• Title/Summary/Keyword: Biofidelity

Search Result 4, Processing Time 0.017 seconds

Development of $5^{th}$ percentile female finite Element Model for Crashworthiness Simulation - Part II Detail Modeling of Internal Components (충돌 안전도 해석을 위한 $5^{th}$ percentile 성인 여성 유한요소 모델 개발 - Part II 신체 부위 별 상세 모델 개발)

  • 나상진;최형연;이진희
    • Journal of Biomedical Engineering Research
    • /
    • v.25 no.4
    • /
    • pp.283-288
    • /
    • 2004
  • The finite element modeling of small female occupant for crash simulation is presented in this paper subsequently to the part I of articulated rigid body model. The limbs and internal components are additionally modeled by joining them to the articulated rigid body model for predicting the crash injuries such as bone fractures and joint dislocations. The behavioral characteristics of each limbs and internal components were validated against available cadaveric test results. Accordingly, the human model proposed in this paper could be utilized for the investigation of impact injury mechanism and further complement the lacking biofidelity of current crash dummy.

Construction and Evaluation of Scaled Korean Side Impact Dummies

  • Kim, Seong-Jin;Kwon Son;Park, Kyung-Hyun
    • Journal of Mechanical Science and Technology
    • /
    • v.17 no.12
    • /
    • pp.1894-1903
    • /
    • 2003
  • It is necessary to have a dummy that describes the anthropometry of a victim with accuracy. This study presents three scaled side impact dummies constructed for the use of MADYMO. They represent five, fifty and ninety-five percentile Korean males ranged from the age of 25 through 39. Thirty-five anthropometric data were used to scale input files required for MADYSCALE. Geometries, inertia, joints and other parameters for dummies were scaled based on the configurations of EuroSID-1. This study proposes the lateral impact response requirements for head, thorax and pelvis of Korean side impact dummies. A lateral drop impact test was conducted for the head at the height of 200 mm. Lateral pendulum impact tests were also carried out for thorax and pelvis at three specific impact velocities. All these test results were obtained from simulation based on MADYMO. All the procedures of the three tests followed the requirement of ISO/TR 9790.

Injury Optimization Study of WorldSID and EuroSID2re under Pendulum Loadings (진자시험을 통한 EuroSID2 및 WorldSID 더미의 상해 최적화 연구)

  • K.S. Choi;K.S. Jeong;K.C. Kim;B.R. Ham
    • Journal of Auto-vehicle Safety Association
    • /
    • v.6 no.1
    • /
    • pp.41-47
    • /
    • 2014
  • A new dummy has improved biofidelity from Fair to Good compare with EuroSID2re which is currently used for regulation tests and NCAP tests. Some instrumentation of each body region has been changed to measure the assessment of injury risk. The objective of this study is to find out the injury characteristic of each dummy and to calculate the relation between external force and injury for each dummy with pendulum tests. Finally, this study suggests the optimized external force to meet consumer tests. A new dummy named WorldSID for side impact will be introduced into EuroNCAP tests after 2015. Korea government is also planning to adopt WorldSID at KNCAP tests from 2017 and Global Technical Regulation (GTR) will also adopt WorldSID to oblique side pole crash.

The Study on influence of test factors for WorldSID injury through AE-MDB side crash test (AE-MDB시험 시 인체모형 상해치에 대한 시험 인자 영향성 연구)

  • Sun, Hongyul;Han, Pyokyong;Oh, Eunkyung;Yoon, Ilsung
    • Journal of Auto-vehicle Safety Association
    • /
    • v.7 no.1
    • /
    • pp.7-12
    • /
    • 2015
  • NCAP(New Car Assessment Program) makes vehicle manufacturer improve safety performance through free competition and customers guarantee vehicle selection by providing information of vehicle safety. That's why it is important not only to meet the regulation, but also to cope with NCAP. EuroNCAP(European New Car Assessment Program) side tests have conducted by using Progressive MDB and Euro SID II in order to reproduce crash test between two vehicles over 10 years. However various researches report that Progressive MDB and Euro SID II do not reflect evolving vehicle design, impact performance and biofidelity of human. Therefore EuroNCAP has the plan to conduct AE-MDB side crash test using WorldSID which is more evolved from 2015 by replacing Progressive MDB and EuroSID II. Automobile manufacturers need to develop safety performance for new test closely. This paper is to find test set-up parameters which affect into dummy injury instead of restraint system and to research on its tendency. It is processed with mini and small car to know influence as changing vehicle size and also analyzed by DFSS(Design for six sigma) which is one of optimization tools. DFSS is vaildated by simulating CAE with L18 orthogonal array of 6 control factors adjustable as EuroNCAP requirement.