| 基于损伤容限设计的冶金桥式起重机疲劳寿命研究 |
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| 作者姓名： | 杨金堂 周诗洋 |
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| 作者单位： | 武汉科技大学机械自动化学院 |
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| 摘 要： | 以180t×24.85m冶金桥式起重机为研究对象,通过无损探伤发现桥架北主梁的下盖板上有裂纹,应用有限元分析和损伤容限设计方法对起重机裂纹的疲劳寿命进行计算。结果表明,起重机裂纹扩展到临界尺寸需要大约5年的时间。
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| 关 键 词： | 疲劳寿命 冶金桥式起重机 损伤容限设计 |
| 收稿时间： | 2011/7/19 0:00:00 |
Research on fatigue life of metallurgical overhead traveling crane based on damage tolerance design |
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| Authors: | Yang Jintang and Zhou Shiyang |
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| Institution: | (College of Machinery and Automation,Wuhan University of Science and Technology,Wuhan 430081,China) |
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| Abstract: | Taking a 180 t·24.85m metallurgical crane in a certain steel plant as the subject,this research found a crack at under cover plate of north beam by non-destructive inspection.Using finite element analysis and damage tolerance design,it calculated the fatigue life of the crane crack.The results show that the crane will need thorough repair in 2015 when the crack reaches critical dimension. |
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| Keywords: | fatigue life metallurgical overhead traveling crane damage tolerance design |
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