Simulation evaluation of the effects of time delay and motion on rotorcraft handling qualities

Mitchell, David G. M.; Hoh, Roger H.; Atencio, A.; Key, David L.

doi:10.2514/6.1991-2892

Cited by 8 publications

(11 citation statements)

References 3 publications

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“…Previous research [95,100,101] that investigated the effect of varying simulator transport delay on flight simulators showed that the total transport delay is dependant on both the visual system delay and the motion system delay. If the motion and visual system transport delays are not correctly synchronised, it is likely that the pilot will experience conflicting visual and vestibular cues.…”

Section: Simulator Latency Characteristicsmentioning

confidence: 99%

Practises to identify and prevent adverse aircraft-and-rotorcraft-pilot couplings—A ground simulator perspective

Pavel

Jump

Masarati

et al. 2015

Progress in Aerospace Sciences

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Section: Simulator Latency Characteristicsmentioning

confidence: 99%

Practises to identify and prevent adverse aircraft-and-rotorcraft-pilot couplings—A ground simulator perspective

Pavel

Jump

Masarati

et al. 2015

Progress in Aerospace Sciences

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“…The control devices were electrically actuated collective and cyclic controls with adjustable dynamics settings. The settings used for each control axis were based on [29] and are listed in Table 1. The seat in which the subjects were seated had a 5-point safety belt that was adjusted tightly.…”

Section: Apparatusmentioning

confidence: 99%

A practical biodynamic feedthrough model for helicopters

et al. 2013

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Biodynamic feedthrough (BDFT) occurs when vehicle vibrations and accelerations feed through the pilot's body and cause involuntary motion of limbs, resulting in involuntary control inputs. BDFT can severely reduce ride comfort, control accuracy and, above all, safety during the operation of rotorcraft. Furthermore, BDFT can cause and sustain Rotorcraft-Pilot Couplings (RPCs). Despite many studies conducted in past decades -both within and outside of the rotorcraft community -BDFT is still a poorly understood phenomenon. The complexities involved in BDFT have kept researchers and manufacturers in the rotorcraft domain from developing robust ways of dealing with its effects. A practical BDFT pilot model, describing the amount of involuntary control inputs as a function of accelerations, could pave the way to account for adversive BDFT effects. In the current paper, such a model is proposed. Its structure is based on the model proposed by Mayo [1], its accuracy and usability are improved by incorporating insights from recently obtained experimental data. An evaluation of the model performance shows that the model describes the measured data well and that it provides a considerable improvement to the original Mayo model. Furthermore, the results indicate that the neuromuscular dynamics have an important influence on the BDFT model parameters.

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“…Previous research [95,100,101] that investigated the effect of varying simulator transport delay on flight simulators showed that the total transport delay is dependent on both the visual system delay and the motion system delay. If the motion and visual system transport delays are not correctly synchronised, it is likely that the pilot will experience conflicting visual and vestibular cues.…”

Section: Simulator Latency Characteristicsmentioning

confidence: 99%

“…[95] investigated the effect of varying simulator transport delay on HQs Ratings (HQRs). It showed that additional transport delays of only 80ms resulted in degradation of the average…”

Section: Simulator Latency Characteristicsmentioning

confidence: 99%

“…This suggests that a simulator with an additional 80ms transport delay would result in a compromised training utility. It should be noted that the baseline transport delay in the simulator used for that study was only 10 ms. Lead compensation filters were used to eliminate the delays in the motion and visual systems [95].…”

Section: Simulator Latency Characteristicsmentioning

confidence: 99%

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Practices to identify and preclude adverse Aircraft-and-Rotorcraft-Pilot Couplings – A design perspective

Pavel

Masarati

Gennaretti

et al. 2015

Progress in Aerospace Sciences

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Abstract:The aviation community relies heavily on flight simulators as a fundamental tool for research, pilot training and development of any new aircraft design. The goal of the present 1 Corresponding author Tel. +31 15-2785374, E-mail Address m.d.pavel@tudelft.nl 2 paper is to provide a review on how effective ground simulation is as an assessment tool for unmasking adverse Aircraft-and-Rotorcraft Pilot Couplings (APC/RPC). Although it is generally believed that simulators are not reliable in revealing the existence of A/RPC tendencies, the paper demonstrates that a proper selection of high-gain tasks combined with appropriate motion and visual cueing can reveal negative features of a particular aircraft that may lead to A/RPC. The paper discusses new methods for real-time A/RPC detection that can be used as a tool for unmasking adverse A/RPC. Although flight simulators will not achieve the level of reality of in-flight testing, exposing A/RPC tendencies in the simulator may be the only convenient safe place to evaluate the wide range of conditions that could produce hazardous A/RPC events.

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Simulation evaluation of the effects of time delay and motion on rotorcraft handling qualities

Cited by 8 publications

References 3 publications

Practises to identify and prevent adverse aircraft-and-rotorcraft-pilot couplings—A ground simulator perspective

Practises to identify and prevent adverse aircraft-and-rotorcraft-pilot couplings—A ground simulator perspective

A practical biodynamic feedthrough model for helicopters

Practices to identify and preclude adverse Aircraft-and-Rotorcraft-Pilot Couplings – A design perspective

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