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International Conference on Mechanical and Electrical Technology 2009 (ICMET 2009)

By
Wenzheng Li
Wenzheng Li
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ISBN:
9780791802946
No. of Pages:
287
Publisher:
ASME Press
Publication date:
2009

When the test data was insufficient, damage identification equations were underdetermined. The method of iteration or optimization algorithm was always used to solve the equations while the process was low efficient and the results were not reliable. To enhance the efficiency and accuracy, the method of damage identification was implemented by two steps. To locate damage in the structure preliminarily, the residual force vector was improved through a proper definition of general residual force vector (GRFV), then using the difference of frequency to predict the damage extent. The examples show that the damage locations can be identified quickly by GRFV, even if the measurement errors were taken into account.

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