Damage-mitigating control of hypersonic flight vehicle based on prescribed performance

Abstract

The goal of damage-mitigating control is to enhance the service life of complex mechanical systems without any significant performance loss. A prescribed performance damage-mitigating controller is designed in this paper to mitigate the damage during longitudinal tracking control of a generic hypersonic flight vehicle. Based on the analysis of stress conditions of wing and construction of damage accumulation model, a hierarchical damage-mitigating controller is designed using prescribed performance which ensures the robustness of performance even after damage-mitigation. Simulation results are presented to show that after damage information feedback, the dynamic performance of the flight is maintained and the damage accumulation is vastly reduced.

Analysis of damage characteristics of an aeroelastic model for air-breathing hypersonic vehicles

“…Therefore, Wang et al (2019) performed the wing force analysis and structural reliability calculations for a hypersonic flight vehicle (HFV). Based on results obtained by Wang et al (2019), Ying et al (2019) presented a new continuous damage dynamic model of the wing for an HFV, and Zhang et al (2019) studied the influence of wing dynamics on the damage when the wings were fluttering.…”

“…Therefore, Zhang et al (2000) performed a comprehensive analysis to achieve a balance between damage mitigation and system performance. To further improve the dynamic performance of damage-mitigating control, Ying et al (2019) proposed a new damage-mitigating controller based on a prescribed performance algorithm.…”

“…The damages caused by elastic deformation are critical for studying the damage characteristics of AHFVs more accurately, and they should be considered in further research. In addition, the damage models in the results of Wang et al (2019) and Zhang et al (2019) for AHFVs mainly focused on the wings (Ying et al , 2019). Therefore, it is necessary to develop a new damage model for the entire body with the elastic dynamics of AHFVs rather than being limited to the wings.…”

Integrated navigation approaches of vehicle aided by the strapdown celestial angles

“…Particularly, hypersonic vehicles have the characteristics of fast flight speed, high attack power, and global reach and have high requirements for navigation system reliability, start-up time, and environmental conditions. 2 –11 The strapdown celestial navigation measures natural celestial bodies to determine the vehicle location or heading, facilitating an independent navigation system. In the existing direction-finding technique, the star sensor is based on the star reference system and is the most accurate and minimally drifting attitude measuring component to date.…”

“…In the existing direction-finding technique, the star sensor is based on the star reference system and is the most accurate and minimally drifting attitude measuring component to date. 2 –5 The above advantages make the research and application of star sensors very active, which have been widely used in various fields such as Earth remote sensing, earth mapping, planetary mapping, interstellar communications, and intercontinental missiles. 6 –9 The star sensor and the inertial navigation system for integrated navigation have strong complementarity in performance.…”