SFB 259: High Temperature Problems of Reusable Space Vehicles

SFB 259：可重复使用航天器的高温问题

• 批准号: 5475343
• 金额: --
• 依托单位: Universität Stuttgart
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 1990
• 资助国家: 德国
• 起止时间: 1989-12-31 至 2002-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5475343?language=en
• 关键词: SFB; 259; Temperature; Problems; Reusable

The objective of this collaborative research centre is to acquire new basic knowledge and develop investigation methods in the field of high temperature problems of future reusable space vehicles, defined as aerodynamically sustained transport devices equipped with air-breathing engines and operating in the hypersonic range. The capacibility of these transport devices to take off and land horizontally and therefore their reusability requires one or two-staged winged flight vehicles which cover all flight ranges up to Mach 25 between take off, earth orbiting and landing. Thereby during a hypersonic flight, especially during the reentry of the upper stage, extremely high temperatures are encountered, posing problems to which solutions have to be described and investigated.For the realization of the entire transport system it is therefore essential that exact information is acquired on the interaction of the hot flow with the structure made from high temperature materials. The work of the collaborative research centre 259 places its emphasis primarily on this subject.Materials, construction methods and hot structures as well as their realistic computation and testing are critical factors for the development of future space vehicles. In particular the behaviour of non-metallic compound materials C/C and C/SIC (carbon fibre reinforced carbon and carbon fibre reinforced sillicon carbide) at the encountered high temperatures is investigated.To achieve a reliable control of the thermal loads, it is essential for the projected missions to have improved diagnostic methods under reentry conditions and detailed knowledge of the material behaviour, combustions processes and the operation procedures. These complex problems are solved by a close cooperation between the scientists of the disciplines concerned.

该合作研究中心的目标是在未来可重复使用的空间飞行器的高温问题领域获得新的基本知识并制定调查方法，这种飞行器被定义为配备吸气式发动机并在高超音速范围内运行的空气动力学维持的运输装置。这些运输装置水平起飞和着陆的能力以及因此它们的可重复使用性要求一级或二级有翼飞行器，其在起飞、绕地球轨道运行和着陆之间覆盖高达25马赫的所有飞行范围。因此，在高超声速飞行过程中，特别是在末级再入过程中，会遇到极高的温度，这就提出了必须描述和研究解决方案的问题。因此，为了实现整个运输系统，必须获得热流与高温材料制成的结构相互作用的准确信息。第259号合作研究中心的工作主要侧重于这一主题，材料、建造方法和热结构及其实际计算和测试是未来航天器开发的关键因素。特别是研究了非金属复合材料C/C和C/SIC（碳纤维增强碳和碳纤维增强碳化硅）在所遇到的高温下的性能，为了实现对热负荷的可靠控制，所计划的飞行任务必须改进再入条件下的诊断方法，并详细了解材料性能、燃烧过程和操作程序。这些复杂的问题通过相关学科科学家之间的密切合作得以解决。