Occupant Kinematics and Loading in Low Speed Lateral Impacts 2019-01-1027
Instrumented human volunteer and anthropometric test device (ATD) responses to low speed lateral impacts were investigated. A series of 12 lateral collisions at impact angles ranging from 45 to 135 degrees were conducted, 6 near-side and 6 far-side, with each test using the ATD and one human volunteer. Two restrained female volunteers were utilized, with one positioned in the driver seat and one in the left rear seat, and each volunteer was subjected to 3 near-side and 3 far-side impacts. The restrained ATD was utilized in both the driver and left rear seats, undergoing 3 near-side and 3 far-side impacts in each position. The vehicle center of gravity delta-V’s ranged from 5.4 to 9.4 km/h. Video analysis was used for quantification and comparison of the human and ATD motions and interactions with interior vehicle structures. Human head, thorax, and low back accelerations were analyzed. Peak volunteer head resultant accelerations ranged from 0.9 to 36.8 g’s. Peak volunteer thorax and low back lateral accelerations ranged from 1.0 to 17.1 g’s and 1.3 to 12.7 g’s, respectively. The ATD was instrumented with various sensors, including a tri-axial head accelerometer and 6-axis load cells in the upper neck, lower neck, and lumbar spine. Peak ATD head resultant accelerations ranged from 3.6 to 33.5 g’s. Peak ATD upper and lower neck compression ranged from -47.4 to -991.5 N and -52.1 to -740.6 N, respectively. Peak ATD lumbar compression ranged from -72.3 to -402.1 N. Cervical and lumbar shear loading and moments are also reported.
Christopher Furbish, Judson Welcher, Justin Brink, Brian Jones, Scott Swinford, Robert Anderson
Biomechanical Research & Testing, American Bio Engineers, Biomechanics Analysis