Structural Strength and Fatigue Life Calculation of Y32 Bogie Frame by Finite Element Method

Özsoy, Murat; Pehlivan, K.; Fırat, Mehmet; Özsoy, Neslihan; Uçar, Vahdet

doi:10.12693/aphyspola.128.b-327

Cited by 9 publications

(4 citation statements)

References 3 publications

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“…The method, Finite Element Analysis (FEA) which is developed by NASA, that helps to simulate mechanical components and systems to get information about failure, deformation and stresses under some various kind of loadings or conditions [5,6,8,9]. In fact, the life determination of the structures after this method was also carried out by fatigue analysis [14]. In mechanics, the static state can be defined as the state of a system in equilibrium under balanced forces and torques.…”

Section: Methodsmentioning

confidence: 99%

Determination of The Cross Types to be used in a Trailer Chassis by Finite Element Method

Sevin¹,

Şahin²

2019

International Journal of Computational and Experimental Science and Engineering

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Cargo transportation is done by airway, railway, maritime line and highway according to time and cost criteria. Trailers are widely used in highway transportation which is one of these cargo transportation types. Depending on the amount and variety of loads, the trailers vary among themselves. In addition to this diversity, it is desirable that a trailer should be lightweight and at the same time strong as far as transport safety and transport costs are concerned. When all these factors come together, serious research and development activities are required from the design stage to the final stage of manufacturing. One of the R&D phases is computer aided engineering analyzing. Without requiring material, labor and time, a design can be tested in virtual environment under certain boundary conditions before physical validation. Crosses, which are the one of the main carrier components in a trailer structure, between the longeron (main beam) and the frame, that exist perpendicular to these components, has been investigated in this study by taking into consideration of 1 g static loading, 0.8 g braking and torsion scenarios. In this study, the essential criteria are displacement and stress values of these crosses which have different geometries (cross-sections). Comparisons were made according to the results and in the light of these information, the finite element analysis results of the combination of the chosen crosses to be used in the production of the trailers were evaluated.

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Section: Methodsmentioning

confidence: 99%

Determination of The Cross Types to be used in a Trailer Chassis by Finite Element Method

Sevin¹,

Şahin²

2019

International Journal of Computational and Experimental Science and Engineering

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“…Finite element analyses have recently been used for many purposes, such as structural strength analyses, fatigue life calculations, thermal modelling and design improvements [8][9][10][11][12]. In the present study, finite element analyses are utilized for sheet metal forming simulations.…”

Section: Finite Element Analysismentioning

confidence: 99%

Influence of Press Ram Pulsation on Deep Drawability of Dual Phase Steel Sheet

Olguner

Bozdana

2017

Acta Phys. Pol. A

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A study of the influences of press ram pulsation on deep drawability of dual phase steel sheet is presented. General characteristics of deep drawing process, press ram pulsation technique and dual phase steels are briefly discussed. A finite element model is used to evaluate the influence of pulse motion profile of press ram on the thickness reduction of steel sheet and forming load. Commercial finite element software package DEFORM-3D is used for modelling and simulation of cylindrical cup drawing. The effects of superimposed low frequency vibrations of the press ram are investigated. Pulsation amplitudes of 0.5, 0.25, and 0.125 mm are created on the die with the corresponding pulsation frequencies of 5, 10, and 20 Hz. Finite element simulations are carried out using material model of dual phase (DP600) steel, that is one of the most widely used materials in automobile industry, in order to improve crash safety and fuel economy. Results obtained with press ram pulsation are compared with results for the conventional press ram motion and significant effect of proposed method is demonstrated.

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“…A PDCS system for a complete analysis can be analyzed using numerical methods Finite elements (FEM), Boundary elements (BEM) or Finite differences (FD) methods. However, programs which uses Finite elements (FEM), Boundary elements (BEM) or Finite differences (FD) methods are expensive and also takes time to input the system parameters or physical dimensions and they also require some practice [11,12]. This paper examines the cooling of such a PDCS device using lumped-parameter thermal circuit model.…”

Section: Introductionmentioning

confidence: 99%

Darbeli DC Sinterleme Sistemi Konteynerinin Soğumasına Yönelik Termal Devre Modeli

Yener¹,

Yener²,

Mutlu³

2019

Academic Platform Journal of Engineering and Science

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Pulse DC Sintering System (PDCS) is a cheap and quick way of producing different types of materials. After sintering of the sample, the cooling of the PDCS container is needed before taking it out. The sample production time is the sum of the sintering and the cooling time. Therefore, estimation of the sample cooling time must be made accurately to model sample production. Its container dimensions and the material, it is made of, determines its temperature during cooling. In this paper, a thermal circuit which models a pulse DC sintering system container during cooling is given. Its thermal circuit model is made assuming that some heat leaks from the steel container to the cooper bars, the copper bars and the container all have natural convection and also radiate heat to cool down. The thermal model is described with a set of nonlinear state-space equations. The state-space equations are solved numerically using Runge-Kutta 4 method. The time required to make the sample cool down to ambient temperature is calculated using simulations. The temperatures of the container and the copper bars of an PDCS system are measured to find the experimental cooling time. The results are compared. The PDCS thermal model is able to verify the experimental results. It has also been experimentally shown that the cooling time is not dependent on the sample type produced for the examined PDCS system. Such a model can be easily implemented in an engineering software which aims to model the sample production process of the PDCS system and can also be used for its optimization considering its physical parameters such as dimensions, electrical and mechanical constants etc. ÖzDarbe DC Sinterleme (PDCS), darbe genlik modülasyonlu doğru akım kullanarak farklı tipte malzemelerin ucuz ve hızlı biçimde üretilmesini sağlayan bir yöntemdir. Bu yöntemde numunenin sinterlenmesinden sonra, PDCS konteynerinin soğuması gerekir. Toplam üretim süresi sinterleme ve soğuma süresinin toplamıdır. Bu nedenle, numune üretim zamanını modellemek için numune soğuma süresinin belirlenmesi gereklidir. Kalıp boyutları ve üretilen malzeme, soğuma sırasındaki sıcaklığı belirler. Bu çalışmada, soğuma sırasındaki elektrik akım destekli sinterleme sistemi konteynerini modelleyen bir termal devre sunulmuştur. Isı devresi modeli, çelik konteynerden bakır baralara ısı transferi olduğu; bakır baralar ve konteynerin soğuma için doğal taşınıma sahip yayınım ile ısı yaydığı yaptığı kabulüyle oluşturulmuştur. Termal model, doğrusal olmayan durum-uzay denklemleri ile tanımlanmış ve denklemler numerik olarak Runge-Kutta 4 metodu kullanılarak çözülmüştür. Numunenin ortam sıcaklığına kadar soğuması için gereken süre simülasyonlar kullanılarak hesaplanmıştır. Elde edilen sonuçlar, konteyner ve bakır bara sıcaklıkları

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Structural Strength and Fatigue Life Calculation of Y32 Bogie Frame by Finite Element Method

Cited by 9 publications

References 3 publications

Determination of The Cross Types to be used in a Trailer Chassis by Finite Element Method

Determination of The Cross Types to be used in a Trailer Chassis by Finite Element Method

Influence of Press Ram Pulsation on Deep Drawability of Dual Phase Steel Sheet

Darbeli DC Sinterleme Sistemi Konteynerinin Soğumasına Yönelik Termal Devre Modeli

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