The Confederation of European Aerospace Societies — CEAS supporting people in aerospace

The aerospace societies of 8 European countries — France, Germany, Italy, The Netherlands, Spain, Sweden, Switzerland and The United Kingdom - ten years ago formed a Confederation to help member societies and their 25 000 individual members through collaborative efforts: ‘Confederation of European Aerospace Societies’ - CEAS. What is its history? What are its objectives? What is its present status and perspectives for the future? At the time of European mergers in aerospace industry, is the CEAS an opportunity for Europe?     

The european aerospace industry: a key sector at the cross-roads

The present article is the text of the speech given by Javier Alvarez Vara, on the occasion of the AECMA (European Association of Aerospace Industries) Evening Lecture, 15th September 1998 in Brussels.     

News from AECMA: Aerospace is a prerequisite for Europe's security and defence policy

At its Annual Convention in Biarritz on 6 October 2000, AECMA, the European Association of Aerospace Industries, developed the theme of Europe's Security and Defence Policy with participation by high level representatives from governments and industry.     

An aerospace MBA,why?

At the heart of a world class aerospace complex located in an exceptional industrial, academic and research environment, the Toulouse Business School was bound to devote its management expertise to the service of aerospace companies. It has now completed the launch of the Aerospace MBA, a highly selective and truly international programme, designed for candidates with high potential executive skills.     

BAe SYSTEMS - a new world class defence and aerospace company

British Aerospace (BAe) and Marconi Electronic Systems (MES) have successfully merged on 30 November 1999 as BAE SYSTEMS, creating a world-class company with the financial strength, large-scale capability and global reach to take on the most challenging aerospace and defence projects.     

实时数据驱动的生产线状态监控与效能评估技术研究

数字化车间的建设是航天产品制造企业实现智能制造的关键环节,为了实现车间的自主决策和自组织生产,设备互联、自动感知、虚拟监控以及实时分析等技术已经在工业界得到了广泛的重视。结合我国航天领域首个数字化车间建设项目,利用虚拟现实(VR)技术与车间信息通信技术(ICT),研发车间现场实时数据的采集与管理、生产线效能评估建模、人机交互式三维/二维集成可视化等功能模块。通过与其他信息系统如MES等进行数据集成,构建基于实时数据驱动的生产线运行状态监控平台,实现透明化生产,提高生产运营管理水平。     

结构复合材料修补技术研究进展

综述了国内外结构复合材料修补技术的最新研究进展,对修补影响因素进行了分析,介绍了结构复合材料修补技术在航天领域中的应用.     

Coronal Mass Ejections over Solar Cycles 23 and 24

This paper presents the results of in-orbit commissioning of the first Czech technological CubeSat satellite of VZLUSAT-1. The 2U nanosatellite was designed and built during the 2013 to 2016 period. It was successfully launched into Low Earth Orbit of 505 km altitude on June 23, 2017 as part of international mission QB50 onboard a PSLV C38 launch vehicle. The satellite was developed in the Czech Republic by the Czech Aerospace Research Centre, in cooperation with Czech industrial partners and universities. The nanosatellite has three main payloads. The housing is made of a composite material which serves as a structural and radiation shielding material. A novel miniaturized X-Ray telescope with lobster-eye optics and an embedded Timepix detector represents the CubeSat’s scientific payload. The telescope has a wide field of view. VZLUSAT-1 also carries the FIPEX scientific instrument as part of the QB50 mission for measuring the molecular and atomic oxygen concentration in the upper atmosphere.

     

高性能橡胶密封材料及其在航天工业上的应用

系统介绍了航天材料及工艺研究所55年来研制的高性能橡胶密封材料的主要种类、牌号及其物理机械性能,并通过若干典型应用实例说明其在我国航天工业上的应用现状.     

JOURNAL OF AEROSPACE POWER Published quarterly by The Chinese Society of Aeronautics and Astronautics

The Journal of Aerospace Power is a leading publication of its kind in China devoted to the advancement of the science and technology of aerospace power.It provides a common medium through which academic and industrial researchers and designers can communicate results, review progress and identify requirements for further work in this increasingly significant field.      

Impact of aerospace on computers

Electronics and computers have long been associated with aviation, defense and aerospace. Many aerospace advances would have been impossible without digital computers, and digital computers would not have progressed as rapidly without aerospace. In some sense you may thank aerospace for the computer on your desk and Internet in your life. DoD and NASA programs drove computer technology for the first 25 years, but in the 80s the primary thrust transitioned to the commercial sector. Aerospace computation requirements have driven the development of many electronic components such as transistors, ICs and memory technology. Advances in memory technology progressed from delay lines to electrostatic tubes to magnetic cores and now solid-state memory. As the need for number crunching grew, computers transitioned from batch processing, time-sharing, real-time computing, networking to the ubiquitous PC and Internet. How far is it from your hand-held PDA to the nano computer?     

