Integration of muscle tone into a multi-body head-and-neck model for crash applications


Himmetoğlu S.

26th International Scientific Conference Transport Means 2022, Kaunas, Litvanya, 5 - 07 Ekim 2022, ss.27-32 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Kaunas
  • Basıldığı Ülke: Litvanya
  • Sayfa Sayıları: ss.27-32
  • Hacettepe Üniversitesi Adresli: Evet

Özet

This paper presents an improvement of a multi-body head-and-neck model of a 50th percentile male by integrating muscle tone into the model. The head-and-neck model which was previously validated, worked in dynamic crash conditions but was not able to provide static equilibrium at rest. Lagrange's equations are applied to calculate the required torques to be applied by virtual motors at each intervertebral joint so that the head-and-neck model can maintain its posture when it is at rest. The developed formulation is successfully validated by running simulations with the head-and-neck model at different orientations. In the second part of the study, the model with and without muscle tone are subjected to rear impact by using data from JARI (Japanese Automobile Research Institute) volunteer tests. Both models are able to follow the responses of the volunteers successfully but the model with muscle tone exhibits better responses especially in the second half of the impact. The results indicate the benefits of including muscle tone in crash applications since it produces a more realistic moment distribution in the head-and-neck model.