Modal Parameter Identification Through Simulated Evolution
碩士 === 國立成功大學 === 航空太空工程學系 === 84 === In this thesis, modal parameter identification of linear vibrating structure based on optimization approach is studied. A global optimization search algorithm based on the Darwinian Evolutiona...
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1996
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| Online Access: | http://ndltd.ncl.edu.tw/handle/73178867749938107646 |
| Summary: | 碩士 === 國立成功大學 === 航空太空工程學系 === 84 === In this thesis, modal parameter identification of linear
vibrating structure based on optimization approach is
studied. A global optimization search algorithm
based on the Darwinian Evolutionary Theory is implemented
for identification of modal parameters of a linear
vibrating structure. The capability of the evolutionary method
in locating the global minimum among numerous local
minima will be demonstrated. Moreover, different
kinds of convergence criteria for the simulated evolution
and their effects on the identification results will be
studied. The reliability of the searching technique in modal
parameter identification under different measurement noise
levels will also be examined. Results show that the
technique is effective and reliable in identifying
dominant modes under moderate noisy conditions.
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