Estimation of fatigue damage caused by actual roads and maneuvers on proving ground

• Autorzy: Farrahi G. H. , Khalaj A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The objective of this paper is to estimate the cumulative fatigue damage in a vehicle component and to calculate the number of cycles driven on the proving ground to achieve the equivalent accumulated fatigue damage in design life. Design/methodology/approach: In order to achieve our objective, using ADAMS software, standard roads and proving ground events on which the vehicle model was to be driven were simulated. The load time history results were applied to an FEM model created in MSC/Nastran. Modal transient dynamic analysis was used to obtain the stress time history in the test component. Findings: The results showed that fast cornering has a greater damage effect than slow and moderate cornering. For primary evaluation of fatigue life (in our case) the cornering analysis is sufficient. The proving ground events had much more destruction effect than actual roads as the fatigue damage accumulated on our test component. Driving 1568 cycles (2462 km) on a proving ground was equal to driving 200000 km on actual roads. Research limitations/implications: The next stage in this research may be to study the effect of dimensions of proving ground events on accumulated fatigue damage. Practical implications: By using CAE and VPG the time and cost of developing the new models of vehicles decreases. Originality/value: The number of cycles which should be driven on the studied proving ground to achieve the accumulated fatigue damage in design life has been esimated.

Słowa kluczowe

EN

numerical technique; fatigue; proving ground; FEM; finite element method; ADAMS

PL

technika numeryczna; zmęczenie; poligon; MES; metoda elementów skończonych; ADAMS

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 14, nr 1-2
• Strony: 90--96
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Farrahi G. H.

• School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran

autor

Khalaj A.

• Automotive Industries Research and Innovation Center of Saipa, Iran

Bibliografia

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• [2] F. Aslani, M. Yatheendar, R. H. Visintainer, D. S. Rohweder, J. L. de Alda, Simulation of proving ground events for heavy truck cabs using ADAMS,MSC/NASTRAN and P/FATIGUE”, MSC 1994 World Users Conference Proceedings.
• [3] Y. Zhang, A. Tang, T. Palmer, C. Hazard, Int. J. Vehicle Design, 21 (1999) 450-470.
• [4] J. H. Canova, Vehicle design evaluation using the digital proving ground, SAE 2000-01-0126.
• [5] J. Y. Wong, Theory of ground vehicles , John Wily& Sons, 1993
• [6] MSC/NASTRAN Dynamic analysis handbook , Mac-Neal Swindler Corporation, 1994.
• [7] J. A. Bannantine, J. J. Comer, J. L. Handrock, Fundamentals of metal fatigue analysis, Prentice Hall, 1990.
• [8] Fatigue and fracture, ASM Handbook, Vol 19, ASM International, 1996.
• [9] P/FATIGUE User manual, November 1990.
• [10] SAE J1099, Technical report on low cycle fatigue properties ferrous and non-ferrous materials, 1998.
• [11] P. Lukin, G. Gasparyants, V. Rodionov, Automobile chassis design and calculations, MIR Publisher, Moscow, 1989.