Conference article

Virtual Occupant Model for Riding Comfort Simulation

Hyung Yun Cho
Hongik University, Korea

Manyong Han
Hongik University, Korea

Akinari Hirao
Nissan Motor Co. Ltd, Japan

Hisayoshi Matsuoka
Nissan Motor Co. Ltd, Japan

Download articlehttp://dx.doi.org/10.3384/ecp1713227

Published in: Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Linköping Electronic Conference Proceedings 132:2, p. 27-34

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Published: 2017-07-04

ISBN: 978-91-7685-575-1

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

A digital human body model as a virtual occupant surrogate for the riding comfort simulation is developed for both 1D lumped network (Modelica) and 3D mesh based (Finite Element) solutions. Since the composition of 1D and 3D versions of the human body model has a similar multibody system architecture, the kinematic responses from both solutions are almost equivalent. The models are therefore complementary, since the economic 1D models can serve effectively in design exploration and optimization, while their sophisticated 3D counterparts can serve in final design validation. The detailed modeling process and validation results against standard seat vibration excitation test are introduced in this paper, preparing the models for use in seat design.

Keywords

Digital human body model, riding comfort simulation, 1D lumped network Modelica model, 3D mesh based Finite Element model, vibration excitation

References

H. Cheng, L. Obergefell and A. Rizer, The development of the GEBOD program, Biomedical Engineering Conference, Proceedings of the 1996 Fifteenth Southern, 1996.

H. Y. Choi, S.J. Sah, B. Lee, H.S. Cho, S.J. Kang, M.S. Mun, I. Lee, J, Lee, Experimental and numerical studies of muscular activations of bracing occupant. Proc. of Enhanced Safety of Vehicle, Washington D.C. USA, 2005

H.Y. Choi, K. Kim, C. Kim, S. Sah, S. Kim, S. Hwang, K. Lee, J. Pyun, N. Montmayeur, I. Lee, Challenge of Lumbar Support Design Using Human Body Models. SAE Int. J. Passeng. Cars - Mech. Syst. 1(1), 1078-1084, 2009

H.Y. Choi, M. Han, W. Lee, Active Elbow Joint Model. The First Japanese Modelica Conference, 2016

H.Y. Choi, M. Han, J. Park, K. Yang, Air ride seat for Heavy Duty Vehicle. 12th International Modelica Conference, submitted, 2017

H.Y. Choi, M. Han, A. Hirao, H. Matsuoka, Occupant kinematics at vibration excitations: Part I Pure rolling and pitching vibrations. In preparation, 2017

H.Y. Choi, M. Han, A. Hirao, H. Matsuoka, Occupant kinematics at vibration excitations: Part II Real road vibrations. In preparation, 2017

M. Han, H.Y. Choi, Elbow joint model with active muscle force, Journal of Mechanical Science and Technology 30/12 5847~5853, 2016

S. Kim, S. Hwang, K. Lee, J. Pyun, H.Y. Choi, K. Kim, S. Sah, N. Montmayeur, New Anthropometry of Human Body Models for Riding Comfort Simulation. SAE Technical Paper 2007-01-2457, 2007

N. Montmayeur, C. Marca, E. Haug, H.Y. Choi, S. Sah, Experimental and Numerical Analyses of Seating Pressure Distribution Patterns. SAE Technical Paper 2005-01-2703, 2005

K. Yamada, H. Motojima, Y. Kitagawa, T. Yasuki, Investigation of relations between occupant kinematics and supporting by the seat in lane change maneuvers. (In Japanese) Proceedings of JSAE spring conference, No.38-16, pp.941-946, 2016

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