타이어 요마크로부터 임계속도 추정의 불확실성 해석Analysis of Uncertainties in Estimation of Critical Speeds from Tire Yaw Marks
- Other Titles
- Analysis of Uncertainties in Estimation of Critical Speeds from Tire Yaw Marks
- Authors
- 한인환
- Issue Date
- Jul-2015
- Publisher
- 한국자동차공학회
- Keywords
- Yaw mark(요마크); Critical speed formula(임계속도공식); Braking level(제동단계); Parametric sensitivity(계수 민감도); Uncertainty analysis(불확실성 해석)
- Citation
- 한국자동차공학회 논문집, v.23, no.4, pp.361 - 370
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 23
- Number
- 4
- Start Page
- 361
- End Page
- 370
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/10738
- DOI
- 10.7467/KSAE.2015.23.4.361
- ISSN
- 1225-6382
- Abstract
- There will inevitably be errors and uncertainties in tire yaw mark related critical speed formula, which is derived merely from the relationship between the centrifugal force and the friction force acting on the point-mass vehicle. Constructing and measuring yaw marks through appropriate simulation works have made it possible to perform uncertainty analysis in calculation of critical speeds under variation of variety of conditions and parameters while existing yaw mark experimental tests have not performed properly. This paper does not present only the critical speed analysis results for parametric sensitivity and uncertainty of chord and middle ordinate, coefficient of friction and road grade, but also modeling uncertainty such as variation of braking level during turning and vehicle size. The yaw mark analysis methods and results may be now applied in practice of traffic accident investigation.
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Collections - College of Science and Technology > Department of Mechanical and Design Engineering > 1. Journal Articles
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