Consideration of fatigue life optimization of pulley in power-steering system

Shim, Hee-Jin; Kim, Jung-Kyu

doi:10.1016/j.msea.2006.09.188

Cited by 11 publications

(4 citation statements)

References 2 publications

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“…Based on the previous research [8,9], it was assumed in this study that the friction force between V-belt and clutch pulley has a negligible effect on the applied stress for durability analysis. The stress analysis for the clutch pulley was investigated to the critical region for the applied load.…”

Section: (A) and (B)mentioning

confidence: 99%

Durability analysis of an automotive component in consideration of inhomogeneous hardness

Shim

Kim

2011

J Mech Sci Technol

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For the reliability of automotive components, it has to satisfy the dimension accuracy and the strength design requirements for part that has the consistent strength distribution. Since it has the defect due to actual manufacturing process and inhomogeneity of material, the strength design requirement should be not satisfied. In this way, verification of analysis and prediction of fatigue life was very difficult from difference of the failure region. The cold forging products generally has heterogeneity of strength, hardening and fatigue resistance. Therefore, it's important to understand the characteristics of material strength and fatigue of cold forging products considering heterogeneous effect in order to do durability analysis. In this study, in order to propose the method of durability analysis with inhomogeneity of the material, the heterogeneous characteristics are confirmed by predicting the effective strain to perform the plastic deformation simulation influenced from the strength condition and microstructure of pulley at power transmission. Analysis and prediction of effective strain from cold forging is performed by software DEFROM for inhomogeneous characteristics. And the stress of the real operation in performed by MSC.NASTRAN. Also, through correlation about effective strain and hardness, the failure position and the life were estimated to predict the fatigue strength and the external applied stress.

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Section: (A) and (B)mentioning

confidence: 99%

Durability analysis of an automotive component in consideration of inhomogeneous hardness

Shim

Kim

2011

J Mech Sci Technol

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“…A plate with two holes, which subject to alternating stress, was optimized in their paper to demonstrate the applicability of the method. Shim and Kim 7,8 used RSM to construct the relationship between the design parameters and the fatigue life of a V-belt pulley. The optimized result was manufactured and the valid optimum design was verified by the fatigue test.…”

Section: Introductionmentioning

confidence: 99%

Metamodel-based optimization of the bolted connection of a wing spar considering fatigue resistance

Xia

Yao

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part G:

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In this paper, the optimization considering the constraint of fatigue life was conducted on a bolted connection of a wing spar, after which a series of fatigue tests were carried out to verify the optimized result. The object of the optimization was to minimize the weight of the bolted connection. Meanwhile, a constraint of fatigue life was taken into account. Considering the nonlinear relationship between the fatigue life and the design parameters, experimental design and Kriging model were applied in the optimization. In order to reduce the calculation cost of the finite element analysis and the fatigue life prediction, a so-called coupled bolt model was applied and stress severity factor approach was applied to assess the fatigue life of the connection. After the optimization, the weight of the optimized result was only 85.9% of the initial design and the fatigue life of the structure satisfied the constraint condition. In order to evaluate the reasonability of the optimized result, six specimens were machined based on the optimized result. Using these specimens, a series of fatigue tests were carried out. The test results demonstrated that the optimized result could be regarded as the best solution.

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“…5 Although the geometry and the usage of sheave are very simple, the design of a sheave is not easy since the loading conditions are very complex due to its rotation. As a study on a pulley, similar to the sheave in the sense of rotation, Shim and Kim 6,7 performed fatigue life optimization of pulley in power-steering system using the response surface method and compared the optimal design results with fatigue test results. They obtained the stress distribution of the pulley under tension and torque via finite element (FE) analysis and estimated the fatigue life of pulley with variation in fatigue strength.…”

Section: Introductionmentioning

confidence: 99%

Development of fatigue stress spectrum and fatigue life prediction of endless winder sheave for wind turbine lift using finite element analysis

Choi

Lee

Kang

2014

Journal of Renewable and Sustainable Energy

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This paper aims to develop the fatigue stress spectrum and predicted fatigue life of the endless winder sheave using finite element (FE) analysis, which is utilized in wind turbine lift. First, we identified the fatigue critical location (FCL) of endless winder sheave through a static FE analysis. And the lifting velocity was measured using the non-contact velocity dectector. Based on the measured lifting velocity and compressive loads by traction of endless winder sheave, the compressive loadangle of rotation history at the FCL was determined. According to the compressive load-angle of rotation time history, total 230 FE analyses were performed with the interval of the angle of rotation of 15 , we eventually obtained the fatigue stress spectrum at the FCL. These results were processed using the rainflow cycle counting and the Goodman equation. Finally, the fatigue life of sheave was evaluated using the linear damage cumulative rule. V C 2014 AIP Publishing LLC.

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Consideration of fatigue life optimization of pulley in power-steering system

Cited by 11 publications

References 2 publications

Durability analysis of an automotive component in consideration of inhomogeneous hardness

Durability analysis of an automotive component in consideration of inhomogeneous hardness

Metamodel-based optimization of the bolted connection of a wing spar considering fatigue resistance

Development of fatigue stress spectrum and fatigue life prediction of endless winder sheave for wind turbine lift using finite element analysis

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