Reliability Analysis in Fatigue Strength of Connecting Rod

- Journal title : Transactions of the Korean Society of Mechanical Engineers A
- Volume 25, Issue 10, 2001, pp.1651-1658
- Publisher : The Korean Society of Mechanical Engineers
- DOI : 10.22634/KSME-A.2001.25.10.1651

Title & Authors

Reliability Analysis in Fatigue Strength of Connecting Rod

Kim, Cheol-Su; Lee, Jun-Hyeong; Kim, Jeong-Gyu;

Kim, Cheol-Su; Lee, Jun-Hyeong; Kim, Jeong-Gyu;

Abstract

It is necessary to evaluate fatigue strength and reliability of the connecting rod which is core part in automotive engine to assure the high level of durability of automobile. For this purpose, the loading conditions in automotive engine is obtained by the dynamic analysis. Based on these results, the critical section was identified by the finite element analysis. The fatigue strength under constant amplitude was evaluated and the mean of the fatigue limit at R = -2.27 derived from the staircase method was 311.2MPa. And the failure probability( Fp/ ) derived from the strength-stress interference model is 0.0003% at the 99.99% confidence level and the mean factor of safety was 4.2.

Keywords

Connecting clod;Staircase Test Method;Weibull Distribution;Strength-Stress Interference Model;Failure Probability;Mean Factor of Safety;

Language

Korean

References

1.

박찬희, 김민수, 이귀영, 1993, ' 이중 최적화기법을 이용한 컨넥팅로드의 형상 최적설계,' 대한기계학회논문집, Vol. 17, No. 4, pp. 776- 785

2.

McNeill, W. A., 1998, 'Dynamic Analysis of Connecting Rod Bolts,' SAE technical paper series, No. 881287

3.

Denman, H. M., 1991, 'Exact Solution for the Rigid Slider-Crank Mechanics with Gas Pressure,' Mech. Theory, Vol. 26, No. 4, pp. 415-420

4.

Webster, W. D., Coflell, R. and Alfaro, D. 1983, 'A Three Dimensional Finite Element Analysis of a High Speed Diesel Engine Connecting Rod,' SAE technical paper series, No. 831322

5.

조영갑, 1980, 'Connecting Rod 의 강도계산,' 대한기계학회지, Vol. 20, No. 6, pp. 442-447

6.

오서환, 이장무, 1985, '디이젤 엔진의 연결봉 에 대한 응력해석,' 대한기계학회논문집, Vol. 9, No. 4, pp. 471-477

7.

민동균, 김낙수, 전병희, 1995, '커넥팅 로드 소단부 파단의 해석,' 대한기계학회논문집, Vol. 19, No. 2, pp. 382-390

8.

박찬희, 1994, 내연기관 컨넥팅로드 해석에 관한 연구, 한국과학기술원 학위논문

9.

Vanderplaats, G. N. and Miura, H., 1986, 'Trend in Structural Optimization Some Considerations in Using Standard Finite Element Software,' SAE technical paper series, No. 860801

10.

Kuch, I. and Kummerlen, P., 1991, 'Potential for Lightweight Design of a Hybrid Connecting Rod for Automobile Applications,' SAE technical paper series, No. 910424

11.

조정환, 김재곤, 신동성, 1994, '중형디젤 엔진용 커넥팅 로드의 피로강도 평가,' The 8th Conference on Mechanical Behaviors of Materials, pp. 205-214

12.

Lawrence, J. F., 1965, 'Connecting-Rod Fatigue Testing,' ASME Paper 65-OGP-3, pp. 1-9

13.

Spindle, J. E. and Haibach, E., 1981, 'Some Consideration in the Statistical Determination of the Shape of S-N Curves,' Statistical Analysis of Fatigue Data ASTM STP 744, pp. 89-113

14.

Murty, A. S. R., Gupta, U. C., Radha Krishna A., 1995, ' A New Approach to Fatigue Strength Distribution for Fatigue Reliability Evaluation,' Int. J. Fatigue, Vol. 17, No. 2, pp. 85-89

15.

Eggert, R. J., 1994, 'Fatigue Life Simulation for Reliable Thick-Walled Cylinder Design,' Advanced in Design Automation, DE-Vol. 69-1, pp. 503-511

16.

Japan Society of Mechanical Engineers, 1994, Standard Method of Statistical Fatigue Testing, JSME S 002

17.

Dai, S. H. and Wang, M. O., 1992, Reliability Analysis in Engineering Application, Chapman and Hall(in London), pp. 12-60

18.

서호복, 1987, ' 신뢰성데이터의 해석법,' 자동차공학회지, Vol. 9, No. 3, pp. 23-35

19.

Abernethy, R. B., 1996, The New Weibull Handbook, 2nd Edition, SAE Professional Development, pp. 2-1~2-23

20.

Kececioglu D., 1993, Reliability and Life Testing Handbook, Prentice Hall (in USA), pp. 373-463