TNO Human Factors

Practical and theoretical developments of countering SD in the NetherlandsWillem Bles

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TNO Human Factors

Soesterberg

TNO Human Factors specializes in the knowledge on human factors and its application in the design of human workand adequate technical aids.

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? Perception? Information Processing? Skilled Behavior? Work Environment? Training and Instruction? Group Work

Research topics

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Perception

• Vision and Imaging• Display• Hearing• Speech

Information Processing

• Cognition• Information Transfer

Skilled Behavior

• Steering and Control• Traffic Behavior

Work Environment

• Workplace Ergonomics• Thermal Physiology• Equilibrium and Orientation

Training and Instruction

• Learning Processes• Team Training• Simulation and Modeling

Group Work

• Distributed Decision Making• Psychosocial Interactions

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‘Equilibrium & Orientation’

• Core business: Human equilibrium system

• spatial orientation SD, motion sickness• postural balance postural instability• gaze stabilisation nystagmus, blur

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need for RNLAF to obtain knowledge on:

• SD basic and refresher courses- Man in the loop scenario?

• Future Flight Simulation- Centrifuge (for high-performance aircraft)?

Fixed radius, high G-loadG-loading with angular acceleration

- G-simulator (for superagile aircraft)?Variable radius, moderate G-loadG-loading with minimum angular acceleration

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Demo basic

• A one-day course

SD in general, definitions, etc.some physiologydemonstrations, unrelated to flying

important: interaction trainer - traineetransparencyself-experience

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Model concept

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Input and output relations

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Needs for SD-demonstration:

• Visual illusions: Visuals (abstract or realistic)• Vestibular illusions: Move the platform such that the

illusion is evoked by the same mechanism as in real flight (no cheated illusions, transparency)

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Example:

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More specific:

Demonstration of ‘vestibular’ illusions:

- Erroneous perception of low-frequency turning due to vestibular SCC

- Erroneous perception of GIF as gravity

Required:

unrestrained 3D-rotation

sustained G-load

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GIF vector as gravity.

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GIF vector as gravity, roll vection

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Roll motion

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Visual-vestibularinteractions inCoriolis effects

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A pure yaw rotation

B vestibular Coriolis effect

C Purkinje effect

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A constant velocity rotation

B during acceleration

C during deceleration

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D pure opto/somatosensory stimulation

E congruent motion information

F incongruent motion information

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Tilting room

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Ship Motion Simulator

not for F-16 pilots !!!

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NVG

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L/R reversing prisms

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Refresher course requires realistic flight scenario.

out-the-window visualscockpit environmentman-in-the-loop scenario

(tracking target aircraft)

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DISO

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Desdemona components

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• track length 8 mmax lin acc. 0.5 gmax centr. acc 3 g

• vertical stroke 2 mmax. acc. 0.5 g

• pitch, roll and yaw >360 degrrate 90 degr/s

• Out-the-window visuals

Some specifications

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Is there a match betweenthe Desdemona concept and the RNLAF need?

yes