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《Journal of Vibration and Shock》 2007-02
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APPLICATION OF SOFM NETWORK FOR STRUCTURE DAMAGE LOCATION IDENTIFICATION

ZHANG Yu-zhi,LI Qiao,SHAN De-shan(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China)  
In order to identify the structure damage location and overcome the disadvantages of BP network,such as being affected greatly by ill samples and having poor antinoise ability,SOFM(Self-Organizing Feature Map)network is adopted to identify the damage location in a truss structure.The identification results show that SOFM network can distinguish similar samples and give intuitionistic judgement of the identification results through the topology map.When the noise is removed,the damage location can be identified correctly.When the noise level is under 30%,all the elements except individual element can be identified correctly in a probability over 95%,which shows that the SOFM network has a powerful antinoise ability.
【CateGory Index】: O346.5
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