• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2017, Vol. 53 ›› Issue (5): 41-49.doi: 10.3901/JME.2017.05.041

• 绿色制造技术 • 上一篇    下一篇

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再制造毛坯疲劳损伤临界阈值及可再制造性判断研究*

王金龙1, 张元良1, 赵清晨1, 张洪潮1，2   

  1. 1. 大连理工大学机械工程学院 大连 116023；
    2. 德克萨斯理工大学工业工程系 卢博克市 57007 美国
  • 出版日期:2017-03-05 发布日期:2017-03-05
  • 作者简介:

    王金龙，男，1989年出生，博士研究生。主要研究方向为再制造，剩余疲劳寿命预测。

    E-mail：1012694066@qq.com

    张元良(通信作者)，男，1959年出生，博士，教授，博士研究生导师。主要研究方向为再制造与可持续设计。

    E-mail：zylgzh@dlut.edu.cn

  • 基金资助:
    * 国家重点基础研究发展计划(973计划，2011CB13401)和国家自然科学基金(51375074，51475077)资助项目; 20161004收到初稿，20161222收到修改稿;

Study of Fatigue Defect Critical Threshold of Remanufacturing Cores and Judgment of Re-manufacturability Based on Fatigue Defect

WANG Jinlong1, ZHANG Yuanliang1, ZHAO Qingchen1, ZHANG Hongchao1，2   

  1. 1. School of Mechanical Engineering， Dalian University of Technology， Dalian 116023；
    2. Department of Industrial Engineering， Texas Tech University， Lubbock， TX， 57007 USA
  • Online:2017-03-05 Published:2017-03-05

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摘要：

确定疲劳损伤临界阈值以及建立超高周疲劳阶段基于损伤的可再制造性判断模型，为判断毛坯件能否进行再制造提供理论依据，保证再制造工程的顺利进行。但是目前关于基于损伤的可再制造性判断研究还没有广泛的开展，相关的定义与模型也没有提出。以离心压缩机叶片材料FV520B-I为研究对象，根据传统可制造性理论提出了损伤临界阈值的定义并建立普遍适用的损伤临界阈值模型。进一步基于疲劳试验数据、经典的疲劳理论以及疲劳竞争分析，建立针对FV520B-I的考虑表面损伤和内部损伤两种情况的超高周剩余疲劳寿命预测模型。结合损伤临界阈值模型，建立了基于损伤的可再制造性判断模型，并通过试验进行了验证。基于损伤的可再制造性研究是一项理论上有难度，实际应用有价值的工作，能够有效提高可再制造工程的效率，避免不必要的再制造。

关键词: FV520B-I, 可再制造性, 剩余疲劳寿命, 疲劳损伤临界阈值

Abstract:

Determining the defect critical threshold and establishing the judgment model of remanufacturability based on defect for FV520B-I are the key works in re-manufacturing engineering of FV520B-I. Neither the related research has not been carried out widely, nor have the concepts of critical defect threshold and judgment model been proposed. According to the classic remanufacturing theory, the definition of the fatigue critical defect threshold is proposed and the fatigue defect critical threshold model is established. The fatigue life prediction models with the consideration of surface defect and internal defect are determined with the comprehensive application of experimental data, classic fatigue theories and fatigue competition analysis. The re-manufacturability judgment model is established with combination of the fatigue defect critical threshold model and the fatigue life models. The applicability of the judgment model is tested by the experiments. The study of the re-manufacturability based on the defect is difficult in theory but valuable in actual engineering. It is important to improve the efficiency of re-manufacturing engineering and it is helpful to avoid the unnecessary remanufacturing.

Key words: fatigue life, FV520B-I, remanufacturability, fatigue defect critical threshold

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