Built On-orbit Robotically assembled Gigatruss (BORG): A mixed assembly architecture trade study

Area of Science:

• Space Engineering
• Robotics
• Aerospace Structures

Background:

• Current space structures are limited by launch vehicle volume and mass, restricting size.
• Deployable structures require complex folding and perfect deployment, posing risks.
• In-space assembly (ISA) enables larger structures by utilizing multiple launches.

Purpose of the Study:

• To explore a mixed assembly architecture for Built On-orbit Robotically assembled Gigatruss (BORG).
• To conduct a trade study on the advantages of mixed assembly across mission phases.
• To compare different architectural schemes using a weighted decision matrix.

Main Methods:

• Investigated a mixed assembly architecture for robotic in-space assembly.
• Performed a trade study analyzing manufacturing, stowage, transport, ISA, and servicing phases.
• Utilized a weighted decision matrix for comparative analysis of architectural schemes.

Main Results:

• The mixed assembly approach offers potential advantages over traditional methods.
• Analysis covered benefits across the entire mission lifecycle.
• A decision matrix provided a framework for comparing different designs.

Conclusions:

• Mixed assembly architectures present a viable alternative for constructing large space structures.
• Robotic in-space assembly is key to expanding future space endeavors.
• Further research into mixed assembly designs is warranted for advanced space missions.