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兵工学报 ›› 2017, Vol. 38 ›› Issue (3): 561-567.doi: 10.3969/j.issn.1000-1093.2017.03.020

• 论文 • 上一篇    下一篇

基于中心复合设计的热喷涂层接触疲劳寿命预测研究

马润波, 董丽虹, 王海斗, 邢志国   

  1. (装甲兵工程学院 装备再制造技术国防科技重点实验室, 北京 100072)
  • 收稿日期:2016-07-04 修回日期:2016-07-04 上线日期:2017-04-24
  • 通讯作者: 王海斗(1969—),男,研究员,博士生导师 E-mail:wanghaidou@aliyun.com
  • 作者简介:马润波(1976—),女,讲师。E-mail:marunbo@139.com
  • 基金资助:
    国家自然科学基金重点项目(51535011)

Research on Contact Fatigue Life Prediction of Thermally Sprayed Coating Based on Central Composite Design

MA Run-bo, DONG Li-hong, WANG Hai-dou, XING Zhi-guo   

  1. (National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, China)
  • Received:2016-07-04 Revised:2016-07-04 Online:2017-04-24

摘要: 采用中心复合设计方法,研究服役条件对超音速等离子喷AT40涂层接触疲劳寿命的影响。基于回归分析原理,利用响应曲面方法建立了综合考虑转速、接触应力和滑差率的多因素寿命预测模型,并分析了转速、接触应力和滑差率对接触疲劳寿命的综合作用。研究结果表明:不同服役条件下AT40涂层的接触疲劳寿命具有相同的寿命分布;滑差率是影响接触疲劳寿命的主要因素,接触应力是次要因素,而转速的影响不显著;接触应力和滑差率的交互作用、转速和滑差率的交互作用均对接触疲劳寿命有显著影响。模型的显著性检验结果表明,所拟合的响应曲面回归模型具有较高的显著性,可用于表征转速、接触应力和滑差率与AT40涂层滚动接触疲劳寿命的关系。

关键词: 复合材料, 再制造, 接触疲劳, 超音速等离子喷涂, 中心复合设计, 多因素

Abstract: The effect of service condition on contact fatigue life of supersonic plasma sprayed AT40 coating is studied by central composite design method. A multi-factor life prediction model with rotation speed, contact stress, and slip ratio is established by using response surface method based on the regression analysis principle, and the comprehension effects of the three factors on contact fatigue life are analyzed. The results show that the rolling contact fatigue life of AT40 coating has same life distribution under different service conditions. Slip ratio has the main effect on the life, and the contact stress has the secondary main effect on it,and the rotation speed has the minimum effect on it. The interactive effect between contact stress and slip ratio and the interactive effect between rotation speed and slip ratio both significantly influence the rolling contact fatigue life.The significance test results show that the response surface model can be used to characterize the relationship among the load conditions (rotation speed, contact stress, and slip ratio) and the rolling contact fatigue life of AT40 coating. Key

Key words: compositematerial, remanufacturing, contactfatigue, supersonicplasmaspray, centralcompositedesign, multi-factor

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