Reliability analysis of diesel engine crankshaft based on 2D stress strength interference model

Zhou, Xun; Yu, Xiaoli

doi:10.1631/jzus.2006.a0391

Cited by 9 publications

(9 citation statements)

References 5 publications

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“…1. The fatigue damage caused by one load cycle is denoted as D(1), which can be expressed as where N(s a , s m ) is the fatigue life under stress level (s a , s m ), which can be determined by equation (10).…”

Section: Modified Miner's Rulementioning

confidence: 99%

Fatigue life prediction of wind turbine rotor blade composites considering the combined effects of stress amplitude and mean stress

Gao

Kou

2018

Proceedings of the Institution of Mechanical Engineers, Part O:

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To predict fatigue life of wind turbine rotor blade composites under random loads, the combined effects of stress amplitude and mean stress are considered. First, the generalized s-N curved surface is introduced to characterize the fatigue properties of composites under constant amplitude cyclic load. Then, a modified Miner's rule is developed to reveal the evolution process of fatigue damage under variable amplitude cyclic loads. Finally, a fatigue life prediction model is presented based on the total probability formula and the modified Miner's rule, which can reflect the combined effects of stress amplitude and mean stress on fatigue life. The experimental data of wind turbine rotor blade composites are used to illustrate the specific process of the proposed method; the results indicate that the prediction values of the developed method are reasonable and effective.

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Section: Modified Miner's Rulementioning

confidence: 99%

Fatigue life prediction of wind turbine rotor blade composites considering the combined effects of stress amplitude and mean stress

Gao

Kou

2018

Proceedings of the Institution of Mechanical Engineers, Part O:

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“…If the probability density functions are in normal distribution, the reliability may also be calculated analytically, as elaborated by Kececioglu (2003) and Zhou and Yu (2006).…”

Section: Time-based and Stress-or Damage-based Probabilistic Modelsmentioning

confidence: 99%

“…Zhou and Yu (2006) developed a two-dimensional stress-strength model by adding another dimension to cover the variability of the stress asymmetric ratio. They applied their model to diesel engine crankshaft reliability analysis.…”

Section: Time-based and Stress-or Damage-based Probabilistic Modelsmentioning

confidence: 99%

Durability and reliability in diesel engine system design

Xin¹

2013

Diesel Engine System Design

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“…For the critical engineering parts such as the crankshaft, the important positions such as the fillet and the oil hole always have the property of variable cross-sections, which will result in the concentration of stress and the accumulated damage during the working period will be the main contributor to the final failure e.g., [1]. Thus, the correct prediction of the fatigue limit load of these parts becomes important, especially in the design stage before manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Component HCF Research Based on the Theory of Critical Distance and a Relative Stress Gradient Modification

Sun

Liu

et al. 2016

PLoS ONE

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For the critical engine parts such as the crankshaft, the fatigue limit load is one of the most important parameters involved the design and manufacture stage. In previous engineering applications, this parameter has always been obtained by experiment, which is expensive and time-consuming. This paper, based on the theory of critical distance (TCD), first analyzes the stress distribution of a crankshaft under its limit load. In this way, the length of the critical distance can be obtained. Then a certain load is applied to a new crankshaft made of the same material and the effective stress is calculated based on the critical distance above. Finally, the fatigue limit load of the new crankshaft can be obtained by comparing the effective stress and the fatigue limit of the material. Comparison between the prediction and the corresponding experimental data shows that the traditional TCD may result in bigger errors on some occasions, while the modified TCD proposed in this paper can provide a more satisfactory result in terms of the fatigue limit for a quick engineering prediction.

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Reliability analysis of diesel engine crankshaft based on 2D stress strength interference model

Cited by 9 publications

References 5 publications

Fatigue life prediction of wind turbine rotor blade composites considering the combined effects of stress amplitude and mean stress

Fatigue life prediction of wind turbine rotor blade composites considering the combined effects of stress amplitude and mean stress

Durability and reliability in diesel engine system design

Component HCF Research Based on the Theory of Critical Distance and a Relative Stress Gradient Modification

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