Research on Auto-detection for Remainder Particles of Aerospace Relay Based on Wavelet Analysis

Aerospace relay is one kind of electronic components which is used widely in national defense system and aerospace system. The existence of remainder particles induces the reliability declining, which has become a severe problem in the development of aerospace relay. Traditional particle impact noise detection (PIND) method for remainder detection is ineffective for small particles, due to its low precision and involvement of subjective factors. An auto-detection method for PIND output signals is proposed in this paper, which is based on direct wavelet de-noising (DWD), cross-correlation analysis (CCA) and homo-filtering (HF), the method enhances the affectiv-ity of PIND test about the small particles. In the end, some practical PIND output signals are analysed, and the validity of this new method is proved.     

Cryogenic rocket engine research within the National Technology Program TEKAN at the German Aerospace Center

The paper presents the highlights and a summary report of the research activities on cryogenic propulsion at the German Aerospace Center in Lampoldshausen within the National Technology Program. The research is conducted in cooperation with European industries and research establishments. The German National Technology Programme on Cryogenic Rocket Engines TEKAN, which is presented here, is a joint DLR/Astrium GmbH project with the aim to provide key technologies for future cryogenic rocket engines. The research work at the German Aerospace Center is focused on the injector, combustor, and nozzle technology and related topics.     

An Overview of Performance Characteristics, Experiences and Trends of Aerospace Engine Bearings Technologies

In this paper, the operating conditions, technical requirements, performance characteristics, design ideas, application experiences and development trends of aerospace engine bearings, including material technology, integration design and reliability, are reviewed. The development history of aerospace engine bearing is recalled briefly at first. Then today＇s material technologies and the high bearing performances of the bearings obtained through the new materials are introduced, which play important roils in the aeroengine bearing developments. The integration design ideas and practices are explained to indicate its significant advantages and importance to the aerospace engine bearings. And the reliability of the shaft-bearing system is pointed out and treated as the key requirement with goals for both engine and bearing. Finally, as it is believed that the correct design comes from practice, the pre-qualification rig testing conducted by FAG Aerospace GmbH ＆ Co. KG is briefly illustrated as an example. All these lead to the development trends of aerospace engine bearings from different aspects.     

80 years education of aerospace science and technology in Tsinghua University

The development of aerospace science and technology largely relies on the education and academic contribution of students in universities covering aerospace science and technology. The School of Aerospace Engineering of Tsinghua University, with a history of eighty years since the set-up of its Department of Aeronautical Engineering in 1938, graduated 5273 undergraduate students, 1939 master students and 931 Ph.D. students. This paper provides an overview and analysis of the data related to undergraduate, master and Ph.D. students of this school. These data include the historical evolution of number of students and the actual status of students like their various interests and academic performance. The data and information shared in this paper may be useful for comparative study and for those who need primitive data to study relevant issues such as mental health of students, promotion of gender balance and educational improvement.     

New horizons for aerospace students: an international master of science

Aerospace engineering makes high demands of its workforce. It brings together complex disciplines - mechanical, chemical and electrical engineering - in the development of huge, multinational and expensive projects. Firms need a new kind of employee with new international qualifications. A group of universities from the EU and the USA has joined forces to create a learning environment to provide these: an international MSc in aerospace engineering.     

Overview of the Czech Republic research and technology development activities

The first part of the article briefly introduces the Association of Aviation Manufacturers of the Czech Republic (ALV) and its international cooperation. The second part describes the general organization and funding of R&TD in the Czech Republic and gives some examples of aeronautical developmental and research activities in the Czech Republic. The final part shows general possible ways to facilitate the international collaboration with the Czech aviation industry represented by ALV.     

显微CT技术在航天材料中的应用

文摘针对目前大型工业CT分辨率受限的问题,本文简述了显微CT技术的概念、原理、技术优势,通过显微CT技术对典型航天材料的检测实例,研究了显微CT技术在小尺寸的航天材料检测中的优势。结果表明,显微CT技术能够发现材料中微米级缺陷,能够观察材料中微小缺陷在空间的形貌及分布,并且能通过图像处理软件统计缺陷的尺寸分布,为航天材料无损检测研究提供了新思路。     

美国高超声速涡轮基组合循环发动机的进展及分析

旨在为未来空天动力技术研究和产品研制提供参考与借鉴。综述了美国高超声速涡轮基组合循环(TBCC)发动机的进展,重点对与涡轮发动机有关的预研计划进行详细描述,如国家空天飞机(NASP)计划、高速推进评估(Hi SPA)计划、猎鹰组合循环发动机试验(Fa CET)计划等。总结与归纳了TBCC发动机的研究发展的特点:TBCC发动机一直是高超声速飞行器研究的关键技术;目前涡轮发动机的首选是现有涡轮发动机改进,未来可能选择正在预研的高速涡轮发动机或自适应发动机;冲压发动机和模态转换技术已经取得明显进展,但还需长期深入验证。     

航天轴承精度寿命研究现状及展望

根据转速和工作温度范围,航天轴承可选择固体润滑、油或脂润滑。航天轴承在轻载条件下工作,其失效一般是由于润滑剂损失、退化引起润滑膜破坏,磨损加剧导致轴承精度丧失。航天轴承服役期考量的是精度寿命,即磨损寿命。对不同润滑工况下航天轴承磨损寿命的影响因素、失效模式、失效准则、磨损寿命模型、加速寿命试验及基于性能退化的剩余寿命预测进行了概述,总结了目前研究中存在的不足,并提出了值得关注和需要进一步研究的方向。