such as turbine-based combined cycle, rocket-based combined cycle, air turbine rocket, three-combination engine, and pre-cooled engine are summarized. The research progress in engineering aspects in recent years by major countries and regions is analyzed. The future development trends are predicted, and suggestions for future development in strategic planning, organizational management, test facilities, funds, and talents are put forward.
Airborne power generation systems for hypersonic cruise vehicles: A review of development and research status
Liu Yiming;Tan Jianguo;Zhang Dongdong;Kuai Zihan;Advanced airborne power generation systems are one of the most effective solutions to meet the onboard power demand of hypersonic cruise vehicles during long-endurance flights. This paper systematically reviews the recent research progress on such systems applied to hypersonic cruise vehicles, covering their working principles, technological developments, and performance characteristics. On this basis, the advantages and challenges of different airborne power generation systems in terms of their development and application are analyzed in detail, and their future development directions and application scenarios are summarized. Finally, the paper provides an outlook on the future trends of airborne power generation systems in three key research areas: high power capacity, lightweight design, and high efficiency.
Review on flow and heat transfer of film cooling in thrust chambers
Ma Xingyu;Liu Di;Wu Penghui;Chen Jian;Lin Qingguo;Shanghai Institute of Space Propulsion;As an important thermal protection method for liquid rocket engines, liquid film cooling plays a significant role in the thermal protection of engine thrust chambers due to its notable advantages such as simple structure and high cooling efficiency. The flow and spreading of the liquid film, the heat transfer and phase change processes, and the interaction between the liquid film and the high-temperature gas all significantly influence both the cooling effectiveness and the engine-specific impulse. This paper reviews the current state of research on liquid film cooling both domestically and internationally. It systematically synthesizes the existing literature on this subject, addressing key areas such as the formation and spreading of liquid films, the entrainment of liquid films by mainstream flow, as well as heat transfer and phase change within the liquid films. The limitations of current research are identified and future directions for research are proposed, with particular emphasis on the interference flow of liquid films in multiple jets, the interaction between the main stream and liquid films, and the boiling heat transfer of liquid films. This review focuses on the flow and heat transfer phenomena of liquid film cooling involving typical propellants such as hydrazine derivatives, hydrocarbons and liquid oxygen. By systematically analyzing the existing research, it provides a theoretical reference for the thermal protection of engine thrust chambers.
Research and application progress of aerogel materials in multidiscipline
Yu Jiafu;Gao Yang;Zhang Shizhong;Zhang Wanlin;Lei Chaoshuai;Huang Hongyan;Li Wenjing;Aerospace Institute of Advanced Material&Processing Technology;Aerogel is a unique nanoporous material, characterized by ultra-low density, large specific surface area and low thermal conductivity, which has attracted extensive attention and research in multi-fields. Here the latest research progress and application prospects of aerogel in multi-fields are reviewed. Aerogel shows excellent performance in high temperature insulation, electromagnetic wave absorption, wound healing, tissue engineering, fuel cells, supercapacitors, CO2 capture, seawater desalination, waste gas and wastewater treatment, industrial thermal insulation and so on. The great achievements of aerogel provide new material schemes for promoting the transformation of energy utilization and environmental governance to help achieve the carbon peaking and carbon neutrality goals, and hold significant importance in promoting the upgrading of high-performance biomedical and sensing materials with broad development prospects. Solving the production and processing problems of low-cost and high-quality aerogel and its composite can facilitate the large-scale practical application of aerogel and create huge economic benefits.
Research progress on key technologies of autonomous landing for shipborne vertical take-off and landing unmanned aerial vehicles
Liu Zhongchen;Peng Yiming;Hu Xionglong;Zhang Ming;Chen Xinmin;Wei Xiaohui;Shipborne vertical take-off and landing unmanned aerial vehicles (VTOL UAVs) offer significant advantages， including runway independence， excellent low-altitude and low-speed performance， stable hovering capability， and high mission flexibility. However， the autonomous landing process on naval vessels is characterized by a high accident rate and substantial risks， representing a critical phase in the maritime application of shipborne VTOL UAVs. This paper briefly outlines the technical characteristics distinguishing shipborne VTOL UAVs from their land-based counterparts. It analyzes the technical challenges encountered during the three phases of autonomous landing: return approach， descent and touchdown， and aircraft-ship locking. The study focuses on reviewing key technologies such as autonomous landing guidance， landing platform stabilization， and rapid aircraft-ship securing. Future development trends are also projected. Key directions for advancement include multi-source data fusion-based landing guidance technology， multifunctional integrated landing platform technology， and intelligent adaptive take-off and landing system integration technology.
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Chinese Library Classification
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2022-03-24Journal of Propulsion Technology
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