Inverse design of Finocyl-type solid rocket grains for thrust-profile matching using surrogate-assisted optimization

Published in Aerospace Science and Technology, 2026

This study presents a surrogate-assisted optimization framework for the inverse design of Finocyl-type solid rocket motor grains to match target thrust-profile requirements.

The proposed approach combines grain burnback and internal ballistic analysis with efficient surrogate modeling and optimization, enabling rapid exploration of Finocyl grain geometries while reducing the computational cost associated with repeated high-fidelity evaluations.

The results demonstrate that the framework can identify grain configurations that closely reproduce prescribed thrust profiles, supporting efficient conceptual design and performance matching for solid rocket motors.

Recommended citation: Kim, E., Kim, M., Kwon, M., Joo, S., & Oh, S. (2026). "Inverse design of Finocyl-type solid rocket grains for thrust-profile matching using surrogate-assisted optimization." Aerospace Science and Technology, 113772.
Download Paper