Automatic Spin Recovery with Minimal Altitude Loss

Bunge, Roberto; Kroo, Ilan

doi:10.2514/6.2018-1866

Cited by 11 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper, we develop an MPC strategy to minimize loss-of-altitude using only the elevator η, i.e., thrust F = 0, in accordance with governmental procedures for manual recovery [30]. LOA is a crucial metric for both collision avoidance and operating envelope recovery post stabilization [11,12]. We will adopt the convention that the aircraft has recovered when it returns to a stable trim condition within the region of attraction of a nominal flight controller which subsequently reinstates level flight.…”

Section: Problem Formulationmentioning

confidence: 99%

“…In this paper, we propose a loss of altitude (LOA) minimizing economic model predictive control (EMPC) strategy for deep-stall recovery which we compare to linear and nonlinear tracking type MPC controllers. LOA is an important performance metric for upset recovery maneuvers and it can be exploited to enlarge the operational envelope during and after the maneuver, particularly at low altitudes [11,12]. The EMPC framework, see, e.g., [13] for an overview, allows for direct minimization of the LOA.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees^⋆

Cunis

Liao‐McPherson

Condomines

et al. 2019

2019 IEEE 58th Conference on Decision and Control (CDC)

View full text Add to dashboard Cite

Aircraft upset recovery requires aggressive control actions to handle highly nonlinear aircraft dynamics and critical state and input constraints. Model predictive control is a promising approach for returning the aircraft to the nominal flight envelope, even in the presence of altered dynamics or actuator limits; however, proving stability of such strategies requires careful algebraic or semi-algebraic analysis of both the system and the proposed control scheme, which can be challenging for realistic control systems. This paper develops economic model predictive strategies for recovery of a fixed-wing aircraft from deep-stall. We provide rigorous stability proofs using sum-of-squares programming and compare several economic, nonlinear, and linear model predictive controllers.

show abstract

Section: Problem Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees^⋆

Cunis

Liao‐McPherson

Condomines

et al. 2019

2019 IEEE 58th Conference on Decision and Control (CDC)

View full text Add to dashboard Cite

show abstract

“…Recovering from aircraft spin is difficult and depends on its spin characteristics, including entry speed, intensity, and recovery time. The combination of a steep descent, delayed recognition of the spin mode, and inadequate recovery actions creates a situation where it becomes almost improbable for the pilot to achieve a successful recovery before colliding with the ground [5,6]. Hence, research on control technology for automatic recovery from aircraft spin is of utmost importance.…”

Section: Introductionmentioning

confidence: 99%

Fixed-Time Aircraft Spin Recovery Control Based on a Nonsingular Integral Terminal Sliding Mode Approach

Wang,

Zhu

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

This paper introduces a control strategy to recover from various spin motions to level trim flight conditions, utilizing a fixed-time nonsingular terminal sliding mode approach to minimize altitude loss. Firstly, an integral terminal sliding mode surface is constructed to guarantee the tracking errors of the spin recovery system converge to the origin within a fixed time and avoid the singularity problem. Next, a fixed-time type reaching law is proposed to weaken the chattering phenomenon and guarantee terminal sliding hyperplanes converge to zero in a fixed time. Furthermore, the stability analysis indicates the fixed-time convergence stability of the spin recovery control system and provides an accurate calculation of the settling time. Finally, comparative simulations are performed to validate the effectiveness and superiority of the developed spin recovery control scheme.

show abstract

“…Moreover, in both the papers, the authors performed the simulation, wherein mean sea level flight altitude was considered, and the altitude at which recovery happened is not addressed. The proposed automatic spin arrest control system in work 12 reduces altitude loss. However, the incipient stage of aircraft was considered which is the initial stage of spin, and from this stage, the aircraft can be easily recovered.…”

Section: Introductionmentioning

confidence: 99%

Vertical thrust-based effective flat-spin recovery of aircraft restricting altitude loss

Salahudden

Ghosh

2022

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

Among the various modes of aircraft spin, flat-spin being the most ruthless form, the severity and the flight parameters govern the recovery success rate. This paper presents a novel approach for utilizing vertical thrust to reduce the fatality of the flat-spin in terms of excessive altitude loss regulating the survivability post aircraft recovery. F-18 High Alpha Research Vehicle is considered for the present study to demonstrate effectiveness of the proposed method. The dynamics of vertical thrust add-on is conceptualized and incorporated to the standard aircraft. Subsequently, to validate the effectiveness of this mode of recovery as compared to the conventional primary control based method, standard sliding-mode control technique is adopted. Closed-loop simulation shows that vertical thrust restricts altitude loss and minimizes spin recovery time compared to the conventional mode of recovery from flat-spin. The outcome of the present study ensures the use of vertical thrust as a potential solution for minimizing aircraft flat-spin-related fatal accidents.

show abstract

Automatic Spin Recovery with Minimal Altitude Loss

Cited by 11 publications

References 7 publications

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees^⋆

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees^⋆

Fixed-Time Aircraft Spin Recovery Control Based on a Nonsingular Integral Terminal Sliding Mode Approach

Vertical thrust-based effective flat-spin recovery of aircraft restricting altitude loss

Contact Info

Product

Resources

About

Automatic Spin Recovery with Minimal Altitude Loss

Cited by 11 publications

References 7 publications

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees⋆

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees⋆

Fixed-Time Aircraft Spin Recovery Control Based on a Nonsingular Integral Terminal Sliding Mode Approach

Vertical thrust-based effective flat-spin recovery of aircraft restricting altitude loss

Contact Info

Product

Resources

About

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees^⋆

Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees^⋆