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A Method to Identify the Difference in Kinematic Behavior of Human Model Lower Extremities with Respect to Muscle Activation During Crash Impact

  • Kishan Srinivas Indrani
  • Nils A. Hakansson
  • Hamid M. LankaraniEmail author
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 71)

Abstract

The main objective of this study is to develop a computational human musculoskeletal model, used to investigate the change in the kinematic behavior of the model’s lower extremities under the influence of activated (active) and deactivated (passive) muscles, during a representative frontal collision using the OpenSim software. Since OpenSim is seldom used in crash simulations, an appropriate model evaluation is performed by comparing the model’s kinematics, obtained from the OpenSim’s inverse dynamic simulation, against the LS-DYNA’s explicit non-linear side impact simulation of a finite element model for a car-pedestrian collision. The required musculoskeletal model is constructed in OpenSim and scaled to meet the requirements of the Hybrid III 50th percentile crash test dummy. For evaluating the developed model, the kinematics from both programs (OpenSim and LS-DYNA), containing identical displacement data, are compared by visual observation of identical time frames. Using the evaluated model in the forward dynamics domain of OpenSim, representative frontal crash simulations are conducted for the active and passive muscle states of the musculoskeletal model, and the kinematic differences in the human model’s lower extremities are extracted and compared.

References

  1. 1.
    Livermore Software Technology Corp (2017). Total Human Model for Safety—THUMS. http://www.lstc.com/thums
  2. 2.
  3. 3.
  4. 4.
    Flores, F., Lankarani, H.M.: Contact force models for multibody dynamics. In: Springer Book Series on Solid Mechanics and its Applications, vol. 226, 171p (2016)Google Scholar
  5. 5.
    Machado, M., Moreira, P., Flores, P., Lankarani, H.M.: Compliant contact force models in multibody dynamics: evolution of the Hertz contact theory. Mech. Mach. Theory 53, 99–121 (2012)CrossRefGoogle Scholar
  6. 6.
    Sasikumar, N.: Performance comparison of human and dummy models in various vehicle crash scenarios based on federal regulatory standards. Wichita State University, Wichita (2012)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Kishan Srinivas Indrani
    • 1
  • Nils A. Hakansson
    • 1
  • Hamid M. Lankarani
    • 1
    Email author
  1. 1.Wichita State UniversityWichitaUSA

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