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ES-2 Back Plate/Seat Interaction

Research results from May 2002 on back plate/seat interaction in vehicle crash tests. Analysis of back plate "grabbing," loads, and momentum contribution, with a focus on Impala test results. Comparison of ES-2 and SID-H3 contact areas and pressure maps.

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ES-2 Back Plate/Seat Interaction

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  1. ES-2 Back Plate/Seat Interaction George MouchahoirMay, 2002

  2. Back Plate/Seat Interaction ES-2 Research Results • Data for two out of seventeen vehicle models crash tested suggest back plate “grabbing” by intruding structure. Large back plate loads occurring early in time relative to the lower spine loads were observed. • Back plate loads and corresponding momentum contribution were low for the remaining fifteen vehicle models.

  3. SID-H3 only contacts at ~T-1 location (stiff, upright posture) • ES-2 contact area is larger than SID-H3, but located high as well, indicating relatively stiff torso 50th% male volunteer ES-2 SID-H3 Back Pressure Maps With 40 lb. Frontal Force Applied Back Plate/Seat Interaction ES-2 Research Results • Seat back pressure map measurements indicate that corners of ES-2 torso back plate are areas of high pressure

  4. Back Plate “Grabbing” in Side NCAP Test of Impala

  5. PRIZM

  6. IMPALA

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