基于区间长度等分的疲劳损伤寿命预测模型

翟银秀; 叶南海; 蔡鹏; 闫彩伟; 王利

doi:10.13433/j.cnki.1003-8728.2014.0731

基于区间长度等分的疲劳损伤寿命预测模型

doi: 10.13433/j.cnki.1003-8728.2014.0731

1.
湖南大学,汽车车身先进设计与制造国家重点实验室长沙 410082

基金项目:

国家自然科学基金项目(51375154)资助

详细信息

作者简介:
翟银秀(1986-)，硕士研究生，研究方向为疲劳损伤寿命，zhaiyinxiu@126.Com

通讯作者:
叶南海，副教授，fatiguehnu@126.com

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- 文章访问数: 103
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- 被引次数: 0
出版历程
- 收稿日期: 2013-03-05
- 刊出日期: 2015-06-10

A Fatigue Damage Life Prediction Model Based on Interval Length Division

1.
State Key Laboratory of Advanced Design and Manufacture for Vehicle Body,Hunan University,Changsha 410082

摘要

摘要: 现有疲劳损伤模型寿命计算存在着经验数据,计算结果的准确性有待提高。在疲劳载荷谱技术的基础上,将疲劳加载区间长度进行虚拟等分,根据MINEr思想进行疲劳损伤寿命的计算。提出了基于区间长度虚拟等分的疲劳损伤寿命预测模型,并从理论层面和仿真分析试验两个方面加以证明和验证。算例表明:基于区间长度等分的疲劳损伤模型,寿命预测结果的准确与可信性得到了提高。
- 疲劳载荷谱 /
- 损伤模型 /
- 虚拟区间长度等分 /
- 疲劳寿命计算
Abstract: The fatigue life prediction accuracy for structures based on existing fatigue damage models needs to beimproved further due to the applications of some experience data. In this paper, a new fatigue life prediction modelis presented based on the fatigue load spectrum technique with fatigue loading of virtual equal interval length, andalso calculating the fatigue life through the idea of MINEr. This model is verified through the theoretical andsimulation analysis. Example applications show that the accuracy and credibility of life prediction results of the newmodel have been improved.
- calculations /
- computer simulation /
- computer software /
- convergence of numerical methods

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参考文献(9)

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