Shield Repair and Replacement
Shield Repair and Replacement System
The Shield Repair and Replacement System maintains exterior impact protection on lunar structures by robotically swapping impact-damaged shield segments with pre-positioned or in-situ manufactured aluminum replacement panels. Operating across a 100-year design lifetime, the subsystem must execute mechanical alignment and latching on exterior surfaces exposed to hard vacuum, abrasive regolith, and 300 K temperature swings between lunar day and 14-day nights. Because the lack of an atmosphere or magnetosphere restricts manual servicing, external robotic manipulators perform these component exchanges and execute post-installation verification tests to ensure the replacement panel fully restores the original barrier's baseline protection levels.
Robotic capability and spare panels for external shield repair after impact damage
Purpose
Restore shield integrity after significant impact events via robotic panel replacement
Context
Component of L1-MMD within the Lunar Ark system
Principles
- ▸Pre-positioned spare shield panels enable replacement of damaged sections
- ▸Robotic shield replacement procedures must be pre-defined and practiced
- ▸ISRU-manufactured replacement panels reduce dependence on pre-positioned spares
- ▸Repair verification confirms restored protection level after panel replacement
Typical implementations
- ▸ISS MMOD shield replacement EVA procedures
- ▸Robotic repair demonstrations (DARPA Phoenix, NASA RRM)
- ▸Pre-positioned spare parts management for remote installations
- ▸In-situ manufacturing of metallic shield components
Lunar considerations
- ▸Robotic shield replacement must work on exterior surfaces in harsh environment
- ▸ISRU can potentially manufacture aluminum bumper panels from lunar resources
- ▸Spare inventory must balance mass budget against probability of needed repairs
- ▸Replacement must restore original protection capability (verified by testing)
Specifications
Functional
| primary function | Restore shield integrity after significant impact events via robotic panel replacement |
Operational
| thermal range c | -173, 127 |
| lifetime years | 100 |
Interfaces
Provides
- Replacement shield panels and components
Requires
- Robotic manipulation for shield panel replacement
- ISRU-manufactured replacement shield panels
Decomposes into
Cite this entry
Lunar Ark Codex. "Shield Repair and Replacement" (L2-MMD-SPARE). Retrieved 10 September 2026, from https://lunarark.com/entry/L2-MMD-SPARE
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.