Modeling of vehicle seat in lumped network model for ride comfort simulation

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...

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Bibliographic Details
Published inJournal of mechanical science and technology Vol. 35; no. 1; pp. 231 - 236
Main Authors Han, Man Yong, Choi, Hyung Yun, Hirao, Akinari
Format Journal Article
LanguageEnglish
Published Seoul Korean Society of Mechanical Engineers 2021
Springer Nature B.V
대한기계학회
Subjects
Control
Dynamical Systems
Engineering
Finite element method
Industrial and Production Engineering
Mathematical models
Mechanical Engineering
Original Article
Passenger comfort
Polyurethane foam
Robustness (mathematics)
Strain rate
Vibration
기계공학
Ride comfort
Active human body model
Lumped network model
Vehicle seat
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Summary: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.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-020-1222-0