| Orginal Article |
|
|
|
|
|
Development of a lumped-mass dummy chest model with multi-directional biofidelity |
Xinghua LAI1,2,Chen XU3,Chunsheng MA1( ),Qing ZHOU1,Jinhuan ZHANG1 |
1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
2. Suzhou Automobile Research Institute (Xiangcheng), Tsinghua University, Suzhou 215000, China
3. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China; |
|
|
|
| Guide |
|
|
Abstract Existing crash test dummies are commonly designed to work in a specific loading direction. Without validation of their responses in other directions, say with oblique forces, the use of such dummies to evaluate injury risks of occupants in complex loading conditions is questionable. This paper describes a conceptual dummy thorax structure which can function in pure frontal, pure lateral and oblique 60˚ loading directions by properly positioning spring-damper modules inside the thorax structure. The dynamic behavior of the thorax to these three different directions is simulated using lumped-mass spring damper models and by building a simplified two-dimensional finite element dummy chest model that couples all three directions. The results show that the dummy thorax model can work in multiple loading directions. The validated mathematical model is reliable, with potential to be used in thorax injury studies for multiple/complex crash loading conditions, including oblique impact.
|
| Keywords
crash test dummy
chest
oblique
mechanical response
|
|
Issue Date: 15 June 2014
|
|
|
| [1] |
Nirula R, Pintar F A. Identification of vehicle components associated with severe thoracic injury in motor vehicle crashes: A CIREN and NASS analysis[J]. Accident Analysis & Prevention, 2008, 40(1): 137-141.
|
| [2] |
Yoganandan N, Pintar F A, Gennarelli T A, et al. Chest deflections and injuries in oblique lateral impacts[J]. Traffic Injury Prevention, 2008, 9(2): 162-167.
url: http://dx.doi.org/10.1080/15389580701775942
|
| [3] |
Shaw J M, Herriott R G, McFadden J D, et al. Oblique and lateral impact response of the PMHS thorax[J]. Stapp Car Crash Journal, 2006, 50: 147-167.
|
| [4] |
Brown G. Oblique and Lateral Impact Response Characteristics of the Denuded PMHS Thorax [D]. Columbus, OH: Ohio State University, 2008.
|
| [5] |
Noureddine A, Eskandarian A, Digges K. Computer modeling and validation of a Hybrid III dummy for crashworthiness simulation[J]. Mathematical and Computer Modelling, 2002, 35: 885-893.
url: http://dx.doi.org/10.1016/S0895-7177(02)00057-2
|
| [6] |
Rangarajan N, Shams T, Artis M, et al. Oblique and side impact performance of the THOR dummy [C]// Proceedings of the 2000 International IRCOBI Conference on the Biomechanics of Impact. Montpellier, France, 2000: 31-40.
|
| [7] |
Yoganandan N, Pintar F A. Responses of side impact dummies in sled tests[J]. Accident Analysis & Prevention, 2005, 37(3): 495-503.
|
| [8] |
Kapoor T, Altenhof W, Snowdon A, et al.A numerical investigation into the effect of CRS misuse on the injury potential of children in frontal and side impact crashes[J]. Accident Analysis & Prevention, 2011, 43(4): 1438-1450.
|
| [9] |
Schneider L W, Haffner M P, Eppinger R H, et al.Development of an Advanced ATD Thorax System for Improved Injury Assessment in Frontal Crash Environments [R]. SAE World Congress. Paper No. 922520. 1992.
|
| [10] |
NHTSA. CFR 49 Part 572: Anthropomorphic Test Devices[S]. 2010.
|
| [11] |
ISO/TR9790. Road Vehicles Anthropomorphic Side Impact Dummy: Lateral Impact Response Requirements to Assess the Bio-Fidelity of the Dummy[S]. International Standards Organization, American National Standards Institute. New York, NJ, 1999.
|
| [12] |
Shi Y B, Wu J P, Nusholtz G S. A Data-Based Model of the Impact Response of the SID [R]. SAE World Congress, Paper No.2000-01-0635, 2000.
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2014,
Vol. 54
