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Occupant Kinematics in Laboratory Rollover Tests: PMHS Response
Technical Paper
2014-22-0011
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Language:
English
Abstract
The objective of the current study was to characterize the whole-body kinematic response of restrained PMHS in controlled laboratory rollover tests. A dynamic rollover test system (DRoTS) and a parametric vehicle buck were used to conduct 36 rollover tests on four adult male PMHS with varied test conditions to study occupant kinematics during the rollover event. The DRoTS was used to drop/catch and rotate the test buck, which replicated the occupant compartment of a typical mid-sized SUV, around its center of gravity without roof-to-ground contact. The studied test conditions included a quasi-static inversion (4 tests), an inverted drop and catch that produced a 3 g vertical deceleration (4 tests), a pure dynamic roll at 360 degrees/second (11 tests), and a roll with a superimposed drop and catch produced vertical deceleration (17 tests). Each PMHS was restrained with a three-point belt and was tested in both leading-side and trailing-side front-row seating positions. Whole-body kinematics were measured using a 3D motion capture system that quantified occupant displacement relative to the vehicle buck for the X-axis (longitudinal), Y-axis (lateral), and Z-axis (vertical) directions. Additionally the spine was divided into five segments to describe intrasegmental kinematics of the spine, including segment rotations as well as spinal extension and compression. The reported data represent the most complete set of kinematic response targets for a restrained occupant in a variety of dynamic rollover conditions, and are immediately useful for efforts to evaluate and improve existing ATDs and computational models for use in the rollover crash environment.
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Authors
- David J. Lessley - University of Virginia Center for Applied Biomechanics
- Patrick Riley - University of Virginia Center for Applied Biomechanics
- Qi Zhang - University of Virginia Center for Applied Biomechanics
- Patrick Foltz - University of Virginia Center for Applied Biomechanics
- Brian Overby - University of Virginia Center for Applied Biomechanics
- Sara Heltzel - University of Virginia Center for Applied Biomechanics
- Mark Sochor - University of Virginia Center for Applied Biomechanics
- Jeff Crandall - University of Virginia Center for Applied Biomechanics
- Jason R. Kerrigan - University of Virginia Center for Applied Biomechanics
Topic
Citation
Lessley, D., Riley, P., Zhang, Q., Foltz, P. et al., "Occupant Kinematics in Laboratory Rollover Tests: PMHS Response," SAE Technical Paper 2014-22-0011, 2014, https://doi.org/10.4271/2014-22-0011.Also In
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