Simplified Estimation Algorithms for Aircraft Structural Damage Effects Using an Artificial Immune System

2015 ◽  
Vol 8 (4) ◽  
pp. 118
Author(s):  
Mario George Perhinschi ◽  
Dia Al Azzawi ◽  
Hever Moncayo
Author(s):  
Maribel Anaya Vejar ◽  
Diego Alexander Tibaduiza Burgos ◽  
Francesc Pozo

Structural damage assessment methodologies allow providing knowledge about the current state of the structure. This information is important because allows to avoid possible accidents and perform maintenance tasks in the structure. This chapter proposes the use of an artificial immune system to detect and classify damages in structures by using data from a multi-actuator piezoelectric system that is working in several actuation phases. In a first step of the methodology, principal component analysis (PCA) is used to build a baseline model by using the collected data. In a second step, the same experiments under similar conditions are performed with the structure in different states (damaged or not). These data are projected into the different baseline models for each actuator, in order to obtain the damages indices and build the antigens. The antigens are compared with the antibodies by using an affinity function and the result of this process allows detecting and classifying damages.


2009 ◽  
Vol 13 (12) ◽  
pp. 1209-1217 ◽  
Author(s):  
Wei Wang ◽  
Shangce Gao ◽  
Zheng Tang

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