Steering Wheel Tie Rod Fatigue Life Determination According to Turkish Mission Profiles

Öz

In this study, Turkish customer automobile usage was determined by a questionnaire in order to form the Turkish Mission profile for a LCV (light commercial vehicle). A comparison between Turkish customer usage and a of the European County’s mission profile was done.  Referencing sale percentage of this vehicle and the region of the failures come out on other model vehicles were produced before and also Turkey’s geographic and climate condition, a new test road was formed for this kind of vehicle. İn order to determine Turkey’s rods fatigue characteristics a road test executed.   About 50 road routes and some rough road’s fatigue characteristics were acquitted with a LCV (Light Commercial vehicle) equipped with sensors. Collected data were elaborated with a software program such as; spike analysis, frequency analysis, artihmethic manipulation etc.. After that the general load spectrum of Turkey’s roads belong to the steering wheel tie rod is formed. Rain-flow statistical counting method was applied steering wheel tie rod’s signals in order to make fatigue comparisons meaningfully and other application. Then Fatigue analysis of the steering wheel tie rod according to MP (Turkish mission profiles) were calculated by using FEA (Finite Element Analysis) and verified by the Palsmgren-Miner rule.

Anahtar Kelimeler

• Customer usage, steering wheel tie rod, finite element analysis, fatigue analysis, Palmgren-Miner rule

Kaynakça

1. J. P. Heyes, X. Lin, A. Buczynski, and M. Brown: Application of biaxial plasticity and damage modeling for the life prediction and testing of automotive components, Proc. of the 5th International Conference on Biaxial/Multiracial Fatigue and Fracture, Cracow, Poland 1997
2. V. Grubisic, Determination of load spectra for design and testing. International Journal of Vehicle Design, 1994. 15(1-2): pp. 8-26.
3. Case Study - Complete Customer Usage Profiling Example
4. N.W. Bishop and F. Sherratt, Finite element based fatigue calculations. USA (2000): NAFEMS. DOI:10.1111/j.1460-2695.1990.tb00604.x
5. NCode International Inc.&MSC Software Corporation : User manuel MSC Corporation ,Los Angles, USA(1998)
6. V.Grubisic, Criteria and methodology for lightweight design of vehicle components. 1986: Fraunhofer-Inst. für Betriebsfestigkeit.
7. K.Ahlin, J. Granlund, and F. Lindstrom, Comparing road profiles with vehicle perceived roughness. International Journal of Vehicle Design, 2004. 36(2-3): p. 270-286.
8. M.Fantacchiotti. and M. Vianello. Gradual improvement to the vehicle reliability up to the target value. in 4th International Conference ATA, Firenze. 1994.

9. P.Paul, et al., Techniques for Accelerated Design Validation of Tractor Chassis. 2001, SAE Technical Paper ,01 pp.1-50
10. F. D’Aprile, et al., Structural characterization of a vehicle on a rig test versus different road profiles: analysis of experimental results. ATA-TORINO-, 2001. 54(7/8): p. 251-261
11. C.Marchesani. F. Parmigiani, and M. Vianello (1979) Integrated method to define the mission profile of a passenger car ’FIAT Auto S.p.A., Study Report (in Italian)
12. V. Pizzari, Ricerca del profilo di Missione vetture segment B Turchia,. 1998: Turkish Ciklo Relazione Prot. No. 1 -1998, D.T.S.V. Affidabilita’ e Terreni Prova Laboratorio Misure (in Italian), Arese.
13. A.S.Sener, Fatigue life determination of the leaf spring on the light commercial vehicle according to Turkish Mission Profile (in Turkish). 2003, Yildiz Technical University.
14. A.S.Sener, Finite Element Based Vehicle Component Fatigue Life Assessment According to a Customer Usage Profile. Materials Testing, 2014. 56(3): p. 198-207.Magnetism, 3rd ed., vol. 2. Oxford: Clarendon Press, 1892, pp.68-73. (Book)
15. A.S.Sener, Fatigue life assessment of the driving shaft of a LCV by FEA using customer correlation data Materials Testing, 2016. 58(4): p. 325-332, DOI.10.3139/120.110861H.
16. A.Falah, M. Alfares, and A. Elkholy, Failure investigation of a tie rod end of an automobile steering system. Engineering Failure Analysis, 2007. 14 (5): p. 895-902.
17. M.A.Patil, D. Chavan, and M.K.U.S. Ghorpade, FEA of Tie Rod of Steering System of Car. International Journal of Application or Innovation Engineering and Management, 2013. 2(5): p. 222-227.
18. J.Kim, J. et al., Structural design of an outer tie rod for a passenger car. International Journal of Automotive Technology, 2011. 12(3): p. 375-381.
19. M.K.Pehlivan and M.Ozsoy, Computer aided structural analysis of rot head. Bilecik Şeyh Edebali Universitesi Fen Bilimleri Dergisi, 2014. 1(1): p. 45-51
20. Regulation on Warranty application basis ( in Turkish )
21. M.Gobbi and G. Mastinu, Expected fatigue damage of road vehicles due to road excitation. Vehicle System Dynamics, 1998. 29(S1): p. 778-788.
22. MSC. Software GmbH nSoft volumes 5.2 User Manuel. 1999.
23. ASTM Standard E 1049-85, Philadelphia, USA. 1997.
24. N.Bishop et al., ’Analytical Fatigue Life Assessment of Vibration Induced Fatigue Damage ‘. MSC World Users Conference, Universal City, CA, 1995.
25. SolidWorks. 2011.
26. ANSYS. 2012.
27. The Ncode Book of Fatigue Theory, Ncode Technical Reference Book V4.3. Document rel 1.0, MSC Corporation. 2000.
28. M.A.Miner, Cumulative damage in fatigue. Journal of applied mechanics, 1945. 12(3): p. 159-164.