Indirect Measurement of Head Orientation During Gy Acceleration

摘要

Although head-mounted technologies have the potential to significantly enhancepilot performance, they increase the mass of the helmet considerably and may increase the risk of cervical injury during emergency ejection. The lack of adequate head restraint makes the prediction of cervical injuries more complicated than other spinal injuries because the position of the head during the acceleration is unknown. A retroactive study of data from +Gy impacts of instrumented human volunteers and manikins attempted to determine head position during peak head acceleration from the direction of the head acceleration vector. The results show that the direction of this peak acceleration is very consistent across all subjects in test runs with sufficiently high energy, and that the ADAM manikin does not accurately reproduce the responses of the human head in Gy impacts.