Investigation of roll-lateral coordinated motion requirements with a conventional hexapod motion platform

Chung, William; Robinson, Doug J.; Wong, Jason; Martin, Lockheed

doi:10.2514/6.1998-4172

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…Pilot opinion of the full motion condition was less positive than expected, because of undesirable side-effects, such as mechanical noise caused by extreme motion system displacements. Further studies by Mikula (13) conducted on the NASA VMS, Chung (14) on an 80in stroke hexapod and Beykirch (15) on an anthropomorphic robot-arm simulator, found similar results to those reported by Schroeder.…”

Section: Roll-motion Sway-motion Conclusionsupporting

confidence: 73%

Optimising the roll-sway motion cues available from a short stroke hexapod motion platform

et al. 2015

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This paper presents findings from research conducted at the University of Liverpool aimed at optimising the motion cues available from a short-stroke hexapod motion platform. Piloted simulations were conducted for a typical helicopter low-speed sidestep manoeuvre. To correctly simulate the sidestep manoeuvre the motion platform must translate laterally at the same time as it rolls. If the motion in these two axes is not properly harmonised then the pilot can experience significant false motion cues. This is a particular concern for short-stroke hexapod platforms, where displacement limits can severely constrain the available lateral travel particularly during motion in multiple axes (e.g. roll and sway). During the experiment the motion filter gains in the roll and sway axes and the roll-axis motion filter break-frequency were varied. Objective and subjective measures of pilot performance and motion fidelity were gathered for each motion filter configuration, the latter using a new motion fidelity rating scale. The key findings show that acceptable motion cues could only be achieved by careful harmonisation of the motion filter gains in the roll

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Section: Roll-motion Sway-motion Conclusionsupporting

confidence: 73%

Optimising the roll-sway motion cues available from a short stroke hexapod motion platform

et al. 2015

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“…Based on the results from previous research, 3 it is expected that the condition with combined roll and lateral motion results in superior performance. Further, it is hypothesized that performance is increased with feedback of roll motion relative to the condition without motion.…”

Section: Iig Hypothesesmentioning

confidence: 96%

“…A third experiment again found similar results and showed that overall motion fidelity is dependent on the combined effect of roll and lateral motion cues. 3 In all these previous experiments, subjective measures were used to describe the effect of different motion feedback on pilot ratings. Especially in the experiment by Chung, 2 difficulties were encountered with these ratings in the sense that the reductions in motion fidelity falsely improved the handling qualities ratings.…”

Section: Introductionmentioning

confidence: 99%

Identification of Pilot Control Behavior in a Roll-Lateral Helicopter Hover Task

Nieuwenhuizen

Beykirch

Mulder

et al. 2007

AIAA Modeling and Simulation Technologies Conference and Exhibit

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This paper focuses on the influence of different forms of motion feedback on the perception and control behavior of pilots in a roll-lateral helicopter hover task. To identify this influence, a combined target-following and disturbance-rejection task is carried out where the motion feedback is varied. The participants perform the control task with roll motion only, lateral motion only, combined roll-lateral motion, or with no motion. A cybernetic approach is taken to identify multi-loop pilot describing functions and estimate the parameters of a pilot model. Results show that participants perform significantly better at the control task with feedback of combined roll-lateral motion, and decrease their control activity. For the condition with feedback of roll motion a similar trend is observed. This is explained through the increased amount of information present in the inner roll stabilization loop.

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On the Objective Evaluation of Motion Cueing in Vehicle Simulations

Casas

Portales-Ricart

Morillo

et al. 2021

IEEE Trans. Intell. Transport. Syst.

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Investigation of roll-lateral coordinated motion requirements with a conventional hexapod motion platform

Cited by 8 publications

References 2 publications

Optimising the roll-sway motion cues available from a short stroke hexapod motion platform

Optimising the roll-sway motion cues available from a short stroke hexapod motion platform

Identification of Pilot Control Behavior in a Roll-Lateral Helicopter Hover Task

On the Objective Evaluation of Motion Cueing in Vehicle Simulations

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