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Comparison of Human and ATD Head Kinematics During Low-Speed Rearend Impacts
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English
Abstract
The head motions of a human driver and a Hybrid III Anthropometric Test Device (ATD) right front passenger were measured in low-speed rearend impacts (velocity change (ΔV) ≤ 8 kph) with high speed film and accelerometers. Data were analyzed from three crashes with the same human driver (weight similar to ATD) at ΔV's of 3.9, 6.6 and 7.8 kph. The results indicate that the human's and ATD's head have roughly similar basic patterns of motion: a post-impact period where the head is stationary with respect to the earth (Phase I), a period where the head rotates rearward with respect to the vehicle (Phase II), a subsequent period where the head rotates forward with respect to the vehicle (Phase III) and a final period where the head settles into a post-impact rest position (Phase IV). The human's head motion tended to be more complex than the ATD's head motion during Phases II and III. These results suggest that the Hybrid III head kinematics are different from human head kinematics in the same low-speed rearend collisions and care must be used in predicting human head motion and whiplash injury potential from Hybrid III measurements in low-speed rearend impacts.
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Authors
- Michael W. Scott - Biodynamic Research Corp.
- Whitman E. McConnell - Biodynamic Research Corp.
- Herbert M. Guzman - Biodynamic Research Corp.
- Richard P. Howard - Biodynamic Research Corp.
- John B. Bomar - Biodynamic Research Corp.
- Harry L. Smith - Biodynamic Research Corp.
- James V. Benedict - Biodynamic Research Corp.
- James H. Raddin - Biodynamic Research Corp.
- Charles P. Hatsell - Biodynamic Research Corp.
Citation
Scott, M., McConnell, W., Guzman, H., Howard, R. et al., "Comparison of Human and ATD Head Kinematics During Low-Speed Rearend Impacts," SAE Technical Paper 930094, 1993, https://doi.org/10.4271/930094.Also In
Human Surrogates: Design, Development and Side Impact Protection
Number: SP-0945; Published: 1993-03-01
Number: SP-0945; Published: 1993-03-01
References
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- McConnell, W.E. et al. “Analysis of Human Test Subject Kinematic Responses to Low-Velocity Rearend Impacts” 1993 SAE International Congress & Exposition March 1-5 1993
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