Distributed space resource logistics system optimization under economies of scale

This paper proposes an optimization framework for distributed resource logistics system design to support future multi-mission space exploration. The performance and impact of distributed in-situ resource utilization (ISRU) systems in supporting space transportation are analyzed. The proposed framework takes into account technology trade studies, deployment strategy, facility location evaluation, and resource logistics after production for distributed ISRU systems. We develop piecewise linear sizing and cost estimation models based on economies of scale that can be easily integrated into network-based mission planning formulations. A case study on a multi-mission cislunar logistics campaign is conducted to demonstrate the value of the proposed method and evaluate key tradeoffs to compare the performance of distributed ISRU systems with traditional concentrated ISRU.