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International Society of Science and Applied Technologies |
| Reliable Longitudinal Control Design for Hypersonic Vehicles in Complex Flight Environments | ||||
| Author |
Man Luo
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| Co-Author(s) |
Dongjin Wang; Fuyang Chen
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| Abstract | Hypersonic vehicles (HSVs) navigating complex and stochastic flight environments face severe challenges from atmospheric density fluctuations and aerodynamic nonlinearities, which impose stringent demands on flight control reliability. This paper develops a Hessian-augmented Integral Sliding Mode Control (ISMC) framework aimed at ensuring longitudinal flight control reliability under extreme conditions. The architecture is implemented through three functional layers: First, robust virtual control via ISMC suppresses residual mapping mismatches caused by atmospheric fluctuations. Second, an autonomous boundary protection mechanism proactively prevents dynamic pressure from exceeding safety limits, thereby safeguarding structural integrity. Third, a Hessian-augmented mapping utilizes second-order sensitivities to explicitly compensate for high-order aerodynamic curvatures, overcoming the reliability limitations of standard first-order Nonlinear Dynamic Inversion under intense stochastic perturbations. Lyapunov stability analysis mathematically proves the finite-time convergence. Simulations demonstrate that the framework strictly enforces dynamic pressure boundaries while maintaining stable tracking, providing the necessary safety reliability for unpredictable, high-dynamic flight regimes.
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| Keywords | Hypersonic vehicles, Longitudinal control, Hessian augmentation | |||
| Article #: RQD2026-275 | ||||
Proceedings of 31st ISSAT International Conference on Reliability & Quality in Design |