Space Archive - Aerospace & Advanced Composites GmbH – Consulting, Testing, Development, Research

Cryogenic Materials Testing in Aerospace Engineering
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Cryogenic Materials Testing in Aerospace Engineering

Aviation, Energy, Industry, Space

Cryogenic Materials Testing in Aerospace Engineering

By Christoph Auner|2024-04-16T13:03:02+02:0016. April 2024|Aviation, Energy, Industry, Space|

In the dynamic world of aerospace engineering, innovation knows no bounds. As we push the boundaries of what's possible in aviation and space, one frontier that demands our attention is cryogenic materials testing. In this blog article, we delve into the fascinating realm of cryogenics and its crucial role in shaping the future of aerospace engineering, particularly in the development of electric and hydrogen-powered aircraft. Understanding Cryogenic Materials Testing Cryogenics, the study of materials at [...]

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Unveiling the Importance of Demisability Testing: Precision and Simplicity with Our Radiant Heater Service
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Unveiling the Importance of Demisability Testing: Precision and Simplicity with Our Radiant Heater Service

Space

Unveiling the Importance of Demisability Testing: Precision and Simplicity with Our Radiant Heater Service

By Volker Liedtke|2024-02-20T09:07:12+01:0020. February 2024|Space|

In the realm of re-entry testing, ensuring the safe disintegration of returning spacecraft parts is paramount. At AAC, we underscore the critical significance of demisability tests. These tests simulate the early stages of re-entry and indicate that components disintegrate already at high altitude during re-entry, mitigating potential damage and safeguarding the overall integrity of your mission. Discovering a Straightforward Solution for Precise Demisability Testing Our radiant heater service offers a simplified yet highly precise solution [...]

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Enhancing Satellite Resilience: The Practical Significance of Thermal Vacuum Bakeouts for MLI in Satellite Missions
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Enhancing Satellite Resilience: The Practical Significance of Thermal Vacuum Bakeouts for MLI in Satellite Missions

Space

Enhancing Satellite Resilience: The Practical Significance of Thermal Vacuum Bakeouts for MLI in Satellite Missions

By Gerald Schober|2024-02-14T09:22:29+01:0014. February 2024|Space|

Operating in the challenging environment of space, satellites contend with extreme temperature fluctuations, radiation exposure, and the vacuum of the cosmos. Essential for fortifying these satellites against such harsh conditions and ensuring their longevity, Multi-Layer Insulation (MLI) emerges as a key protective measure. This thermal insulation method, comprised of reflective foil layers separated by low-conductance spacer materials, plays a pivotal role in regulating temperature and maintaining the resilience of satellites in the unpredictable realm of [...]

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Outgassing of materials in vacuum
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Outgassing of materials in vacuum

Space

Outgassing of materials in vacuum

By Roland Holzbauer|2024-01-30T08:06:36+01:0030. January 2024|Space|

Outgassing of materials in vacuum is often treated neglectfully. Typically, only one side of the equation is considered, such as the loss of oil in a bearing. However, the potentially fatal consequences of oil resublimation onto an optical instrument may be ignored. - There is no one in space to wipe down a lens that has a hazy film of oil on it. As a rule of thumb, warm surfaces are more likely to outgas [...]

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The mysteries of slip rings
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The mysteries of slip rings

Consulting, Energy, Industry, Space

The mysteries of slip rings

By Roland Holzbauer|2023-11-20T14:52:05+01:0020. November 2023|Consulting, Energy, Industry, Space|

A slip ring (in electrical engineering terms) is a method of making an electrical connection through a rotating assembly. Slip rings, also called rotary electrical interfaces, rotating electrical connectors, collectors, swivels, or electrical rotary joints, are commonly found in all rotary systems with electrical connections of sensors and receptors. They are a common building block in terrestrial and space applications, e.g. wind turbines, computer tomography scanners, solar arrays in space and many more. Tribological characterization [...]

