an innovative structural technology developed for space applications, called „distorting honeycombs”. Here are the key aspects of this technology:
Traditional sandwich structures
- Consist of two CFRP skin sheets with honeycomb cores between them
- Provide high strength and stability with low weight
- Drawback is the difficulty in creating complex, doubly curved shapes
New 3D Honeycomb technology
- Developed under a GSTP project in Luxembourg
- First of its kind in Europe
- Enables more efficient and cost-effective forming of complex shapes
Key features
- Change from hexagonal core to flattened polygons
- Ability to bend in multiple directions without losing mechanical stability
- Simplifies production of curved structures such as mirrors, nose cones, and fairings
Materials
- Various materials tested, including space-grade aluminum, E-glass, quartz, and kevlar
- Quartz fiber core proved best for antenna reflectors
- 3D aluminum core preferred for load-bearing structures
Applications and testing
- Two applications being studied in detail: reflector and load-bearing structure
- Planned tests include dimensional accuracy, strength, and thermal and acoustic properties
This technology has the potential to significantly simplify and reduce the cost of producing complex space structures, while offering designers greater freedom in creating advanced geometries.
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