大型飞机发动机的发展现状和关键技术分析

对军民用大涵道比涡扇发动机的现状和发展趋势等进行了阐述,从国家大型飞机工程的战略目标、大型飞机发动机的重要性和市场前景等方面,对我国大涵道比涡扇发动机的需求、现状和差距进行了初步分析,简要介绍了我国大涵道比涡扇发动机的总体方案,提出了发展我国大涵道比涡扇发动机的主要关键技术,并分别从大涵道比涡扇发动机、国际合作、材料工艺试验条件建设等方面,简要论述了关键技术解决途径与措施建议.      

高空长航时飞翼无人机用涡扇发动机关键技术

自无人机诞生并应用于实战以来,无人机技术得到了迅猛的发展。随着各领域高科技技术的进步,战场环境趋于复杂,作战任务向高危对抗战场拓展,高空长航时飞翼无人机成为各国研究的热点。本文论述了高空长航时飞翼无人机对涡扇发动机的要求,结合航空发动机基本原理分析了关键设计参数对涡扇发动机性能的影响,总结了高空长航时飞翼无人机用涡扇发动机面临的关键问题及研究进展,对于高空长航时飞翼无人机用涡扇发动机的选型及适应性改进设计具有重要的参考价值。     

论现代教育技术实验设备的配置

当今世界,知识经济的迅速崛起,加速了教育技术现代化的步伐,为教学手段现代化创造了条件。为了抢占现代教育的制高点,应充分认识和理解现代教育技术的深刻内涵。现代教育技术实验设备的正确配置是有效发挥现代教育技术的前提。结合民航行业的特点,从培养更多更好的民航精英的目的出发,就现代教育技术设备配置进行了探讨。     

空间站机械臂关键技术研究

我国空间站机械臂承担舱段转位、辅助对接、舱外设备安装及维修等关键任务,具有大负载、高精度、高可靠等特点,涉及机、电、热、光、控等多学科技术交叉耦合,高度集成且研制难度巨大。在分析、比较国内外机械臂的基础上,提出了我国空间站七自由度冗余、分布式控制、位置可移动的机械臂技术方案,并阐述了高精度伺服控制、多约束路径规划等八类关键技术研究成果。空间站机械臂已具备了工程化实施条件,为我国空间站工程建设奠定了基础。     

第五代空空导弹的特点及关键技术

空空导弹自问世至今已发展了四代,空战的需求和科学技术的不断进步推动着空空导弹的更新换代.目前各军事强国均在进行第五代空空导弹的探索和研究.本文分析了未来空中威胁和空战的特点,介绍了国外新一代空空导弹发展计划,从未来空战作战模式、作战环境、目标特性等方面提出了对第五代空空导弹的军事需求,探讨并分析了第五代空空导弹应具备的...     

从遥感卫星到卫星遥感 ——智联遥感系统及关键技术方向

近年来,遥感卫星正在经历系统规模、数据量、应用场景等方面的爆炸式增长。传统遥感卫星设计孤立,使其协同性不足、响应速度慢,难以体系化应用。提出了一种由管理层、感知层、传输层、处理层、信息层、应用层等多层结构组成的智联遥感系统架构,并梳理了基于区块链、人工智能、软件定义、大数据、云计算、物联网、5G等新兴技术的关键技术方向,以突破遥感卫星系统的联合规划、联合响应、联合处理的多元协同能力瓶颈,为实现从遥感卫星至卫星遥感的全链条革新奠定技术基础。     

中国下一代运载火箭结构技术发展方向与关键技术分析

结构是运载火箭的"脊梁",主要承担火箭发动机推力传递、燃料贮存等功能,并为有效载荷、控制、测量等系统及单机设备提供安装和保护。对国外运载火箭结构技术发展现状进行分析,结合未来我国运载火箭的研制发展需求,展望我国下一代运载火箭结构技术发展方向,提出支撑我国下一代运载火箭结构的关键技术,为我国运载火箭结构技术的发展路线探索和战略规划提供参考。     

Earth remote sensing as an effective tool for the development of advanced innovative educational technologies

Current educational system is facing a contradiction between the fundamentality of engineering education and the necessity of applied learning extension, which requires new methods of training to combine both academic and practical knowledge in balance. As a result there are a number of innovations being developed and implemented into the process of education aimed at optimizing the quality of the entire educational system. Among a wide range of innovative educational technologies there is an especially important subset of educational technologies which involve learning through hands-on scientific and technical projects. The purpose of this paper is to describe the implementation of educational technologies based on small satellites development as well as the usage of Earth remote sensing data acquired from these satellites. The increase in public attention to the education through Earth remote sensing is based on the concern that although there is a great progress in the development of new methods of Earth imagery and remote sensing data acquisition there is still a big question remaining open on practical applications of this kind of data. It is important to develop the new way of thinking for the new generation of people so they understand that they are the masters of their own planet and they are responsible for its state. They should desire and should be able to use a powerful set of tools based on modern and perspective Earth remote sensing. For example NASA sponsors “Classroom of the Future” project. The Universities Space Research Association in United States provides a mechanism through which US universities can cooperate effectively with one another, with the government, and with other organizations to further space science and technology, and to promote education in these areas. It also aims at understanding the Earth as a system and promoting the role of humankind in the destiny of their own planet. The Association has founded a Journal of Earth System Science Education. Authors describe an effective model of educational technology developed in the Center for Earth Remote Sensing of Bauman Moscow State Technical University and based on scientific and educational organizations integration in the field of applied studies. The paper also presents how students are being trained to acquire and process satellite imagery data from Terra and Aqua satellites. It also reveals the results of space monitoring for Russia's ecologically complex regions conducted by Bauman Moscow State Technical University students in cooperation with specialists from the Laboratory for Aerospace Methods of Moscow State University named after M. Lomonosov.     

航空航天复合材料绿色化发展浅析

简述了航空航天复合材料绿色化技术的研究进展,包括复合材料的绿色化设计、绿色材料、绿色制造,以及回收再利用等技术,探讨了复合材料绿色化技术的发展前景。     

民用高速旋翼飞行器发展战略分析及关键技术展望

面向直升机高速化的发展趋势,总结了国外高速旋翼飞行器的发展历程,开展了高速旋翼飞行器与直升机、通航飞机、公路、铁路等交通运输工具的效能仿真对比,基于潜在的民用市场需求,综合分析了高速旋翼飞机器在交通运输系统和应急救援体系中的优势与劣势。结果表明,民用高速旋翼飞行器在中国具有明确的战略发展定位,一方面可作为交通体系干支通、全网联的重要节点,以突出的任务效能融入交通运输应用体系;另一方面,面向中远程应急救援的需要,可满足敏捷救援体系响应速度的需求,填补现有直升机应用领域的空白。最后,针对重点发展构型,展望了中国未来民用高速旋翼飞行器的关键技术。