| 제목 |
CAE를 이용한 자동차용 휠(wheel)의 피로수명 예측기법 연구 |
| 분야 |
차체 및 구조 안전 |
| 언어 |
Korean |
| 저자 |
김만섭(한국타이어), 고길주(한국타이어), 양창근(에이에스에이), 김정헌(한국타이어), 김관묵(에이에스에이) |
| Key Words |
Wheel(자동차용 휠), Patigue life(피로수명), Finite-element analysis(유한요소 해석), Rotary bending fatigue test(회전굽힘 피로시험), Regression line(회귀직선), Confidence interval(신뢰구간) |
| 초록 |
The fatigue life in wheels was predicted by simulating the experimental method using Finite-Element analysis. Based on a high frequency fatigue property, calculation of the stresses in wheels were performed by simulating the rotating bending fatigue test. Wheels made of an aluminum alloy(A356.2) were tested using a bending fatigue tester. Results from bending fatigue test showed a linear correlation between bending moment and stress amplitude. Consequently, Finite-Element calculations were performed by a linear analysis. In order to find stress-cycles curves, spoke parts of wheel were tested using a rotary bending fatigue tester. Also, highly accurate Finite-Element analysis requires regression lines and confidence intervals from these results. In conclusion, if the fatigue data related to the material and manufacturing procedure are reliable, the prediction fatigue life in wheels can be carried out with high accuracy.{{br}} |
| 원문(PDF) |
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