基于随机振动的特种车架疲劳寿命分析

2010 Second International Conference on Computational Intelligence and Natural Computing Pub Date : 2010-11-22 DOI:10.1109/CINC.2010.5643716

Fan Qin-man, Wu Yong-hai, Luan Kun

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引用次数: 1

摘要

通过对某新型特种车架的研究，建立了基于随机振动理论的车架疲劳分析模型。根据预测点的应力类别和材料性能，得到修正后的疲劳曲线(S-N曲线)。以车架有限元分析结果为疲劳计算依据，运用道路谱车辆振动理论计算车架的疲劳寿命和疲劳损伤，并对计算结果进行了讨论。本文所采用的模型和分析方法对其他汽车产品的疲劳分析和抗疲劳设计也具有一定的指导意义。

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Fatigue life analysis of a special vehicle frame based on random vibration

The fatigue analysis model of vehicle frame based on random vibration theory is established according to studying a new special vehicle frame. According to the stress category of predicted points and material property, the modified fatigue curve(S-N curve) is obtained. Taking the FEA analysis results of the vehicle frame as the basis of fatigue calculation, the fatigue life and the fatigue damage of the vehicle frame are calculated using vehicle vibration theory with road spectrum, meanwhile the calculation results are also discussed. The model and the analysis method adopted in this paper also have significance to fatigue analysis and anti-fatigue design of other vehicle products.

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来源期刊

2010 Second International Conference on Computational Intelligence and Natural Computing

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