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Analysis of Reclined Posture ATD and PMHS Pelvis-Lumbar Spine Component Tests under Vertical Impact.
| 题名： | Analysis of Reclined Posture ATD and PMHS Pelvis-Lumbar Spine Component Tests under Vertical Impact. |
| 作者： | Yoganandan, N; Moore, J; Humm, J; Baisden, J; Pintar, F. A; Wassick, M; Barnes, D; Loftis, K. |
| 摘要： | The experimental design and protocols used in the study showed the feasibility of conducting anthropomorphic test device(ATD) and postmortem human surrogate (PMHS) tests in reclined postures. The tested Generation (Gen)-I version of theWarrior Injury Assessment Manikin (WIAMan) ATD appears to be suitable to evaluate the performance in under-body blastloading under different postures: nominal to recline, potentially reflecting future seat and vehicle designs in the military. Thebiomechanical responses analyzed from the PMHS data showed that injuries parallel nominal postures and spinal loads canbe determined. Mechanical responses from the ATD data demonstrated that component-based contributions of axial andshear forces and bending moments depend on the postural angulation. In this analysis study, the shear factor was used as abiomechanical metric for quantifying the responses of the pelvis–lumbar spine of the Gen-1 ATD because it accommodatedboth the axial and shear forces in the time domain. Recognizing that the shear factor did not significantly change with differentreclined postures considered in this test series, the current injury assessment reference curves developed for the nominalposture may also be applicable to reclined postures with this ATD. |
| 总页数： | 47 pages |
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