期刊
INTERNATIONAL JOURNAL OF ROTATING MACHINERY
卷 2018, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2018/2095385
关键词
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A simple method was developed to detect damage based on a discrete mathematical model for fan blades using changes in natural frequencies combined with a fluid-structure analysis. In addition, a numerical approach was developed for the fluid-structure analysis. The results of numerical simulation provided the natural frequency data for each mode under different locations and sizes of a single crack in a blade. A fault database was built using Matlab. The damage of a blade was detected using the changes in natural frequencies. This study will assist in investigating the effect of a crack on a structure from different perspectives; the simulation results show the effectiveness of this approach.
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