Crack Detection of Fan Blade Based on Natural Frequencies - Details

Author：

Yu, Mengyao (Yu, Mengyao.) | Fu, Sheng (Fu, Sheng.) | Gao, Yinbo (Gao, Yinbo.) | Zheng, Hao (Zheng, Hao.) | Xu, Yonggang (Xu, Yonggang.)

Indexed by：

EI Scopus

Abstract：

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.　©　2018　Mengyao　Yu　et　al.

Keyword：

Crack detection Fluid structure interaction Natural frequencies MATLAB Damage detection

Author Community：

[ 1 ] [Yu, Mengyao]Beijing Precision Metrology Laboratory, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Fu, Sheng]Beijing Precision Metrology Laboratory, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Gao, Yinbo]Beijing Precision Metrology Laboratory, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zheng, Hao]Ennovation System Control Co., Ltd., Beijing; 101111, China
[ 5 ] [Xu, Yonggang]Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing; 100022, China