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Träfflista för sökning "WFRF:(Krafft Maria) srt2:(2000-2004)"

Sökning: WFRF:(Krafft Maria) > (2000-2004)

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1.
  • Boström, Ola, 1963, et al. (författare)
  • Comparison of car seats in low speed rear-end impacts using the BioRID dummy and the new neck injury criterion (NIC).
  • 2000
  • Ingår i: Accident Analysis and Prevention. ; 32:2, s. 321-328
  • Tidskriftsartikel (refereegranskat)abstract
    • Long-term whiplash associated disorders (WAD) 1-3 sustained in low velocity rear-end impacts is the most common disability injury in Sweden. Therefore, to determine neck injury mechanisms and develop methods to measure neck-injury related parameters are of importance for current crash-safety research. A new neck injury criterion (NIC) has previously been proposed and evaluated by means of dummy, human and mathematical rear-impact simulations. So far, the criterion appears to be sensitive to the major car and collision related risk factors for injuries with long-term consequences. To further evaluate the applicability of NIC, four seats were tested according to a recently proposed sled-test procedure. 'Good' as well as 'bad' seats were chosen on the basis of a recently presented disability risk ranking list. The dummy used in the current tests was the Biofidelic Rear Impact Dummy (BioRID). The results of this study showed that NICmax values were generally related to the real-world risk of long-term WAD 1-3. Furthermore, these results suggested that NICmax calculated from sled tests using the BioRID dummy can be used for evaluating the neck injury risk of different car seats.
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2.
  • Linder, Astrid, 1959, et al. (författare)
  • Acceleration pulses and crash severity in low velocity rear impacts—real world data and barrier tests
  • 2001
  • Ingår i: ESV Conference. Amsterdam, The Netherlands.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Dummy responses in a crash test can vary depending not only on the change of velocity but also on how the impact was generated. Literature reporting how acceleration pulses can vary in cars impacted in different configurations is limited. The aim of this study was to collect and categorise different acceleration pulses in 3 different types of rear collision. The acceleration pulse resulting from a solid, 1000 kg, mobile barrier test at 40% overlap and an impact velocity of 15 km/h was studied for 33 different cars. Seven cars were impacted at 100% overlap at higher impact velocities using the same mobile barrier. Acceleration pulses from two different car types in real-world collisions producing a similar change of velocity were also analysed.The results from the barrier tests show that a similar change of velocity can be generated by a large variety of pulse shapes in low velocity rear impacts. The results from real-world collisions showed that a similar change of velocity was generated in different ways both in terms of peak and mean acceleration. The results of this study highlight the importance of knowing the acceleration pulse both when evaluating the severity of a real world crash and when designing test methods for evaluating vehicle safety performance in low velocity rear-end impacts, particularly in respect of soft tissue neck injuries.
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