Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
권호 표지
DOI QR코드

DOI QR Code

Review of Regulation for Rollover Test and Evaluation of Safety for Buses by using Simulation of Multi-body Dynamics

다물체 동역학 시뮬레이션을 통한 버스의 전복 시험 규정과 안전성 평가에 관한 고찰

  • Park, Seung Woon (Department of Mechanical Engineering, Inha University) ;
  • Choi, Yo Han (Department of Mechanical Engineering, Inha University) ;
  • Lee, Chul-Hee (Department of Mechanical Engineering, Inha University)
  • Received : 2022.05.25
  • Accepted : 2022.07.23
  • Published : 2022.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

In South Korea, to evaluate the rollover safety of domestic vehicles, the maximum slope angle of the vehicle is specified, which is verified by the rollover safety test of driving vehicles. However, the domestic rollover safety test is not suitable for buses, because the small amount of static stability factor (SSF) will invalidate the rollover experimental equation due to the high center of mass position of buses. To solve the above problems, a dynamic model of the bus is prepared with assumptions of mass and suspension spring properties. Subsequently, the maximum slope angle of the model was computed by using the simulation of multi-body dynamics, and the result was compared with actual test results to validate the dynamics model. Also, the rollover Fishhook (roll stability) test was conducted in the simulation for driving model. During the simulation, roll angle and roll rate were calculated to check if a rollover occurred. Through the rollover simulation of buses, the domestically regulated formula for rollover safety and the procedure of rollover test for driving vehicles are evaluated. The conclusion is that the present regulation of rollover test should be reconsidered for buses to ensure to get the valid results for rollover safety.

Keywords

Acknowledgement

이 논문은 2022년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원을 받아 수행된 연구임 (P0012769, 2022년 산업혁신인재성장지원사업)

References

  1. Ⓒ Ministry of Land, Infrastructure and Transport, 2021, "Reg. for Performance and Safety Standards of Motor Vehicle and Vehicle Parts MOLIT Ordinance No. 797".
  2. Ⓒ Ministry of Land, Infrastructure and Transport, 2020, "Regulations for New Car Assessment Program (NCAP), MOLIT Notification 2020-307, Article 5, Assessment Test Procedure"
  3. T.E. Chung, G.B. Kim, S.J. Hong, Y.R. Lee, C.S. Kim, Y.U. Cho, 1996, "A Study on Rollover Test Method of Bus Body Section", Transactions of The Korean Society Of Automotive Engineers, pp. 2~3
  4. Kia CORP, 2021, "Granbird_202111".
  5. Gillespie, T. D., 1992, "Fundamentals of vehicle dynamics", Warrendale, PA: SAE International, pp. 262~263.
  6. Bixel, R., Heydinger, G., Durise, N., Guenther, D. et al., 1995, "Developments in Vehicle Center of Gravity and Inertial Parameter Estimation and Measurement", SAE Technical Paper 950356.
  7. Zhilin Jin, Jingxuan Li, Yanjun Huang, Amir Khajepour, 2019, "Study on Rollover Index and Stability for a Triaxle Bus", Chinese Journal of Mechanical Engineering, Vol. 32, No. 64.
  8. Kwang Ho Han, Chul Hee Lee, 2021, "A Study on the Development of Personal Mobility for the Vulnerable Group", KSFC, Journal of Drive and Control 18(4), pp. 40~41
  9. Myoung Kook Seo, Hee Yong Shin, Ho Yeon Lee, Jea Il Ko, Enkhbaatar Tumenjargal, 2021, "Development of Onboard Scales to Measure the Weight of Trucks", KSFC, Journal of Drive and Control 18(1), pp. 9 https://doi.org/10.7839/KSFC.2021.18.1.009