grey relation coefficient
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2015 ◽  
Vol 23 (2) ◽  
pp. 213-221 ◽  
Author(s):  
Ivana ŠTIMAC GRANDIĆ ◽  
Davor GRANDIĆ

A new structural damage estimation procedure using grey relation coefficient and curvature of displacement influence line in beams using sparse measurement is proposed in this paper. The method is based on static structural response which can be obtained using single sensor. Determination of damage location as well as determination of corre­sponding damage severity can be easily calculated with simple arithmetic operations, which is the main advantage of the proposed method. Conducted numerical simulation for different damage scenarios and various measurement sparseness and experimental validation confirm the effectiveness of proposed damage severity estimation procedure.


2006 ◽  
Vol 532-533 ◽  
pp. 1104-1107
Author(s):  
Ya Dong Fang ◽  
Wei Ping He ◽  
Lai Hong Du ◽  
Jin Liang Chen ◽  
Feng Zhao ◽  
...  

According to requirement of cooperative manufacturing partner selection based on networked manufacturing environment, the paper resolves cooperative manufacturing partner selection problem by ant colony algorithm and grey relation theory: Firstly, manufacturing task is divided into series of working procedure in time order by technologic planning. Secondly, considerable candidate enterprises are selected in terms of multi-hierarchy grey relation coefficient at each working procedure node to reduce the size of problem. Lastly, cooperative enterprise selecting path is decided by making use of ant colony algorithm in light of transportation cost.


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