Passive Sidesticks and Hard Landings - Is there a Link?

Wolfert, Floris; Bromfield, Michael A.; Stedmon, Alex W.; Scott, Steve

doi:10.2514/6.2019-3611

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…The development and application of the fly-by-wire technology provided a solution to this issue [4][5][6] . Subsequently, the control stick and the control surface were no longer directly connected by mechanical structures [7] . This resulted in pilots being unable to feel the aerodynamic force of the control surface during operation, giving rise to a "lack of sensation" phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Parameters design for feel system of aircraft active inceptor controller

Wei,

Liu,

Cui

et al. 2024

J. Phys.: Conf. Ser.

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To provide the pilot with feedback on flight states, aircraft active inceptor controllers deliver appropriate tactile feedback through the feel system. Current research on the feel system often relies on conventional models, with limited analysis of its unique characteristics. Investigating the dynamic properties of the feel system and their impact on flying quality can inform the parameters design of the feel system. In this paper, we designed various feel system parameters with different natural frequencies and damping ratios and selected three typical aircraft dynamic models. A human-vehicle closed-loop system model is established, including the pilot model, feel system model, and aircraft dynamic model. Combining different flying quality criteria, including bandwidth criterion, Neal-Smith criterion, and Open-Loop Onset-Point (OLOP) criterion, the flying qualities of Type I and Type II pilot-induced oscillations (PIO) are evaluated separately. The influence of aircraft configuration, feel system natural frequency and damping ratio on flying quality is explored. Finally, design recommendations for the feel system are proposed, aiming to reduce the adverse aircraft pilot coupling and improve flying quality.

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Section: Introductionmentioning

confidence: 99%

Parameters design for feel system of aircraft active inceptor controller

Wei,

Liu,

Cui

et al. 2024

J. Phys.: Conf. Ser.

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“…Therefore, the information on the flight envelope protection system is not transferred to the pilot using the sense of touch. Literature on the physical/haptical connection between both pilots (Field & Harris, 1998;Uehara & Niedermeier, 2013;Wolfert et al, 2019), and the crashes of Air France 447 and Air Asia 8501, show that not having this direct way of feedback might contribute to a reduced awareness of the pilot on the state of the aircraft, especially when sensor failures occur and the system reverts to less protected regimes.…”

Section: Introductionmentioning

confidence: 99%

Flying by Feeling: Communicating Flight Envelope Protection through Haptic Feedback

Baelen

Paassen

Ellerbroek

et al. 2021

International Journal of Human–Computer Interaction

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Modern aircraft can be equipped with a flight envelope protection system: automation which modifies pilot control inputs to ensure that the aircraft remains within the allowable limits. Overruling the pilot inputs may lead to mode confusion, even when visual or auditory feedback is provided to alert pilots. We advocate using active control devices to make the flight envelope protection system tangible to the pilot. This paper presents the main findings of an evaluation of three haptic feedback designs for flight envelope protection. The first concept used both force feedback and vibro-tactile alerts, producing promising, yet inconclusive, results. The second concept used asymmetric vibrations to give directional alerting cues, which did not result in improved performance on initial use, but which did yield improved learning rate for the task. The third system employed force feedback to physically guide the pilot away from flight envelope limits, which yielded safety improvements from the first use, but created dependence: pilot performance degraded immediately after the force feedback was removed. From this, we advise to use asymmetric vibrations during training for flight envelope excursions, to leverage active control interfaces for providing force feedback during operation, and reevaluate a combination of both to combine their advantages for single-pilot operations.

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Investigating Pilots’ Operational Behaviours While Interacting with Different Types of Inceptors

Korek

et al. 2022

Engineering Psychology and Cognitive Ergonomics

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Passive Sidesticks and Hard Landings - Is there a Link?

Abstract: This document is the author's post-print version, incorporating any revisions agreed during the peer-review process. Some differences between the published version and this version may remain and you are advised to consult the published version if you wish to cite from it.

Cited by 4 publications

References 9 publications

Parameters design for feel system of aircraft active inceptor controller

Parameters design for feel system of aircraft active inceptor controller

Flying by Feeling: Communicating Flight Envelope Protection through Haptic Feedback

Investigating Pilots’ Operational Behaviours While Interacting with Different Types of Inceptors

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