地空导弹防太阳辐射的论证、设计与试验

介绍了太阳辐射的基本概念、能量分布情况及其对地空导弹武器装备的影响，给出了论证地空导弹武器环境适应性时太阳辐射强度取值的依据、降低太阳辐射影响的措施和太阳辐射试验的参数取值依据以及对试验设备的要求，可供从事环境适应性论证、设计与试验工作的人员参考。     

航天遥测系统集成式信号采集装置设计

针对遥测系统的小型化需求,设计集成式信号采集装置,用于多类型传感器信号的集中变换处理,并将采集到的数据汇总后上传遥测传输系统。集成式信号采集装置以模块化、可扩展为设计思想,按功能划分为电源变换模块、数据综合处理模块和传感器信号变换模块,通过模块组合、软件接口的方式适应不同型号应用需求,同时兼顾航天产品环境适应性能。集成式信号采集装置已成功应用于多个型号任务,具有体积小、功耗低、质量轻、使用灵活等特点。     

An intelligent control method for a large multi-parameter environmental simulation cabin

The structure and characteristics of a large multi-parameter environmental simulation cabin are introduced.Due to the diffculties of control methods and the easily damaged characteristics,control systems for the large multi-parameter environmental simulation cabin are diffcult to be controlled quickly and accurately with a classical PID algorithm.Considering the dynamic state characteristics of the environmental simulation test chamber,a lumped parameter model of the control system is established to accurately control the multiple parameters of the environmental chamber and a fuzzy control algorithm combined with expert-PID decision is introduced into the temperature,pressure,and rotation speed control systems.Both simulations and experimental results have shown that compared with classical PID control,this fuzzy-expert control method can decrease overshoot as well as enhance the capacity of anti-dynamic disturbance with robustness.It can also resolve the contradiction between rapidity and small overshoot,and is suitable for application in a large multi-parameter environmental simulation cabin control system.     

Microstructure and high-temperature oxidation behavior of plasma-sprayed Si/Yb2SiO5 environmental barrier coatings

An environmental barrier coating (EBC) consisting of a silicon bond coat and an Yb₂SiO₅ top-coat was sprayed on a carbon fibers reinforced SiC ceramic matrix composite (CMC) by atmospheric plasma spray (APS). The microstructure of the coating annealed at 1300 °C and its high-temperature oxidation behavior at 1350 °C were investigated. The significant mass loss of silica during the plasma spray process led to the formation of Yb₂SiO₅ and Yb₂O₃ binary phases in the top-coat. Eutectics of Yb₂SiO₅ and Yb₂O₃ were precipitated in the top-coat, and channel cracks were formed in the top-coat after 20 h annealing because of the mismatch between the coefficients of thermal expansion (CTEs) of Yb₂SiO₅ and the SiC substrate. The EBC effectively improved the oxidation resistance of the CMC substrate. The channel cracks in the Yb₂SiO₅ top-coat provided inward diffusion channels for oxygen and led to the formation of oxidation delamination cracks in the bond coat, finally resulting in spallation failure of the coating after 80 h oxidation.     

New concepts for the avoidance or utilisation of methane in life support systems

Due to high resupply costs, especially for long-duration stays in space habitats beyond low earth orbit, future manned space missions will require life support systems (LSS) with a high degree of regenerativity. Possible ways to overcome the waste of resources and to save on resupply mass are therefore of major interest for the development of next generation environmental control and life support systems.     

Fostering links between environmental and space exploration: the Earth and Space Foundation

The links between Earth and space exploration occur across a broad spectrum, from the use of satellite technology to support environmental monitoring and habitat protection to the study of extreme environments on Earth to prepare for the exploration of other planets. Taking the view that Earth and space exploration are part of a mutually beneficial continuum is in contrast to the more traditionally segregated view of these areas of activity. In its most polarized manifestation, space exploration is regarded as a waste of money, distracting from solving problems here at home, while environmental research is seen to be introspective, distracting from expansive visions of exploring the frontier of space. The Earth and Space Foundation was established in 1994 to help further mutually beneficial links by funding innovative field projects around the world that work at the broad interface between environmental and space sciences, thus encouraging the two communities to work together to solve the challenges facing society. This paper describes the work of the foundation and the philosophy behind its programmes.     

Initial design of laboratories for sustainable habitation

An effective and self-sustainable artificial habitat design is essential for human spaceflight and expansion of mankind into orbit or towards other celestial bodies. There are two approaches that need to be implemented in future sustainable habitats: the use of re-cycling technologies in order to gain experience in closed-loop processes and the primary production of resource materials using In Situ Resource Utilisation (ISRU) principles. Various products will be provided and, where applicable, recycled in such a system taking into account basic human factors requirements such as crew work load capacity, safety and well-being, namely:     

飞船环控生保系统主要故障模型分析及飞控对策

研究了载人飞船环控生保系统主要故障模型及飞控对策，根据系统工作原理建立了影响飞行安全的主要故障模型，如舱体泄漏、气源消耗过量和CO2净化失效等，应用该类模型对飞行数据进行实时处理，判断或预测故障，同时给出飞控对策。该方法已成功应用于首次载人飞行。     

一体化建模和仿真环境（IMASE）

一体化建模／仿真环境能为用户提供友好的仿真建模环境，交互功能强的仿真运行环境和功能充分的结果分析环境，从而使仿真试验全过程都能方便地进行。ＩＭＡＳＥ是在ＭＰＳＥ或ＹＦＳＩＭ／ＹＦＲＩＯ的基础上，扩建仿真数据库和模型单元库，并且通过它们的生成源程序和增强结果分析功能，从而使运载火箭控制系统仿真无论在ＹＨ—Ｆ１上，还是在ＹＦ—Ｆ２上，都有一个一体化建模／仿真环境。     

Globalstar星座与意大利的小卫星中心

介绍了意大利 Alenia 航空航天公司为生产 Globalstar 卫星而建立的小卫星中心及其环境试验概况。