Journal of Auto-vehicle Safety Association (자동차안전학회지)

Korean Auto-vehicle Safety Association (한국자동차안전학회)
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Research of Structural Safety Tolerance for Wheelchair Bus Rollover Characteristics

휠체어 탑승 개조버스의 구조안전성능 연구

  • 신재호 (경일대학교 기계자동차학부) ;
  • 한경희 (경일대학교 기계자동차학부) ;
  • 김경진 (경일대학교 기계자동차학부) ;
  • 용기중 (경일대학교 기계자동차학부) ;
  • 강병도 (한국교통안전공단 자동차안전연구원)
  • Received : 2018.11.27
  • Accepted : 2018.12.20
  • Published : 2018.12.31
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Abstract

While the advanced trffic environment systems are developed recently, the traffic systems for transportation vulnerable are still under development and their social life are limited as well. In order to the secure their mobility rights, it had been required to set up the particular system for the traffic welfare. One of the significant items is the express bus operation for wheelchair users. Thus, the research of development and operation for express buses with wheelchair users was funded by the Korean government. Before the express bus development for wheelchair users based on the current bus model, this study set up the evaluation method for the bus rollover characteristics to ensure occupant safety using the finite element method. The partial bus model was developed corresponding to the full bus model response under rollover event and the evaluation method based on two model (full bus model and partial bus model) responses is planned to apply the model development of express bus modification for wheelchair users.

Keywords

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Fig. 1 Bus rollover accident(http://www.hankookilbo.com/News/Read/201611061298956703)

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Fig. 2 Bus rollover experiment(https://www.youtube.com/watch?v=KYm-L5i8_5o)

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Fig. 3 Test regulation of bus rollover (ECE R66)

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Fig. 4 Residual space for bus rollover test

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Fig. 5 The modified bus FE model for wheelchair users

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Fig. 6 The target locations of residual space in the rollover simulation

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Fig. 7 Bus FE model provided by NHTSA

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Fig. 8 Partial bus finite element model

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Fig. 9 Deformed shape of full bus model at 200 msec

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Fig. 10 Deformed shape of partial bus model at 200 msec

Table 1 Result comparisons of bending and torsional stiffness

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Table 2 Residual space comparison of rollover simulations

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Table 3 Information of the bus FE model

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References

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  11. 김태용, 심소정, 김시우, 강병도, 2017, "충돌모의(Sled) 시험에 의한 특별교통수단 휠체어 탑승자 상해에 관한 연구," Transaction of KSAE, Vol. 25, No. 2, pp. 140-148. https://doi.org/10.7467/KSAE.2017.25.2.140

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