The Dark Matter Particle Explorer (DAMPE) is the first high energy detector satellite in China, whose physics goal is to find evidence of the existence of dark matter particles by investigating the composition and energy spectra of primary cosmic rays, especially those for electrons, positrons and gamma rays, over the dynamic range from 5 GeV to 10 TeV. DAMPE is a satellite launched by China with the largest payload ratio, where the payload is composed of a BGO (Bismuth Germanate Oxide) Calorimeter, a Plastic Scintillator Detector, a Silicon Tungsten Tracker and a Neutron Detector. This paper introduces the technical scheme of DAMPE, including requirement analysis, composition, technical innovation, on-orbit status and prospect of development for the future.

 New program was proposed in LM-6 rolling control technology that using high-pressure staged combustion gas. Launch vehicle rolling control by just one engine was realized. Under the limit of the rolling control moment of the launch vehicle, a new attitude dynamic model is established. Interference source and how to reduce the effect was analyzed, and method of designing a pre-compensated robust controller was proposed. Simulation and flight results showed that the attitude dynamic model established and the pre-compensation robust controller proposed in this 
paper could solve the key problems with a strong coupling attitude controller, and realize high quality and high reliability control in wind areas, and improve the capability of the launch vehicle.

This paper focused on the fundamental and applied research of turbulent flows encountered in the hypersonic flight of aerospace vehicles, which take place in the boundary layer and mixing layer. As to the plate boundary layer, LES approach has been used to simulate the flows over compression corners and incident shock waves, revealing that turbulent flows would significantly inhibit the boundary layer separation caused by shock wave-boundary layer interaction (SWBLI). The boundary layer transition over a circular cone has been analyzed through stability analysis and wind-tunnel test, by which the angle-of-attack effect in case of small angle of attack has been studied. Non-linear evolution process and secondary instability structure in the supersonic mixing layer (Mc=0.5) were initially figured out through the study of mixing layer, and knowledge of the flow control mechanism of the boundary layer and mixing enhancement mechanism of the mixing layer has been obtained through this research. Artificial boundary-layer transition technique based on subharmonic resonance has been proposed and applied to the flow control in a scramjet inlet, inhibiting the flow separation of the boundary layer while improving the inlet performance. To guarantee the mixing of kerosene and supersonic airflow in the scramjet combustor, the mixing enhancement method based on subharmonic resonance has been adopted and a concept of combustor with smooth wall and low internal drag has been proposed for ignition and stable combustion. Finally, future turbulence research and technological development of aerospace vehicles is predicted.

According to the different types and characteristics of satellite fault, a kind of fault diagnosis method is proposed, which integrates multivariate threshold, model-based and fault tree-based method. In order to optimize the fault diagnosis method, it takes the advantages and remedy of a defect with other methods. This can diagnose many kinds of satellite fault occurring in the on-orbit phase rapidly and accurately. Besides, it can analyze the damage degree of the failure and establish the measures to eliminate the failure.

The origin, formation and evolution of the systems engineering theory accompanied QIAN Xuesen’s whole life. The systems engineering theory is the concentrated reflection of QIAN’s achievements and theory in all aspects. From returning to China to pioneer China’s space industry, creating a new management mode of “one overall design department, two command lines”, publishing Organization and Management Technology: Systems Engineering, to proposing the theory of Open Complex Giant System (OCGS) and the theory of Metasynthetic Wisdom, all these mark the formation of the Chinese school of systems engineering. Guided by QIAN’s academic ideas, various major Chinese space programs have been implemented successfully which verified the fact that the systems engineering is scientific. The systems engineering has been applied to different fields of the national economy and has a development process with the distinguished characteristics of Chinese systems science. On one hand, the systems engineering is put forward deeply along the traditional systems engineering thought and theory; on the other hand, a batch of innovations that break the traditional shackles have occurred, making the Chinese systems engineering unique and outstanding compared with foreign counterparts .

This paper reviews the recoverable satellites China has developed over the past forty years. The main missions, technical specifications, scientific and technical experiments of these satellites, including the SJ-10 scientific experiment satellite launched on April 6, 2016 are introduced. Recommendations for future technical upgrades for recoverable satellites are also proposed in the paper.

Space is a high-tech field integrating materials, electronic information, manufacture, energy, medicine and other disciplines. A number of disruptive technologies in various fields will have an important influence in areas such as space industry, scientific research on space and even military space. This article focuses on disruptive technologies exerting enormous influence in the space field based on the qualitative and quantitative research of disruptive technologies. The research and application for disruptive space technology is expected to greatly improve the efficiency of space system, significantly reducing research cost, and to promote a great improvement of space technology level.