On Scaling Virtual Human Models

Hynčík, Luděk; Čechová, Hana; Kovář, Luděk; Bláha, Pavel

doi:10.4271/2013-01-0074

Cited by 22 publications

(21 citation statements)

References 4 publications

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“…The current model Virthuman [7,15], see Fig. 1, concerns the skeleton of the whole model created as MBS and the skin surface segmented into the rigid surface parts (so called superelements) interconnected by strips of elements without any mechanical response.…”

Section: Basic Modelmentioning

confidence: 99%

“…The Virthuman model is scaled to the THUMS anthropometry (175 cm, 77 kg [8]). Since the scaling algorithm desires age [7], the age group chosen is 30-35 years, because there the average height (percentile 50) equals to 176 cm and average mass equals to 78 kg, which are the closest values for scaling.…”

Section: Impact Testingmentioning

confidence: 99%

“…Virthuman [7,15] is a fully validated scalable virtual hybrid biomechanical human body model coupling the basic MB structure (MBS) with deformable segments, resulting in short calculation time, hence it is suitable for calculating longer impact scenarios, which VRU generally are.…”

Section: Introductionmentioning

confidence: 99%

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Virtual hybrid human body model for PTW safety assessment

Hynčík

Bońkowski

Vychytil

2017

ACM

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Road traffic accidents cause one of the highest numbers of severe injuries. The numbers of deaths and seriously injured citizens prove that traffic accidents and their consequences are still a serious problem to be solved. Virtual human body models play an important role to assess injuries during impact loading especially for scenarios, where complex dynamical loading is taken into account. The most suffering group is so called vulnerable road users (VRU) like powered two-wheelers (PTW) riders. The presented work contributes to increasing safety of PTW riders by implementing virtual human body model for injury risk analysis. The scalable hybrid virtual human body model Virthuman, which was formerly developed, validated and demonstrated in impact scenarios, is improved by updated neck and shoulder models in order to describe the realistic kinematics during complex long duration impact loading and presented in the oblique impact scenario compared to the THUMS results.

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Section: Basic Modelmentioning

confidence: 99%

Section: Impact Testingmentioning

confidence: 99%

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Virtual hybrid human body model for PTW safety assessment

Hynčík

Bońkowski

Vychytil

2017

ACM

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“…human body models) are widely open. One of such multi-purpose virtual human body models, which potentially could become a very powerful research tool, is a special model called the VIRTHUMAN [11][12][13]. The whole model, as well as its particular segments, has been validated based on the available experimental data [13], which proved its accuracy to simulate human body dynamic response under condition typical for car crashes, but it is not validated for loads with predominant vertical component (loads acting along spinal column), typical for airplane crashes.…”

Section: Warsaw University Of Technology Institute Of Aeronautics Anmentioning

confidence: 99%

“…9). For details on scaling of the VIRTHUMAN model see [12]. To ensure biofidelity of the model, extensive validation tests were performed.…”

Section: Virtual Human Body Model -Virthumanmentioning

confidence: 99%

Numerical Tests of the Virtual Human Model Response Under Dynamic Load Conditions Defined in Federal Aviation Regulation Part 23.562 and 25.562 – Preliminary Study

Lindstedt

Vychytil

Dziewoński

et al. 2016

Archive of Mechanical Engineering

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The main aim of the presented research was to check mechanical response of human body model under loads that can occur during airplane accidents and compare results of analysis with some results of experimental tests described in literature. In simulations, new multi-purpose human body model, the VIRTHUMAN, was used. The whole model, as well as its particular segments, was earlier validated based on experimental data, which proved its accuracy to simulate human body dynamic response under condition typical for car crashes, but it was not validated for loads with predominant vertical component (loads acting along spinal column), typical for airplane crashes. Due to limitation of available experimental data, the authors focused on conducting calculations for the case introduced in 14 CFR: Parts 23.562 and 25.562, paragraph (b)(1), knowing as the 60 • pitch test. The analysis consists in comparison of compression load measured in lumbar section of spine of the FAA HIII Dummy (experimental model) and in the Virthuman (numerical model). The performed analyses show numerical stability of the model and satisfactory agreement between experimental data and simulated Virthuman responses. In that sense, the Virthuman model, although originally developed for automotive analyses, shows also great potential to become valuable tool for applications in aviation crashworthiness and safety analyses, as well.

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Numerical Approaches to Pedestrian Impact Simulation with Human Body Models: A Review

Wdowicz

Ptak

2023

Arch Computat Methods Eng

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The review paper discusses numerical human body models of pedestrians. The background of current trends in physical and mathematical pedestrian research is presented. Development, validation and areas of application of pedestrian body models are described. The differences between multibody models and finite element models are presented. Accident-based and experimental approaches to validation of the models are discussed. As a novelty, this paper presents an overview of multibody models used in forensic investigations, discusses their usefulness, and differences between their design and the design of more advanced multibody and finite element models. Finally, the most recent trends in human body modelling are discussed, including open-source approaches to model distribution and replacement of physical tests by digital simulations.

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On Scaling Virtual Human Models

Cited by 22 publications

References 4 publications

Virtual hybrid human body model for PTW safety assessment

Virtual hybrid human body model for PTW safety assessment

Numerical Tests of the Virtual Human Model Response Under Dynamic Load Conditions Defined in Federal Aviation Regulation Part 23.562 and 25.562 – Preliminary Study

Numerical Approaches to Pedestrian Impact Simulation with Human Body Models: A Review

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