Abstract
Compared to the mesh-based finite element modeling, the lumped-network modeling is more useful for the multi-physical system and the simulation of many design variants. A non-uniform discretization of the seat surface into planar multi-patches is introduced for reproducing beneficial features of FEM by a lumped-network approach. These multi-patches are individually attached to the seat frame by visco-elastic polyurethane (PU) foam elements, which can handle the strain rate effect and the hysteresis. This approach is a mimicking the FEM concept while keeping the computational robustness of the Modelica solution.
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Man Yong Han is a Post-doctor of the Digital Human Lab. He received his Ph.D. in Mechanical Engineering from Hongik University. His research interests include injury biomechanics, ride comfort, and digital human body modeling.
Hyung Yun Choi is a Professor at Digital Human Lab, Mechanical System Design Engineering Department of Hongik University. He received his Ph.D. in Mechanical Engineering from Stanford University. His research interests include injury biomechanics, ride comfort, and digital human body modeling.
Akinari Hirao is a Senior Manager at HMI and Ergonomics Testing, Nissan Motor, Co., Ltd. He received his Ph.D. in Integrated Design Engineering from Keio University. His research interests include physical and cognitive ergonomics, seating, biomechanics, and digital human body modeling.
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Han, M.Y., Choi, H.Y. & Hirao, A. Modeling of vehicle seat in lumped network model for ride comfort simulation. J Mech Sci Technol 35, 231–236 (2021). https://doi.org/10.1007/s12206-020-1222-0
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DOI: https://doi.org/10.1007/s12206-020-1222-0