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多点分布载荷作用下TBM刀盘裂纹萌生寿命预测

欧阳湘宇 孙伟 霍军周

欧阳湘宇, 孙伟, 霍军周. 多点分布载荷作用下TBM刀盘裂纹萌生寿命预测[J]. 机械科学与技术, 2016, 35(10): 1484-1488. doi: 10.13433/j.cnki.1003-8728.2016.1002
引用本文: 欧阳湘宇, 孙伟, 霍军周. 多点分布载荷作用下TBM刀盘裂纹萌生寿命预测[J]. 机械科学与技术, 2016, 35(10): 1484-1488. doi: 10.13433/j.cnki.1003-8728.2016.1002
Ouyang Xiangyu, Sun Wei, Huo Junzhou. Prediction of Cutterhead Crack Initiation Lifetime for Tunnel Boring Machine under Multi-point Distribution Loads[J]. Mechanical Science and Technology for Aerospace Engineering, 2016, 35(10): 1484-1488. doi: 10.13433/j.cnki.1003-8728.2016.1002
Citation: Ouyang Xiangyu, Sun Wei, Huo Junzhou. Prediction of Cutterhead Crack Initiation Lifetime for Tunnel Boring Machine under Multi-point Distribution Loads[J]. Mechanical Science and Technology for Aerospace Engineering, 2016, 35(10): 1484-1488. doi: 10.13433/j.cnki.1003-8728.2016.1002

多点分布载荷作用下TBM刀盘裂纹萌生寿命预测

doi: 10.13433/j.cnki.1003-8728.2016.1002
基金项目: 

国家自然科学基金项目(51375001)与国家973计划项目(2013CB035400)资助

详细信息
    作者简介:

    欧阳湘宇(1990-),硕士,研究方向为机械动力学及疲劳断裂,onjon@outlook.com;孙伟(1967-),教授,博士,研究方向为大型复杂机械装备设计及性能优化,sunwei@dlut.edu.cn

    欧阳湘宇(1990-),硕士,研究方向为机械动力学及疲劳断裂,onjon@outlook.com;孙伟(1967-),教授,博士,研究方向为大型复杂机械装备设计及性能优化,sunwei@dlut.edu.cn

Prediction of Cutterhead Crack Initiation Lifetime for Tunnel Boring Machine under Multi-point Distribution Loads

  • 摘要: 隧道掘进机(TBM)是用于隧道掘进的大型复杂工程机械,刀盘是TBM的关键部件承载数十把滚刀与岩石作用。掘进时的反力和扭矩作用在刀盘上容易产生裂纹降低寿命,刀盘的寿命制约着TBM的寿命。为了研究刀盘的寿命,提出了综合运用多体动力学和有限元计算刀盘动应力的一种方法并使用此方法计算了刀盘的动应力,计算结果与实测数据的均值误差仅为13%。对动应力进行统计计数并按照幅值的分布规律将其分为八级,结合材料的应力-寿命曲线对刀盘裂纹萌生寿命进行了预测,预测结果表明刀盘的裂纹萌生寿命为84天。裂纹萌生寿命预测结果可以为TBM刀盘的抗疲劳设计提供参考,也可以为安排施工检修周期提供依据。
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出版历程
  • 收稿日期:  2015-01-16
  • 刊出日期:  2016-10-05

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