| 带式烧结机台车篦条疲劳分析 |
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| 引用本文： | 齐铁力.带式烧结机台车篦条疲劳分析[J].唐山学院学报,2021,34(6):28-33. |
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| 作者姓名： | 齐铁力 |
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| 作者单位： | 唐山学院 河北省智能装备数字化设计及过程仿真重点实验室, 河北 唐山 063000;唐山学院 机电工程系, 河北 唐山 063000 |
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| 基金项目： | 唐山市人才资助项目（A202002031） |
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| 摘 要： | 以带式烧结机台车中的篦条为研究对象，运用有限元方法对两种工况下的篦条进行热应力分析，确定了影响篦条失效的主要因素，明确了篦条屈服强度随温度变化的规律。选取两工况下等效应力最大的节点作为疲劳位置，对篦条进行疲劳分析，确定了篦条易疲劳的薄弱部位；并通过与篦条实际寿命相对比，验证了软件计算篦条疲劳寿命的准确性。
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| 关 键 词： | 带式烧结机台车 篦条 有限元方法 热应力 疲劳特性 |
Fatigue Analysis of the Grate Bar in the Band Sintering Machine Trolley |
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| QI Tie-li.Fatigue Analysis of the Grate Bar in the Band Sintering Machine Trolley[J].Journal of Tangshan College,2021,34(6):28-33. |
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| Authors: | QI Tie-li |
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| Institution: | Key Lab of Intelligent Equipment Digital Design and Process Simulation of Hebei Province, Tangshan University, Tangshan 063000, China;Department of Mechanical and Electrical Engineering, Tangshan University, Tangshan 063000, China |
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| Abstract: | Taking the grate bars in the band sintering machine trolley as the research object, the thermal stress of grate bars under two working conditions is analyzed with finite element method.In this way, the main factors affecting the failure of the grate bars are determined, and the pattern of the yield strength changing with temperature is made clear. The node with the maximum equivalent stress under the two working conditions being selected as the fatigue position, a fatigue analysis is carried out and the weak parts prone to fatigue are determined.Then, the results are compared with the actual life of the grate bars and the accuracy of their fatigue life calculated by the software is verified. |
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| Keywords: | band sintering machine trolley grate bars finite element method thermal stress fatigue property |
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