Bozuk Yol Verileri Kullanarak Bir Yaprak Yayın Yorulma Ömrünün SEA ile Değerlendirilmesi

Araçlardaki yorulma kaynaklı hataları genelde uzun zamanda yani yüksek kmler de ortaya çıkan, hem müşteri hem de üretici firmanın karşılaşmak istemediği ciddi bir kalite hatasıdır. Bu makale de hafif bir ticari oto için üretici firma yakınlarında oluşturulmuş olan güvenilirlik ve yorulma testleri parkurlarından en ağır olanının yol profil karakteristiği ipli bir potansiyometre ile ölçümü ve kullanılabilir hale getirilmesi için veri işlemesi yapılmıştır. Ardından sol arka yaprak yayının bilgisayar programı ile modellenmesi, meshlenmesi, statik analizleri ile yorulma analizinin Sonlu Elemanlar Analizi yöntemi vasıtasıyla hesaplanması yapılarak bu yaprak yayın yorulma hayatının değerlendirilmesi yapılmıştır.

Fatigue Life Evaluation of a Leaf Spring by FEA Using Rough Road Data

Fatigue-related faults in vehicles usually occur over a long period of time, ie; high km, both the customer and the manufacturer does not want to encounter is a serious quality error. In this article, data processing has been carried out to measure and make available the heaviest of the reliability and fatigue test tracks that have been established in the vicinity of the manufacturer for a light commercial car with a rope potentiometer. Then, the computerized modeling, meshing, static analysis and fatigue analysis of the left posterior leaf spring were calculated by Finite Element Analysis method and the fatigue life of this leaf spring was evaluated.

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[1] P.Heyes,X.Lin,A.Buczynski,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, Polland(1997)
[2] R.Kuota, D.Play, Correlation procedures for fatigue life determination, Journal of Mechanical Design, Transactions of the ASME 121 ( 1999),PP.289-296
[3] P.K.Paul,R.K.Dunga,A.Verma,A.V.Minakar,S.Raju: Techniques for accelerated design validation of tractor chasiss,SAE Paper 01(2001),pp.1-50
[4] V.Grubisic, Determination of load spectra for design and testing, International Journal of Vehicle Design 15 ( 1994), pp.8-26
[5] Case Study – Complete customer usage profiling example raw data through track correlation to accelerated rig drive in 4 days, Iveco, Italy, nCode , UK, (1999)
[6] D.Filippo, M Macro, B.Thomas, R.Christophe, Structural characterization of vehicle on a rig test versus different road profiles analysis of experimental results, LMS International, Belgium Vol. 54 (2001), pp. 251-258
[7] M.Fantacchiotti, M.Vianello, Gradual improvement of the vehicle reliability up to the target value, FIAT Auto SpA Design Engineering Department, 4th International Conference (1994)
[8] C.Marchesani, F.Parmigiani, M.Vianello, Integrated method to define the mission profile of a passenger car, FIAt Auto SpA (1979), pp. 45-54 (in Italian)
[9] M.Fantacchiotti, M. Vianello, Accelerated reliability test for vehicles and correlation with actual use, Proceeding of the 3rd International Conference ATA Innovation and Reliability in Automotive Design and Testing (1992), pp.1-9
[10] Y.S.Kong, M.Z.Omar, L.B.Chu, S.Abdullahac Fatigue life prediction of parabolic leaf spring under various road conditions, Engineering Failure Analysis Volume 46, November 2014, Pages 92-103 https://doi.org/10.1016/j.engfailanal.2014.07.020
[11] P. Borkovic, B.Sustarsic, B.Susec, M.Malesevic, B.Zuzec,B.Podgornik,V.Loskovsec Fatigue Life Behaviour and a lifetime assessment of a double leaf spring using fem based software UDK 620.178.3:519.61/.64 ISSN 1580-2949 Original scientific article/Izvirni znanstveni ~lanek MTAEC9, 46(4)345(2012)
[12] B. Ozmena, B.Altiok, A. Guzel, İ. Kocyigit, S. Atamera, A novel methodology with testing and simulation for the durability of leaf springs based on measured load collectives’’3rd International Conference on Material and Component Performance under Variable Amplitude Loading, VAL2015, Elsevier : Procedia Engineering 101 (2015) 363–371 : Available online at www.sciencedirect.com
[13] M. M. Shokrieh, D. Rezaei , Analysis and optimization of a composite leaf spring, Elsevier www.elsevier.com/locate.compostruc.Composite Structures 60 (2003) 317–325
[14] A.Ş.Şener: Finite element based vehicle component fatigue life assessment according to a customer usage profile, Materials Testing V 56 (2014) pp. 198-207
[15] ANSYS nCode Design Life 14.5
[16] A.Ş.Şener, Fatigue life determination of the leaf spring on the light commercial vehicle according to Turkish Mission Profile ( in Turkish ), Istanbul, Turkey (2003)
[17] A.Ş.Şener,. (2018). Müşteri Korelasyonuna Göre Hafif Bir Ticari Otonun Yorulma Test Parkurunun Oluşturulması. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji, 6 (2), 345-357. DOI: 10.29109/http-gujsc-gazi-edu-tr.356835
[18] Solidworks (2018)
[19] Ansys Workbench 14.5
[20] N.W.M. Bishop, F. Sherratt, Finite element based fatigue calculation, NAFEMS- International Association for the Engineering Analysis Community LTD, www.nafems.org.2000
[21] The Ncode Book of Fatigue Theory, Ncode Technical Reference Book V 4.3, Document rel1.0, (2000)
[22] Excell (2016)
[23] M.A.Miner, Cumulative damage in fatigueMagnetics® Databook