Load-bearing Structure of the Enclosure. Type 1-B
Glavkosmos
Cylindrical CFRP grid-shell load-bearing structure for mounting spacecraft subsystems and equipment.
Technical specifications
- Angle between intersection nodes of spiral fins
- 6°
- Angle between two spiral fins
- 28°
- Spiral fins thickness
- 6+1 mm
- Circumferential fins thickness
- 2+1 mm
- Distance between intersection nodes of spiral fins
- 144 mm
- Distance between circumferential fins
- 122 mm
- High pressure metal-xenon tank unit
- Yes
- Ring material (upper/lower)
- CFRP based on M46J / CFRP based on M46J
- Flight heritage
- Flight-qualified since 2000
- Construction
- Cylindric grid shell made from CFRP with two interface rings
About
The Load-bearing Structure of the Enclosure Type 1-B is a cylindrical grid shell made from carbon-fiber-reinforced plastic (CFRP) with two interface rings, produced by Glavkosmos for spacecraft bus construction. Its purpose is mounting spacecraft subsystem structural elements and equipment, forming the primary load-bearing shell of the spacecraft enclosure. It has been flight-qualified since 2000 and can accommodate a high-pressure metal-xenon tank unit. Unlike the Type 1-A variant, this configuration uses CFRP based on M46J fiber for both the upper and lower interface rings instead of aluminum alloy, while sharing the same spiral-fin geometry (6-degree node angle, 28 degrees between fins, 6+1 mm spiral fin thickness, 2+1 mm circumferential fin thickness). Glavkosmos can adapt the design to individual customer requirements on request.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