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Mikrostrukturanalyse bei AAC: Expertise in Werkstoff- & Bauteilanalyse
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Mikrostrukturanalyse bei AAC: Expertise in Werkstoff- & Bauteilanalyse

Aviation, Consulting, Energy, Industry, Space

Mikrostrukturanalyse bei AAC: Expertise in Werkstoff- & Bauteilanalyse

By Christian Jogl|2023-10-30T08:30:36+01:0030. October 2023|Aviation, Consulting, Energy, Industry, Space|

Die Charakterisierung von Materialien und Bauteilen auf makro- und mikroskopischer Ebene ermöglicht eine Vielzahl von verschiedenen Untersuchungen: • Identifizierung von Fehlermechanismen im Zuge von Schadensanalysen. • Qualifikation von neuen Produktionsprozessen und Oberflächenbehandlungen. • Beurteilung von verschiedenartigen Bauteilen (wie z.B. elektrische Kontakte, Komposit-Materialien, Faserverbundwerkstoffe, u.v.m.) • Chemische Analyse der Zusammensetzung von Proben (wie z.B. Struktur von Schichtsystemen). • Post-Test-Analyse nach mechanischen, tribologischen oder thermischen Tests, welche ebenfalls bei AAC durchgeführt werden. Wir legen nicht nur Wert [...]

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Cold welding under space and launch conditions
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Cold welding under space and launch conditions

Space

Cold welding under space and launch conditions

By Andreas Merstallinger|2023-11-24T17:10:08+01:0023. October 2023|Space|

A common failure mode seen during the testing and operation of spacecraft is termed ‘cold-welding’ (‘coldwelding’, ‘contact welding’, ‘adhesion’, ‘sticking’ or ‘stiction’). Coldwelding is a solid-state welding process in which joining takes place without fusion or heating at the interface of the two parts to be welded. This effect mainly concerns metal-to-metal contacts. It was first recognized as a general materials phenomenon in the 1940s: Clean, flat surfaces of metal might strongly adhere if brought [...]

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CronHard – Achieving Stress Corrosion Cracking Resistance in Bearing Steel
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CronHard – Achieving Stress Corrosion Cracking Resistance in Bearing Steel

Space

CronHard – Achieving Stress Corrosion Cracking Resistance in Bearing Steel

By Andreas Merstallinger|2023-10-16T09:45:34+02:0016. October 2023|Space|

Ball bearings are essential components in various mechanical systems, designed for their high hardness to ensure wear resistance and the ability to withstand high contact stresses. For many years, this design philosophy served well as long as traditional bearing configurations with predominantly compressive stresses were prevalent. Stress corrosion cracking (SCC) was not a significant concern in such setups. However, as the industry continues to evolve towards more efficient and lightweight integrated solutions, where bearings are [...]

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Coefficient of Moisture Expansion:A challenging measurement task
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Coefficient of Moisture Expansion:
A challenging measurement task

Space

Coefficient of Moisture Expansion:
A challenging measurement task

By Roland Holzbauer|2024-01-26T13:06:59+01:0027. September 2023|Space|

A high degree of dimensional stability is often required for aircraft and spacecraft components. In order to evaluate polymeric composite materials for aerospace applications the coefficients of thermal expansion (CTE) and moisture expansion (CME) have to be determined. Coefficient of Moisture Expansion (CME) is defined as the ratio of change in strain and mass variation due to the moisture desorption or absorption. For the determination of the CME the change of length and the mass [...]

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A Giant Leap in Space Exploration: Successfully Completing the Cubesat Bakeout and TVAC Tests
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A Giant Leap in Space Exploration: Successfully Completing the Cubesat Bakeout and TVAC Tests

Space

A Giant Leap in Space Exploration: Successfully Completing the Cubesat Bakeout and TVAC Tests

By Christoph Auner|2023-09-29T13:17:46+02:0013. September 2023|Space|

In the ever-evolving realm of space exploration, every successful milestone brings us one step closer to unlocking the mysteries of the cosmos. Today, we are thrilled to share a remarkable achievement that signifies a significant leap forward in our space mission strategy. Our recent accomplishment in conducting the Bakeout and Thermal Vacuum Test TVAC for our Cubesat not only marks a momentous milestone but also reaffirms our commitment to pushing the boundaries of space exploration. [...]

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