Adaptive Thrust Regulation in Solid-fuel Ramjet with Variable Geometry Inlet

TL;DR

This paper introduces a data-driven adaptive control method called DMAC for precise thrust regulation in solid-fuel ramjets with variable geometry inlets, eliminating the need for detailed analytical models.

Contribution

The paper develops and applies a novel DMAC-based adaptive control technique for thrust regulation in SFRJs, demonstrating its effectiveness without relying on explicit system models.

Findings

DMAC achieves accurate thrust control across various conditions.

The method operates effectively without an analytical model.

Simulation results confirm reliable performance.

Abstract

This paper presents the application of a novel data-driven adaptive control technique, dynamic mode adaptive control (DMAC), to regulate thrust in a solid-fuel ramjet (SFRJ). A quasi-static one-dimensional model of SFRJ with a variable geometry inlet is developed to compute thrust. An adaptive tracking controller is then designed using the DMAC framework, which leverages dynamic mode decomposition to approximate the local system behavior, followed by a tracking controller designed around the identified model. Simulation results demonstrate that DMAC achieves accurate thrust regulation across a range of commanded profiles and operating conditions, without requiring an analytical model of the SFRJ. These findings indicate that DMAC provides a reliable and effective approach for model-free thrust regulation in an SFRJ with variable-geometry inlets as the control input.