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Numerical Simulations for Spacecraft Catastrophic Disruption Analysis

While the vast majority of space debris still stems from explosion events of satellites and rocket upper stages, current forecasts state that collisions, such as those between the Cosmos 2251 and Iridium 33 satellites in 2009, will play a dominant role in the mid-term future when a critical spatial density of satellites has been reached. In order to assess the risks emanating from space debris, a deeper understanding of the formation and residence time of breakup debris in orbit is essential for operational activities.

Germany

15/716-b

Fraunhofer Gesellschaft
Application of the FAIR facility to space radiation research

The radiation environment in space has severely adverse effects on humans, electronics and materials. The most challenging part of the environment for our understanding of the effects are the highly charged highly energetic (HZE) particles. This study looks at the possibilities FAIR offers for space radiation research. There are two main parts: first the open issues and needed research in space radiation involving heavy ions of high energy and second the requirements a facility for this research should meet checked against the possibilities at FAIR.

Germany

13-S-02

Fraunhofer Gesellschaft
Detection of microparticle impacts on spacecraft via their plasma effects

Microparticles are one of the most unknown components of the space environment. Their observation and investigation is complicated by their small size and their high velocity. When impacting on a spacecraft surface, a plasma cloud is generated by shock wave and surface ionization processes. This transient cloud of vaporized and ionized particle and surface material, referred to as impact plasma, rapidly expands to the meter scale within microseconds, thereby interacting with spacecraft surface components.

Germany

11-147

Fraunhofer Gesellschaft
Simplified models for spacecraft vulnerability assessments in early design phase

The space debris environment poses an ever-increasing risk to spacecraft particularly in low Earth orbits (LEO). Due to limitations of existing vulnerability models, increasing the overall survivability of a spacecraft by enhancing the protection of sensitive parts was not possible in the past. The aim of this study was to adopt and develop methodologies that allow increasing the survivability of a spacecraft by varying individual parameters, e.g. the position of sensitive components or the thickness of component casings.

Germany

30

Fraunhofer Gesellschaft
ASSIST – Assessment and Evaluation Tools for Telemedicine
Germany

2009-53

EMPIRICA GESELLSCHAFT...
Space and Terrestrial Common R&D approach to support space exploration
Germany

2009-34

Fraunhofer Gesellschaft
Metamaterials for Optical and Photonic Applications in Space
Germany

2010-22

Fraunhofer Gesellschaft

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