This content is not included in your SAE MOBILUS subscription, or you are not logged in.
On Scaling Virtual Human Models
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 25, 2013 by SAE International in United States
Annotation ability available
The paper contributes to the development of virtual biomechanical human models as a support for design and optimization of both passive and active safety systems used in various modes of transportation. The paper shows the scaling methodology as simply as possible to creating models based on a reference model regarding anthropology and flexibility.
The paper describes the methodology for the scaling of hybrid human models based on a multi-body structure carrying deformable parts. The idea is to have a reference model and to create other models automatically based on the least possible number of parameters. The developed method takes into account the height, age, mass and flexibility of joints. The scaling process starts by scaling the reference model to the target height for given age (including correct height for each major segment of the human body) based on the available anthropometrical data. The scaling coefficient for each segment is also used to scale the segment mass. Secondly, the model mass is balanced to the target mass. Finally, the flexibility of all major joints is updated concerning the target age and available data.
CitationHyncik, L., Cechova, H., Kovar, L., and Blaha, P., "On Scaling Virtual Human Models," SAE Technical Paper 2013-01-0074, 2013, https://doi.org/10.4271/2013-01-0074.
- SAE International Surface Vehicle Information Report, “Performance Specifications for a Midsize Male Pedestrian Research Dummy,” SAE Standard J2782, Issued Oct. 2010.
- Bovenkerk, J., Sahr, C., Zander, O., Kalliske, I., “New Modular Assessment Methods for Pedestrian Protection in the Event of Head Impacts in the Windscreen Area,” ESV Technical Paper 09-0159, 2009.
- Maňas, J, Kovář, L., Petřík, J., Čechová, H., Špirk, S., “Validation of human body model VIRTHUMAN and its implementation in crash scenarios,” Proceedings of TMM 2012, doi: 10.1007/978-94-007-5125-5_46.
- Bláha, P., “Anthropometry of Czech and Slovak Population from 6 till 55 years,” 1985.
- Araújo, C.G., “Flexibility assessment: normative values for flexitest from 5 to 91 years of age,” Arq. Bras. Cardiol. 90(4): 257-263, 2008, doi: 10.1590/S0066-782X2008000400008.
- Clauser, C.E., McConville, J.T., Young, J.W., “Weight, volume, and center of mass of segments of the human body,” AMRL technical report, Wright Patterson Air Force Base, Ohio, 1969.
- Valenta, J., Konvičková, S., Valerián, D., “Biomechanics of Human Joints,” Czech Technical University, Prague, 1999 (in Czech).
- Martin, R., Saller, K., “Lehrbuch der Anthropologia,” Vol. I, Stuttgart (1957).
- Hynčík, L., Nováček, V., Bláha, P. Chvojka, O., Krejčí, P., “On scaling of human body models,” Applied and Computational Mechanics 1 (1): 63-76, 2007.
- Happee, R., van Haaster, R., Michaelsen, L., Hoffmann R., “Optimisation of vehicle passive safety for occupants with varying anthropometry,” ESV Technical paper 98-S9-O-03, 1998.
- Happee, R, Wismans, J., “Pedestrian protection full-body simulations, dummy validation,” VDA Technical Congress, 1999.
- Happee, R., Hoofman, M., van den Kroonenberg, A., Morsink, P. et al., “A Mathematical Human Body Model for Frontal and Rearward Seated Automotive Impact Loading,” SAE Technical Paper 983150, 1998, doi: 10.4271/983150.
- Happee, R., Ridella, S., Nayef, A., Morsink, P., de Lange, R., Bours, R., van Hoof J., “Mathematical human body models representing a mid size male and a small female for frontal, lateral and rearward impact loading,” International Conference on the Biomechanics of impact (IRCOBI), 2000.