RocketAgent: A Long-Horizon Engineering Agent for Multidisciplinary Design of Liquid-Rocket Thrust Chambers
This study addresses the challenges of tool coordination and information consistency arising from downstream constraint backtracking in the multidisciplinary design of liquid oxygen/kerosene rocket thrust chambers. To this end, a long-range engineering agent framework is proposed. This framework employs a single coding agent to orchestrate performance, optimization, geometric, and multiphysics capabilities. It integrates a provenance-aware knowledge graph to assist method selection, constructs a typed intermediate representation to maintain shared parameters, and establishes revision-aware mechanisms for result invalidation and input blocking. Experimental results demonstrate that the proposed approach successfully handles operating point corrections following infeasible cooling searches, thereby validating both its sustained coordination capability across disciplinary workflows and the effectiveness of the dependency invalidation mechanism.