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Fig. 3 | Journal of NeuroEngineering and Rehabilitation

Fig. 3

From: The dynamics of electric powered wheelchair sideways tips and falls: experimental and computational analysis of impact forces and injury

Fig. 3

Comparison of simulation (Madymo) and experimental (Qualysis) roll angle for occupied EPW model validation. The slope of the roll data between the experiment and simulation showed good agreement, indicating an accurate moment of inertia in the simulation. Peak roll values are missing from two experiments due to reflective markers being occluded by the dummy arm during tipping. Curbs heights were 0.3 m for all tests. Driving speed and angle varied between tests; T003 - speed = 3.3 m/s, angle = 39.5°, T004 – speed = 1.99 m/s, angle = 20.12°, T007 – speed = 2.35 m/s, angle = 23.12°

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