美国《工程索引》核心期刊
中国科学引文数据库核心期刊
国际刊号:ISSN 1005-1120
国内刊号:CN 32-1389/V
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  • 主管:工业和信息化部
  • 主办:南京航空航天大学
  • 国际刊号:ISSN 1005-1120
  • 国内刊号:CN 32-1389/V
  • 地址:南京市御道街29号
  • 电话:025-84892071
  • 传真:025-84892071
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  • 邮编:210016
Qing Guangwei, Yue Lin, Guo Qingtao, Tao Yanhe, Hu Jingbo.Damage Identification of General Overhead Travelling Crane Structure Based on Model Updating by Sensitivity[J].南京航空航天大学学报英文版,2017,34(3):308-317
Damage Identification of General Overhead Travelling Crane Structure Based on Model Updating by Sensitivity
  
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中文关键词:  
英文关键词:model updating; structure parameterization; damage identification; ambient excitation
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作者单位
Qing Guangwei, Yue Lin, Guo Qingtao, Tao Yanhe, Hu Jingbo 1.College of Mechanical and Electronical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R. China; 2.Nanjing Special Equipment Inspection Institute, Nanjing 210019, P.R. China 
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中文摘要:
      
英文摘要:
      A model based damage identification was proposed by facilitating parameter sensitivity analysis and applied to a general overhead travelling crane. As updating reference data, experimental modal frequency was obtained by operational modal analysis (OMA) under ambient excitation. One dimensional damage function was defined to identify the damage by bending stiffness. The results showed that the model updating method could locate the damage and quantitatively describe the structure. The average error of eigenvalues between updated model analysis and the experimental results was less than 4% which proved the accuracy reliable. The comparison of finite element analysis and the test results of the deflection under the capacity load further verified the feasibility of this method.
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